····· lezzter Preis 8.50€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Schmetterlinge zählen zu den farbenprächtigsten und reizvollsten Geschöpfen der Natur. Alle auf den ganzseitigen Farbtafeln dargestellten Schmetterlinge wurden erstmals mit über 1.700 deutschen Namen und Doppelnamen versehen. Die aktuelle Auflage enthält ein ausführliches Kapitel über die Wanderfalter, die `Zugvögel` unter den Schmetterlingen. ····· 10361198341
für 9.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Im Original 1912 erschienenes Werk über die Posener Wirbeltierfauna. ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· 10361142790
für 9.99€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Haltung und Zucht der euröpäischen Sumpfschildkröte (Emys orbicularis) ist ein Ratgeber für alle Halter dieser seltenen Art und alle, die es werden möchten.Der Leser erhält wertvolle Tipps zu den Themen:- Fütterung- Zucht- Haltung im Aquarium- Freilandhaltung- Krankheiten- rechtliche Bestimmungen- Schutzprojekte ····· 1036115564
····· lezzter Preis 14.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Reprint des Hefts 93 aus der Reihe `Meereskunde` aus dem Jahr 1914 von Dr. Leopold Glaesner zu Schutzmechanismen der Meerestiere. ····· ····· ····· ····· ····· ····· ····· ····· 1036160079
····· lezzter Preis 14.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Es ist ein neues Bild von dem großen Jäger unserer Breiten in den letzten Jahren entstanden. Wir kennen den Wolf aus Märchen, halten ihn für aggressiv, bösartig, manchmal auch dumm und haben trotzdem Angst vor ihm. Wie sollten wir ihn auch lieben, wenn er doch Großmütter frisst, als Werwolf sein Unwesen treibt und nach bisherigen wissenschaftlichen Erkenntnissen aggressiv seinen Rang im Rudel verteidigt und kompromisslos als Killermaschine in der Nähe von Menschen auftritt Das soll sich nun alles ändern. Während das bisherige Wissen über den Wolf aus Beobachtungen in Gefangenschaft gehaltener Wölfe stammt, haben Wissenschaftler in den letzten Jahren endlich Methoden in die Hand bekommen, die ein Begleiten und Beobachten auch in natürlicher Umgebung möglich machen. Die daraus gewonnenen Erkenntnisse lassen den Wolf in einem neuen Licht erscheinen. Dieses Buch räumt mit falschen Wissen auf. Vielleicht wird dem geschundenen Räuber dadurch auch ein neues, ein gerechteres Image verpasst. ····· 10361181954
für 16.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Kurt Ehrenreich Floericke (1869-1934) war ein deutscher Naturwissenschaftler und Verfasser zahlreicher populärwissenschaftlicher Darstellungen. Nachdruck des Originals von 1921. ····· 10361142852
····· lezzter Preis 16.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dittrich beschreibt in diesem Buch die Biolumineszenz zu Lande und zu Wasser. Nachdruck der Originalausgabe aus dem Jahr 1888. ····· ····· ····· ····· ····· ····· ····· ····· ····· 10361150597
····· lezzter Preis 17.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Band konzentriert sich auf die Darstellung des in unseren Breiten heimischen Fuchses, dessen Verbreitung, Aussehen, Sinne, Organe und Lebensäußerungen. Zähmbarkeit und der Fuchs in der Waidmannssprache sowie eine tabellarische Darstellung der Füchse weltweit runden die Darstellung ab. ····· 10361209812
····· lezzter Preis 19.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In vivo Infusionen von Adenosin und den Adeninnukleotiden in den Infrabranchialsinus des Amerikanischen Hummers, Homarus americanus steigerten die Herzfrequenz, die Fließgeschwindigkeit und die Ventilationsfrequenz der Scaphognathiten (Stegen und Grieshaber, 2001). Während exzessiver Muskelaktivität, die z. B. bei der Fluchtreaktion auftritt, stieg der Adenosingehalt in der Abdominalmuskulatur signifikant an, wohingegen in der Hämolymphe keine signifikante Zunahme gemessen werden konnte (Stegen, Maurer und Grieshaber, in Vorbereitung). Es stellte sich nun die Frage, auf welchem Weg Adenosin und die Nukleotide ihre Herzaktivität-steigernde Wirkung vermitteln Mit Hilfe von Pulsed-Doppler-Flowmeter in vivo Messungen bei intakten sowie kardioregulatorisch-denervierten Tieren und der semi-isolierten (in situ) Herzpräparation bei der das Herz keine `externen` neuronalen und neurohormonellen Modulationen erhält, sollte es möglich sein diese Wege aufzuklären. Der Vergleich der durch Adenosin und seinen Nukleotiden in den verschiedenen Präparationen ausgelösten Effekte erlaubt, Aussagen über mögliche direkte oder indirekte Wirkungsvermittlungen. In der semi-isolierten (in situ) Herzpräparation änderten weder die Adenosin- noch die Nukleotidperfusionen die Herzfrequenz. Durch die Perfusionen mit den Nukleotidlösungen wurde, im Gegensatz zur Perfusion mit Adenosin, die Kontraktionskraft des semi-isolierten (in situ) Herzens erhöht. Offensichtlich vermitteln Adenosin und die Adeninnukleotide keinen Einfluß auf das Herzganglion, wohingegen die Nukleotide einen direkten Einfluß auf das Myocardium ausüben. In den in vivo Präparationen wurde in intakten Tieren durch die Adenosin- und Adeninnukleotidinfusionen die Herzfrequenz schnell gesteigert. Hingegen wurde in denervierten Tieren ein langsamer, gradueller Anstieg ausgelöst, der in seiner maximalen Ausprägung jedoch geringer war als in intakten Tieren. Augenscheinlich ist der Einfluß von Adenosin, aber auch von dessen Nukleotiden auf die Herzfrequenz indirekter Natur, der über das zentrale Nervensystem via kardioregulatorischen Nerven vermittelt wird. Der langsame graduelle Anstieg der Herzfrequenz nach dem durchtrennen der kardioregulatorischen Nerven lässt vermuten, daß Substanzen, die in die Hämolymphe sezerniert werden, für diesen Anstieg verantwortlich sein könnten. In Frage kommen dafür Neurohormone. Wobei der Einfluß von Dopamin, Serotonin und Octopamin unter Adenosineinfluß ausgeschlossen zu sein scheint, da keine signifikant gesteigerten Konzentrationen in der Hämolymphe ermittelt werden konnten. Jedoch müssen Peptidhormone sowie bisher nicht identifizierte Substanzen für die beobachteten Effekte weiterhin in Betracht gezogen werden. Ebenfalls indirekter Natur, ausgelöst durch Adenosin und die Adeninnukleotide, ist der langsame Anstieg der Herzfrequenz, wenn er aus einem vergrößerten Schlagvolumen resultierend, zu einer Dehnung des Ventrikels führt. Im Gegensatz zur Herzfrequenz wird der Hämolymphfluß anders reguliert. In semi-isolierten (in situ) Herzen verursachte Adenosin keinen direkten Effekt, wohingegen die Nukleotide zu einem Anstieg des ventrikulären Drucks führten, der für das gesteigerte Herzminutenvolumen verantwortlich war. In den beiden in vivo Präparationen kam es durch die Infusion aller Purine zu einer deutlich gesteigerten Fließgeschwindigkeit in den untersuchten Gefäßen. Diese Zunahme kann indirekt aus einem Anstieg des ventrikulären Drucks und einem vergrößerten Schlagvolumen erfolgen oder aus direkten Einflüssen an der Peripherie. Hier kann z. B. über die kardioarteriellen Klappen oder den Gefäßen der Widerstand reguliert werden. Unbekannte bzw. noch kaum untersuchte Faktoren müssen allerdings ebenfalls berücksichtigt werden. Faktoren, die zu einem veränderten ventrikulären Druck und Schlagvolumen führen, wären z. B. der Einfluß von Adenosin und den Adeninnukleotiden auf die Kontraktionseigenschaften der Ligamente und des Perikardialseptums. Ein weiterer Faktor betrifft die Kontraktionskraft der Herzen. Die Nukleotide können über P2-Rezeptoren, lokalisiert auf dem Herzmuskel oder in synaptischen Spalten zwischen den Motoneuronen und dem Myocardium, ihre Wirkung direkt auf das Herz transduzieren. ····· 10361169653
für 19.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Prof. Dr. med. Karsten Münstedt ist Chefarzt am Ortenau Klinikum Offenburg. Er beschäftigt sich seit mehr als 35 Jahren mit der Imkerei. Im Rahmen seiner wissenschaftlichen Arbeit hat er sich mit anderen Medizinkonzepten, wie dem der Salutogenese auseinandergesetzt. ····· 10361108220
····· lezzter Preis 19.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Zschokke behandelt in diesem Buch das Fliegen in der Tierwelt. Nachdruck der Originalausgabe aus dem Jahr 1919. ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· 10361150602
····· lezzter Preis 19.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieses ursprünglich in den 1920er erschienene Werk behandelt die Menschenaffen. ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· 10361150789
····· lezzter Preis 19.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Christiane Böhm wurde in München geboren. Nach dem Abitur unentschieden, ob sie eher eine künstlerische oder eine literarische Richtung einschlagen sollte, schrieb sie sich an der LMU für Kunstgeschichte, Neuere Geschichte und Kommunikationswissenschaften ein. Ihren Traumberuf fand sie aber bald beim Kinderfernsehen des Bayerischen Rundfunks, wo sie als Regieassistentin und Regisseurin arbeitete und schließlich als Autorin und Redakteurin viele Jahre lang Spielshows entwickelte, Sach- und Phantasiegeschichten schrieb. Es folgten Drehbücher für Kunstprojekte und die Mitarbeit beim Aufbau des Museumsshops der Hypo-Kunsthalle. Inzwischen selbst Mutter zweier Kinder erfüllt sie sich nun einen lange gehegten Traum: Kinderbücher zu schreiben! ····· 10361206190
····· lezzter Preis 19.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieser Band ist Teil eines vierzehnbändigen Werkes über die Vogelwelt Mitteleuropas. Es vermittelt den gesamten Kenntnisstand zur Biologie aller heimischen Vogelarten. Meisterhafte Zeichnungen, zahlreiche detaillierte Verbreitungskarten und Sonagramme ergänzen den Text. ····· 10361206187
····· lezzter Preis 19.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieser Band ist Teil eines vierzehnbändigen Werkes über die Vogelwelt Mitteleuropas. Es vermittelt den gesamten Kenntnisstand zur Biologie aller heimischen Vogelarten. Meisterhafte Zeichnungen, zahlreiche detaillierte Verbreitungskarten und Sonagramme ergänzen den Text. ····· 10361206195
····· lezzter Preis 19.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieser Band ist Teil eines vierzehnbändigen Werkes über die Vogelwelt Mitteleuropas. Es vermittelt den gesamten Kenntnisstand zur Biologie aller heimischen Vogelarten. Meisterhafte Zeichnungen, zahlreiche detaillierte Verbreitungskarten und Sonagramme ergänzen den Text. ····· 10361206197
····· lezzter Preis 19.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Die Beringung von Vögeln ist nach wie vor eine der wichtigsten Methoden zur Erforschung des Vogelzugs. In Deutschland werden seit mehr als 100 Jahren Vögel beringt. Über 20 Millionen Tiere haben seither mehr als eine Million Rückmeldungen erbracht. Was bislang fehlte, war eine zusammenfassende Darstellung der Funde. Der Atlas des Vogelzugs schließt diese Lücke, indem er die Daten der drei deutschen Beringungszentralen erstmals umfassend zusammenführt und in zahlreichen Karten und prägnanten Texten übersichtlich darstellt. Anhand der Funde von in Deutschland beringten bzw. mit einem auswärtigen Ring gefundenen Vögeln werden die Zug- und Überwinterungsgebiete der hierzulande brütenden, aber auch die Herkunftsgebiete durchziehender bzw. überwinternder Arten aufgezeigt. Darüber hinaus wird die Arbeit der zahlreichen ehrenamtlichen Mitarbeiter gewürdigt, die mit ihrem Einsatz seit jeher einen unschätzbaren Beitrag zur Vogelforschung leisten. ····· 10361206209
····· lezzter Preis 19.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Schweinswale sind die kleinen Vettern der Delfine und die einzigen heimischen Wale in deutschen Meeresgewässern. Regelmäßig kann man sie an den Küsten der Nord- und Ostsee beobachten und sogar in den großen Flüssen Norddeutschlands wie der Elbe tauchen sie auf. In diesem Buch lernen Kinder, Jugendliche und Erwachsene die Schweinswale kennen: Wo leben sie Wie intelligent sind sie Was können sie Mit beeindruckenden Fotos und praktischen Tipps, wie und wo man Schweinswale in unserer heimischen Natur beobachten und wie man sich für ihren Schutz engagieren kann.
Aus dem Inhalt:
- Schweinswale hautnah: Whale Watching vor der Haustür - Gefährdung und Schutz der Schweinswale - Intelligenz und Sozialverhalten der Schweinswale - Fähigkeiten und Eigenschaften der Schweinswale - Evolution der Schweinswale ····· 10361209804
····· lezzter Preis 19.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Die zur Familie der Rabenvögel gehörende Elster bewohnt in zahlreichen geographischen Formen die meisten Gebiete der Alten Welt und auch Nordamerikas. Ihr bevorzugter Biotop sind offene Landschaften in der Ebene. Elstern sind sehr ortstreu, halten oft viele Jahre lang am Brutrevier und beharrlich an einem Nest fest, das sie mit Vorliebe in der Nähe menschlicher Niederlassungen errichten. Oft in den höchsten Spitzen der Bäume wird der überdachte Bau vom Elsterpaar, das zeitlebens in Dauerehe zusammenhält, mit großer Sorgfalt hergestellt. Der Verfasser leitet seine Forschungsergebnisse aus Beobachtungen an den Lausitzer Elsterpopulationen ab. Er hat alle Verhaltensweisen der Elster bei der Balz, dem Nestbau, der Bebrütung der Eier und der Aufzucht der Jungen - zahllose Schadinsekten werden in dieser Zeit von den Vögeln verfüttert, wodurch die Elster auch im menschlichen Sinne nützlich wird - in allen Einzelheiten festgehalten. So liegt, zusammen mit dem systematischen Teil, ein abgerundetes Lebensbild dieses schönen, volkstümlichen und oft zu Unrecht so sehr verfolgten Vogels vor uns. ····· 10361209824
····· lezzter Preis 19.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Im Jahre 8 n. Chr. ließ `Augusta` in einer Arena Roms im Kampf gegen einen Elefanten ihr Leben. Augusta war das erste Indische Panzernashorn, das Europa lebend erreichte und es sollte für weitere 1500 Jahre das einzige bleiben.Das Tier war ein Geschenk an den Princeps Octavianus, den späteren Kaiser Augustus, überbracht durch eine Indische Gesandtschaft von 20/19 v. Chr. Eine mehrjährige Reise führte das Nashorn nach Antiochia und schließlich über Alexandria nach Rom. In diesem Buch wird der Weg von Augusta bis zu ihrem gewaltsamen Ende rekonstruiert. Eingebettet in diese Spurensuche ist das Umfeld ihrer Reise und die sie begleitenden Tiere und Menschen. Dazu gehört auch das ältere Bildmaterial von Nashörnern aus Indien, Mesopotamien und Ägypten oder die Nashörner im Bilderfries eines hellenistischen Grabes in Marissa (Israel). So entfaltet sich eine Natur- und Kulturgeschichte, die deutlich macht, dass Tiere in der Antike Teil des öffentlichen Lebens, ja sogar des politischen Geschehens waren und Augusta als Botschafterin die Weichen für den Handel mit dem exotischen Osten stellte. ····· 10361209832
····· lezzter Preis 19.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Fadenmolch (Lissotriton helveticus) wurde früher auch Leistenmolch genannt. Er gehört innerhalb der Familie der Echten Salamander (Salamandridae) zur Gattung der Europäischen Kleinen Wassermolche Lissotriton. Der Fadenmolch zählt zu den am wenigsten verbreiteten und bekannten einheimischen Schwanzlurchen. Der Autor arbeitet bereits seit mehreren Jahrzehnten über die Schwanzluche und auch über den Fadenmolch und den Teichmolch. Die rasante Entwicklung in der Feldherpetologie der letzten Jahrzehnte - vordergründig angetrieben durch den beängstigenden Arten- und Individuenrückgang aufgrund der immer krasser werdenden klimatischen Veränderungen bei uns - machen dringend eine grundlegende Bearbeitung aller gefährdeten Amphibienarten notwendig. Gegenwärtig besteht aufgrund der unübersehbaren Defizite von neuen Erkenntnissen ein dringender Bedarf an Forschungsarbeiten ebenso wie an Übersichten zum Handeln in der Naturschutzpraxis. Deshalb wurde auch von Seiten der Deutschen Gesellschaft für Herpetologie und Terrarienkunde und der AG Urodela dem Fadenmolch ein Kapitel in der Mertensiella-Reihe zu den gefährdeten Schwanzlurchen im Band 2 gewidmet. In der Monografie-Reihe der Neuen Brehm-Bücherei wurde mit dem Fadenmolch-Buch die klassische Gliederung der Art-Monografie beibehalten. Fachzoologische, umwelt- und naturschutzrelevante Blickrichtungen machen die Kapitel zur Ökologie, zu Verhalten, Fortpflanzung und Entwicklung der Art einem breiten Interessentenkreis zugänglich. Ein bedeutender Abschnitt widmet sich der Naturschutzpraxis, zu Themen der Gefährdung und zum Schutz. Die Methodendarstellung ist Überblick und Arbeitsorientierung zugleich und soll den Interessierten einen schnellen Zugriff zur Praxis erlauben. Ein abschließendes Kapitel zur Haltung und Pflege im Terrarium gibt den Liebhaberinnen und Liebhabern ebenso wie professionellen Artenschützerinnen und Artenschützern Hinweise zur In-situ-Vermehrung der Art. ····· 10361209856
····· lezzter Preis 22.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Haflinger Pferde zählen heute zu den Rassen, die in der ganzen Welt verbreitet sind. In mehr als 30 Staaten und auf allen Kontinenten wird ihre Zucht betrieben. Die internationale Verbreitung erfolgte besonders nach dem zweiten Weltkrieg, indem im Gefolge des wissenschaftlich-technischen Fortschritts ein großer Bedarf an Pferden mit hervorragender Eignung für die Freizeitbeschäftigung und Freizeitgestaltung der Menschen entstand. Diesen Forderungen wird der Haflinger, gepaart mit der Eignung für eine absolut vielseitige Verwendung, in bester Weise gerecht. Im Büchlein wird über die Entstehung und Verbreitung der Haflinger Rasse berichtet. Neben der Genealogie kommen die interessierenden biologischen Problemkreise des Wachstums und der Körpermaße sowie der Fortpflanzung und Fruchtbarkeit zur Behandlung. Ausführlich werden Leistungsveranlagung und Leistungsfähigkeit sowie die Verwendungs- und Einsatzgebiete des Haflingers vorgestellt. Über viele Jahre sind Pferde dieser Rasse Untersuchungs- und Beobachtungsgegenstand der Autoren gewesen, die mit der Schrift den internationalen Wissensstand wiedergeben. ····· 10361209818
····· lezzter Preis 22.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Wenn wir unsere Städte und Dörfer verlassen und die Felder, Wiesen und Wälder betreten, dann begegnen wir auch einigen Greifvögeln. In den meisten Fällen handelt es sich um Mäusebussarde. Diese Art kommt als einzige in allen Gegenden unserer Heimat relativ häufig vor. Das besagt aber noch nicht, daß der Mäusebussard von den in seinem Lebensraum arbeitenden oder sich hier beschäftigenden Menschen gekannt wird. Oft ist nicht einmal sein Name bekannt. Mäusebussarde - und andere Greifvogelarten - werden vielfach unter dem Begriff »Stößer« zusammengefaßt und entsprechend einheitlich - als »Raub«vögel - behandelt: gefangen, erschlagen, geschossen! Die Ursache für diese nicht mehr vertretbaren Handlungsweisen finden wir in der Unwissenheit vieler. Dieser Band hat deshalb vor allem die Aufgabe, über das Erscheinungsbild, die Lebensäußerungen und das Verhalten des Mäusebussards zu informieren. Das soll mithelfen, die falsche Einstellung zum Mäusebussard zu überwinden. Zum anderen soll dieser Band zu eigener Arbeit anregen. Neben brut- und ernährungsbiologischen Problemstellungen interessieren heute vor allem Siedlungsdichteuntersuchungen in möglichst vielen Gegenden, um den derzeitigen Bestand präziser angeben und die Bestandsentwicklung insgesamt besser verfolgen zu können. ····· 10361209822
····· lezzter Preis 22.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Nachtaktive Tiere wirken selbst auf Menschen mit hoher Allgemeinbildung auch heute noch unheimlich. Wenn auch lebend an Scheunentore genagelte Eulen im 20. Jahrhundert in Mitteleuropa erfreulicherweise zur Ausnahme wurden, so haftet der Familie der Eulen, zu der der Waldkauz gehört, aber dennoch Mystisches an. Der Waldkauz ist unsere häufigste Eulenart. Als ursprünglicher Bewohner höhlenreicher lichter Althölzer brütet er - neben der nicht überall vorkommenden Schleiereule - auch oft in von Menschen errichteten Gebäuden aller Art, sofern sie ansprechende Nistmöglichkeiten bieten. Als Tages-Ruheplatz werden gern starke Äste oder große Höhleneingänge auf Bäumen an Straßen oder in Parkanlagen, auch wenn diese von Spaziergängern stark frequentiert werden, gewählt. Hier hockt der Waldkauz tagsüber in völliger Ruhe, die Augen nur zu einem schmalen Spalt, häufig aber auch weit geöffnet. Solche Anblicke sind meist die einzige Berührung vieler Menschen mit dieser Art. Der vorliegende Band soll dem Naturfreund, dessen Interesse einmal geweckt ist, helfen, Näheres über Brutbiologie, Lebensweise und die Beziehungen zur Umwelt beim Waldkauz zu erfahren. Doch die Beantwortung mancher ins Detail gehenden Frage wird er vermissen. Zum einen konnte nicht die gesamte, weit verstreute Literatur eingesehen werden, zum anderen gibt uns der Waldkauz auch heute noch Rätsel auf. Und dies soll für den ornithologisch Interessierten Ansporn sein, selbst an der Klärung solcher Probleme zu arbeiten. ····· 10361209826
····· lezzter Preis 22.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Von den Weinbergschnecken wissen viele Menschen nur, daß man sie essen kann und daß manche diese Nahrung sogar für eine besondere Delikatesse halten. Die `Escargots` der Franzosen werden jedoch auch im mitteleuropäischen Raum zunehmend als Nahrung geschätzt und ihr Verbrauch steigt an. Für den Export und für den eigenen Verbrauch sind die natürlichen Vorkommen längst nicht mehr ausreichend, und zum Schutz der Bestände wurden immer strengere Naturschutzbestimmungen erlassen. Nun versucht man Weinbergschnecken zu züchten, hat damit aber noch nicht den gewünschten Erfolg.Der vorliegende Band faßt die vorhandenen vielfältigen Kenntnisse über diese größte einheimische Gehäuseschnecken-Art verständlich zusammen, um damit manche Antwort auf häufige Fragen zu geben. Einen breiten Raum nimmt dabei die Biologie der Tiere ein (u. a. Bewegung, Ernährung, Geschlechtsleben, Entwicklung, Ruheperioden, Sinnesleistungen), immer verbunden mit morphologisch-anatomischen und physiologischen Grundlagen. Daran anschließend wird die heutige Weinbergschneckenwirtschaft besprochen, mit Sammelbedingungen, Anlage von Schneckengärten sowie Erörterungen von Zuchtmöglichkeiten. Den Abschluß bildet eine Auswahl von Koch- und Zubereitungsrezepten aus verschiedenen Ländern. ····· 10361209863
····· lezzter Preis 24.50€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ich kann nicht mehr weiter! Laßt mich doch ruhig hier liegen, wo ich bin! Ich will ja nichts mehr als sterben. Aber vorher noch einen kleinen, winzigen Schluck Wasser! Alfred Brehm hatte das Glück, bereits in jungen Jahren weite Reisen machen zu können. Er begab sich auf Expeditionen, die ihn in verschiedenste Gegenden der Welt führten. Tragisches wie Erhabenes widerfuhr im dabei, nicht nur einmal schwebte er auf seinen Reisen in Lebensgefahr. Seine Beobachtungen und Erfahrungen veröffentlichte Alfred Brehm 1863 1869 in seinem zoologischen Hauptwerk Brehms Tierleben . In diesem Werk, das erstmals 1929 erschien, erzählt Kurt Floericke in lebhaften Anekdoten von den zahlreichen Widrigkeiten und Erfolgen auf Brehms Reisen nach Afrika, Europa und Asien. Dabei erfährt der Leser wissenswertes über Brehms Forschungen und ist hautnah bei seinen zahlreichen Abenteuern dabei. Vorliegende Ausgabe ist ein hochwertiger Nachdruck der Originalschrift in Fraktur. ····· 1036174800
····· lezzter Preis 24.80€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Tigerpython ist die Traumschlange vieler Terrarianer. Sein attraktives Äußeres, die imposante Größe und das meist ruhige Temperament tragen zu dieser Beliebtheit ganz wesentlich bei. Der erfahrene Riesenschlangenhalter Henry Bellosa ist seit vielen Jahren vom Tigerpython fasziniert und teilt in diesem Buch seine umfangreichen Erfahrungen mit der artgerechten Pflege und Nachzucht dieser Riesenschlange detailliert und praxisnah mit. Dieses Buch ist die erste deutschsprachige Monographie über den Tigerpython! ····· 10361165954
····· lezzter Preis 24.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieser Band ist Teil eines vierzehnbändigen Werkes über die Vogelwelt Mitteleuropas. Es vermittelt den gesamten Kenntnisstand zur Biologie aller heimischen Vogelarten. Meisterhafte Zeichnungen, zahlreiche detaillierte Verbreitungskarten und Sonagramme ergänzen den Text. ····· 10361206188
····· lezzter Preis 24.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieser zweite Teil des Bandes 6/1 schließt direkt an den Teil 6/1A an. Es werden die weiteren Zahnwale besprochen, nämlich 9 Arten aus den Familien Ziphiidae (Schnabelwale), Kogiidae (Zwergpottwale) und Physeteridae (Pottwale). Es folgen dann die Bartenwale (Mystoceti) mit 7 Arten, zu denen auch das größte heute lebende Tier überhaupt, der Blauwal, gehört. Die Abhandlung der einzelnen Arten erfolgt wieder nach den gleichen Gesichtspunkten wie im Band 6/1A. Den Abschluß des Bandes bildet ein ausführliches allgemeines Literaturverzeichnis und ein Namenregister zu beiden Teilen des Bandes. ····· 10361206191
····· lezzter Preis 24.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieser umfangreiche Band des auf 14 Bände angelegten Werkes `Handbuch der Vögel Mitteleuropas` behandelt folgende Vogelgruppen: Tauben, Kuckucke, Eulen, Ziegenmelker, Segler, Racken und Spechte. Der Aufbau der einzelnen Artkapitel folgt wieder dem bewährten Schema: Klassifikation und Bestimmungsschlüssel, Verbreitung, Feldkennzeichen, Mauser, Lautäußerungen, Brutgebiet, Bestandsentwicklung, Wanderungen, Biotop, Siedlungsdichte, Fortpflanzung, Bruterfolg, Sterblichkeit, Alter, Verhalten, Nahrung, Literatur ····· 10361206192
····· lezzter Preis 24.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieser Band bietet ein Register zu allen in dem `Handbuch der Säugetiere Europas` behandelten Tierarten. Nach einem Register der wissenschafltichen Namen aus allen systematischen Kategorien folgt ein Register zu allen im Werk vorkommenden Trivialnamen. Daran schließt sich ein Lexikon der Namen der Säugetiere in den Sprachen Englisch, Französisch, Italienisch und Spanisch an. Den Abschluss bildet eine Zusammenfassung der gesamten Allgemeinen Literatur aller Bände. ····· 10361206201
····· lezzter Preis 24.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Feldhase gehört zu den bekanntesten und volkstümlichsten Tieren. Der Jäger kennt ihn als häufige und produktive Wildart der Feldbiotope des mitteleuropäischen Raumes. Erst der verstärkte Rückgang der Jagdstrecken in den meisten europäischen Ländern war Anregung zu einer großen Anzahl wissenschaftlicher Untersuchungen über die Biologie, Ökologie und Bewirtschaftung des Feldhasen, die unsere Kenntnisse über diese Tierart im letzten Jahrzehnt wesentlich vervollständigt und einige Lücken geschlossen haben.Der Autor des vorliegenden Bandes hat, neben eigenen Untersuchungen und Beobachtungen, das deutschsprachige Schrifttum und zahlreiche Arbeiten aus anderen Ländern ausgewertet. Es soll dadurch versucht werden, dem Leser ein möglichst vielseitiges und umfassendes Bild der Feldhasenbiologie zu vermitteln, ohne allerdings den Blick für noch offene Fragen und Probleme zu verstellen. Die Wahl des Themenkreises entspricht aber auch seiner Beliebtheit als jagdbares Wildtier, dessen Erhaltung in seinen ursprünglichen, vom Menschen zunehmend veränderten Lebensräumen, nicht nur die alleinige Aufgabe des jagdlich Interessierten ist. ····· 10361209815
····· lezzter Preis 24.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Rücksichtslose Bejagung durch den Menschen brachten die Biber in Eurasien und Nordamerika fast zum Aussterben. Um 1900 hatten sich nur noch wenige Siedlungen erhalten. Der umfassende Schutz dieser Biber und eine auf biologischen Erkenntnissen aufgebaute Zucht und Hege ließen die Biberbestände wieder ansteigen. Heute ist er keine vom Aussterben bedrohte Art mehr, obwohl er nicht in allen ehemaligen Lebensräumen wieder heimisch ist. Vor allem die im dichtbesiedelten Mitteleuropa liegenden Biotope sind nur schwach oder gar nicht besiedelt.Die Autoren arbeiteten im Woronesh-Naturschutzgebiet und untersuchten für die Reaklimatisierung geeignete Gebiete in weiten Teilen der Sowjetunion. Hier setzte man Biber aus und beobachtete über Jahre die Entwicklung der Siedlungen und ihre Beziehungen zur Umwelt. Auch die Möglichkeit einer teilweisen wirtschaftlichen Nutzung wurden erforscht. Die bei der Biberzucht im Woronesh-Naturschutzgebiet verwendeten Kanadischen Biber gaben den Autoren gute Vergleichsmöglichkeiten mit den Europäischen Bibern. Ihren Forschungen am Europäischen Biber in der Sowjetunion stellen sie die aus der Literatur bekannten Angaben über die Biber in Mitteleuropa und Nordamerika gegenüber. ····· 10361209820
····· lezzter Preis 24.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Neben den Adlern ist der Rotmilan eine der elegantesten Erscheinungen unter den segelfliegenden Greifvögeln und eine Zierde unserer Landschaft. Er ist ein überaus anpassungsfähiger Vogel, der über ein breites Nahrungsspektrum verfügt. Seit mehr als zwei Jahrzehnten stellt er seine Anpassungsfähigkeit nun auch durch Überwinterungen im mitteleuropäischen Brutgebiet unter Beweis.Sein bevorzugtes Beutetier ist der Hamster. Durch die fortschreitende Technisierung und Chemisierung der Landwirtschaft ist mit einem weiteren Rückgang der Feldnager, vor allem des Hamsters, zu rechnen. Es ist zu befürchten, daß diese Entwicklung eine negative Bestandsveränderung auch beim Rotmilan zur Folge haben könnte. Eine weitere Eigenart des Rotmilans ist das sehr kleine Verbreitungsgebiet, das sich im wesentlichen auf Mittel- und Südwesteuropa beschränkt. Aus kleinen Verbreitungsgebieten ergeben sich für eine Art immer größere Gefahren gegenüber weit verbreiteten Tierarten. Daraus wird ersichtlich, daß es eine internationale Aufgabe ist, alles zu tun, damit die Kernpopulation in Mitteleuropa ihre gesunde Reproduktionskraft behält und weiteren Generationen bewahrt bleibt. Ausführlich werden Bestandsverhältnisse, Brutbiologie, Zugbewegungen geschildert und Fragen des Schutzes diskutiert. ····· 10361209866
für 25.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Hermann von Nathusius zeigt anhand verschiedener Beispiele die Problematik bei der systematischen Bearbeitung von Schweinerassen auf. Schwachstellen in der bestehenden Rassenzuordnung werden von Nathusius offen gelegt und diskutiert, wobei Nathusius zwischen natürlichen, geographisch begründeten und künstlichen Schweinerassen unterscheidet. Für erstere präsentiert er am Ende anhand spezifischer Merkmale eine vorläufige Charakteristik, um auf diese Weise wichtige Weichen für die Schweinerassenforschung zu stellen.Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1860. ····· 10361139416
für 26.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray El propósito principal fue realizar el monitoreo participativo de mamíferos grandes y medianos con pobladores del sector El Cóndor en el Parque Munchique. Adicionalmente, se realizó el fototrampeo del oso andino para el sector La Romelia . Entre octubre del 2009 y abril del 2010 se realizó el monitoreo mediante transectos en línea seleccionados y recorridos junto a pobladores y funcionarios. De las especies registradas, Cuniculus paca fue la más abundante, seguida de los venados Mazama spp. mientras que en áreas intervenidas Didelphis marsupialis fue la más detectada. Los primates fueron las especies menos detectadas junto a Leopardus pardalis. Adicionalmente se identificó cuatro individuos del oso andino Tremarctos ornatus. Estos resultados entregaron los primeros datos poblacionales para estas especies en el área protegida. El monitoreo participativo involucró a los pobladores como realizadores, mejorando el uso y la percepción que tienen de las especies, logrando así su apoyo para futuros trabajos. ····· 103611533
für 26.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Se realizó un estudio de los aspectos reproductivos de la guacamaya verde (Ara militaris mexicana) en el Zoológico Regional Miguel Álvarez del Toro, Chiapas. El presente estudio comprendió observaciones directas de Junio del 2008 a Junio del 2009. Se obtuvo dos nidadas de la única pareja reproductora del ZooMAT, la primera nidada sin éxito de eclosión y la segunda con éxito, lográndose el nacimiento de una cría. Cada nidada estuvo compuesta de dos puestas con intervalos de tiempo en cada postura de 48 hrs a 72 hrs. Las actividades y tiempos invertidos por la pareja reproductiva fueron estadísticamente significativas. Se registró curvas de crecimiento y características principales en el desarrollo de la cría desde el segundo día de nacido hasta los siete meses de edad. Los cuidados parentales estuvieron a cargo por ambos padres, con diferencias en los tiempos de participación entre sexos para las distintas etapas (desde la incubación hasta el cuidado del juvenil). ····· 103611582
für 26.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Se determinó la estructura de una comunidad de aves en un bosque seco tropical intervenido, a través de datos de composición, abundancia, riqueza, y su variación estacional entre otros, utilizando avistamientos, captura con redes de neblina y registros fotográficos. Se identificaron un total de 159 especies, agrupadas en 15 órdenes y 41 familias. Las familias que dominan en riqueza son los Tyrannidae, Thraupidae, Accipitridae, Trochilidae y Psittacidae. Se reportan 5 especies migratorias. Este bosque forma parte de la zona protectora de la cuenca baja de los ríos Socuy Guasare y Cachiri la cual se encuentra bajo fuerte amenaza de intervención antrópica como lo es el aumento progresivo de actividades agrícolas y mineras. La presencia de especies de las familias Furnariidae y Thamnophilidae confirman el valor de conservación. ····· 103612345
für 26.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Se investigó el impacto de la caza aplicando el modelo de cosecha para el majaz (Cuniculus paca Linnaeus, 1766) y para ello se determinó la densidad poblacional, productividad reproductiva, presión de caza, sitios de caza y estacionalidad. La metodología empleda incluye observaciones directas de censos por transectos, colecta de muestras de aparato reproductor de hembras y registros de caza. Determinanda la densidad poblacional en 6.44 Ind./km², las horas de mayor actividad nocturna entre 18:00 a 22:00 horas y vespertinas entre 02:30 a 05:30 horas. De los 33 tractos reproductivos analizados 26 contenian evidencia de preñez la productividad bruta fue de 0.79 crias/hembras adultas examinadas, el promedio del tamaño de camada fue 1 cria/parto y la productividad anual de 5.09 individuos/km². La extracción fue de 150 individuos al año presentando una presión de caza anual de 0,3 individuos/ km2. Finalmente, el modelo de cosecha indica que la caza de esta especie es sostenible en la cuenca alta del rìo Itaya. ····· 103613102
für 26.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray El botete diana (Sphoeroides annulatus) es una especie de potencial interés en la acuicultura, debido a su tolerancia al manejo en condiciones de cautiverio, su alto precio en el mercado mexicano y la calidad y sabor de su carne. Los huevos del botete diana miden aproximadamente 0.71 mm de diámetro, son esféricos, transparentes y con una capa adhesiva, que les permite adherirse a diferentes sustratos. En condiciones de cultivo, esta característica adherente del huevo representa un problema durante la incubación, ya que se aglutinan entre ellos en forma de racimos, impidiendo la oxigenación a los que quedan al interior de éstos, provocando una alta mortalidad de huevos. Mediante el uso de productos naturales y químicos esta capa puede disolverse, además la aplicación de desinfectantes para reducir la carga bacteriana y la incubación en un sistema apropiado, se logra aumentar los porcentajes de eclosión y la supervivencia de las larvas. En el presente trabajo se presentan avances en cuanto a la optimización de diversos métodos, para garantizar la obtención de un gran número de juveniles para su engorda. ····· 1036122047
····· lezzter Preis 26.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray En las sociedades de primates con alto grado de fusión-fisión, como es el caso de los monos araña, los patrones de asociación entre individuos podrían ser un reflejo de los patrones de las interacciones sociales. Sin embargo, poco se ha estudiado para detectar esta relación. Esta investigación pretende aportar nuevos conocimientos acerca de las relaciones sociales en los monos araña, en función de los patrones obtenidos entre todos los individuos adultos y subadultos de un grupo en estado silvestre, asi como la tasa de sus interacciones afiliativas y agonísticas. Además, se determinará la relación existente entre los índices de asociación y las interacciones sociales, lo que contribuirá a mejorar el entendimiento acerca de las dinamicas de fusión-fisión en grupos que se desarrollan en vida libre ····· 1036122958
····· lezzter Preis 26.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray En la Reserva de la Biosfera de Calakmul se georeferenciaron 71 cuerpos de agua localizados en la zona de la selva e interior de la misma y se realizaron colectas de peces utilizando diversas artes de pesca. Se registraron un total de 31 especies incluidas en 21 géneros, 6 familias y 6 órdenes. Conjuntamente con el muestreo, se registraron los parámetros hidrológicos (temperatura, salinidad, conductividad, y oxígeno) y se tomaron fotografías de ejemplares vivos o recientemente recolectados como material de apoyo para su correcta identificación. De los registros obtenidos, la familia Cichlidae es la que está representada con el mayor número de géneros (6) y especies (13), siguiéndole en importancia la familia Poeciliidae con 7 géneros y 11 especies. Considerando su abundancia numérica y en peso, así como la frecuencia de ocurrencia, se determinaron como especies dominantes a Astyanax aeneus, Poecilia mexicana, Gambusia sexradiata, Thorichthys meeki, Rhamdia quelen y Rocio octofasciata. Esta información junto con el registro del peso, longitud estándar, sexo en ejemplares de poecilidos, así como la coloración y hábitat se incorporaron a la base de datos del sistema BIÓTICA. ····· 1036123630
für 26.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Uno de los mayores problemas con los que se encuentran actualmente los alcornocales es la denominada `Seca`.Dentro de las plagas que actúan como factores para esta enfermedad, merecen una atención especial por la importancia de los daños que generan,son las especies del género Cerambyx y otros géneros de vida similar. Se les puede considerar como otro de los factores derivados de esta desconocida multienfermedad, en la que los hongos provocan un decaimiento generalizado en los Quercus y vuelven al árbol propenso a la entrada de escarabajos perforadores y comedores de madera como estos insectos. Debido a los daños que esta plaga provoca en el arbolado, en nuestro caso en Quercus suber, los objetivos perseguidos en el presente trabajo son los siguientes: -Ofrecer un porcentaje aproximado de la pérdida de corcho ocasionada por los cerambícidos. -Evaluar, con los datos actuales del mercado, las pérdidas económicas que se han producido en el corcho por acción de los cerambícidos. ····· 10361116489
für 26.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray El manual prácticas de campo que se propone familiarizá a estudiantes e investigadores con los animales no cordados y con los hechos y fenómenos que se presentan en la naturaleza y la sociedad y de la interacción entre ambas, al estar el hombre en estrecha relación con el medio ambiente, contribuyendo de esta manera a la educación estética de los individuos y a desarrollar en ellos el amor al medio que les rodea y su protección. Con la puesta en práctica del manual en la naturaleza, se promueve una participación activa del que lo emplea en el campo de la investigación zoológica, favoreciendo en los estudiantes, profesores y demás personas interesadas en conocer el mundo de los no cordados, el desarrollo de emociones, sentimientos, hábitos y habilidades. ····· 10361136131
für 26.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Las zonas de transición son áreas geográficas que representan eventos de hibridación biótica, promovida por cambios histórico-ecológicos que permiten la mezcla de componentes bióticos diferentes. Halffter (1962, 1987) definió la Zona de Transición de México (ZTM) como un área compleja y variada, donde elementos bióticos Neotropicales y Neárticos se superponen. De acuerdo a Morrone (2006) la ZTM incluye el suroeste de Estados Unidos, México y gran parte de América Central extendiendose a las tierras bajas de Nicaragua. Con el propósito de conocer los límites geográficos de la ZTM utilizando escarabajos Lamellicornios y empleando métodos de biogeografía histórica se construyó una base de datos para 56 especies de las subfamilias Scarabaeinae y Geotrupinae con un total de 1714 presencias para México y América Central. Se modelaron las distribuciones potenciales y se obtuvieron las áreas de endemismo utilizando NDM/VNDM (Goloboff, 2005) encontrándose los patrones que confirman la existencia de una ZTM así como también los límites geográficos de esta zona de interacción biótica. ····· 10361136812
····· lezzter Preis 27.50€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Kaum eine andere Insektengruppe ist derart volkstümlich wie die Heuschrecken. Wer kennt nicht die Berichte von (heu)schrecklichen biblischen Plagen, liebt nicht das heimelige Trillern der Grillen am Feldrain oder hat nicht als Kindheitserinnerung das Gewusel der Heuhüpfer in unseren Wiesen gespeichert Heuschrecken besiedeln im Alpenraum von den Tieflagen bis an die Schneegrenze ein weites Spektrum von Lebensräumen, darunter viele bedrohte Biotope wie Moore, Wildflüsse oder blütenreiche Bergmähder und Trockenrasen. Die hohen Ansprüche der Heuschrecken an Klima und Standortbedingungen machen sie zu Zeigern für Effekte der Klimaerwärmung und zu wichtigen Instrumenten des Naturschutzes und des Biodiversitätsmonitorings. Der renommierte Tiroler Biologe Armin Landmann legt hier unter Mitwirkung des bekannten Heuschreckenkundlers Thomas Zuna-Kratky eine umfassende Analyse der Lebensräume, Bestands- und Arealmuster und der Gefährdung der Heuschreckenarten Tirols vor. Mit einer reich bebilderten Einführung in die Biologie dieser vielfältigen und bunten Insekten, mit übersichtlichen, allgemeinen Artsteckbriefen und einer Vielzahl prächtiger Farbfotos der Arten und ihrer Lebensräume richtet sich das Werk aber bei weitem nicht nur an den Spezialisten und Naturschutzpraktiker, sondern auch an jeden Naturliebhaber und heimatkundlich Interessierten. ····· 1036149357
für 27.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In den Jahren vor dem Ersterscheinen von J. G. Fischers Werk herrschte bezüglich der Zuordnung verschiedener Wasserschlangentypen noch Chaos und Unsicherheit. Um möglicherweise fingierte Formen auszuschließen und zudem neu gefundene Gattungen vor der Vergessenheit zu bewahren, hat sich J. G. Fischer einer Revision der Familie der Seeschlangen angenommen. Hierzu erläutert Fischer zunächst ihre zoologischen Charaktere eingehender, bevor er seinen Fokus auf eine systematische Beschreibung der Seeschlangen legt.Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1855. ····· 10361139319
für 28.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ein Dreivierteljahr hat der Naturforscher und Naturfreund Kurt Floericke (1869 1934) auf den Kanarischen Inseln zugebracht. Genutzt wurde diese Zeit von ihm für eine ausgiebige Erforschung der dort heimischen Vogelwelt. Seine Ergebnisse - die sich um mehr als nur den Kanarienvogel drehen - sind hier detailliert aufbereitet.Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1905. ····· 10361139437
für 29.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ernst Haeckel (1834 1919) war ein deutscher Zoologe, Philosoph und Freidenker. In seinem hier vorliegenden Werk hat er sich den Protisten angenommen. Er beschreibt diese ein- bis mehrzelligen Lebewesen und ihren Lebensraum. Am Ende findet sich ein System, in dem die Protisten verschiedenen Klassen zugeordnet sind.Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1878. ····· 10361139377
für 29.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Die stetig zunehmende Terrarienliebhaberei hat auch vor fremdländischen Kriechtieren und Lurchen nicht halt gemacht. Aus ihr folgte jedoch auch eine Erweiterung des Wissens um Lebensraum und Verhalten dieser Tiere. Der Naturforscher und Naturfreund Kurt Floericke (1869 1934) nun stellt ausgewählte Tiere dieser Art vor und führt in ihre Lebenswelten ein.Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1912. ····· 10361139476
für 29.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Furchtbar zugleich und fruchtbar ist das Meer , mit diesen Worten beginnt dieses Buch. Schon im Altertum war die Schmackhaftigkeit der vielen Fischarten bekannt. Hier lesen wir über das Leben der Meeresfische, ihre Besonderheiten und den Fang. Frische Fische gute Fische .Mit zahlreichen Abbildungen. Ein sorgfältiger überarbeiteter Nachdruck der Originalausgabe von 1914. ····· 10361139535
····· lezzter Preis 29.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Eckstein beschreibt in diesem Buch die Schmetterlinge Deutschlands. Nachdruck des Originals von 1915. ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· 10361150657
····· lezzter Preis 29.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Warum können Vögel singen Dieses wunderbare Werk aus dem Jahre 1900 erklärt es ebenso wissenschaftlich wie verständlich und empfiehlt sich damit nicht nur für den Wissenschaftler, sondern ganz besonders auch für den Vogelbeobachter. ····· 10361172643
····· lezzter Preis 29.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Brauchen Fische Schlaf Kennen sie ein Durstgefühl Diese und andere Fragen klärt Dr. Kurt Floericke mit leicht verständlicher Sprache in seiner ausführlichen Übersicht über Süßwasserfische. Mit zahlreichen Zeichnungen und Fotografien. Nachdruck der Originalausgabe von 1913. ····· 10361172854
····· lezzter Preis 29.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Das Eichhörnchen ist wohl das volkstümlichste unter den einheimischen Wildsäugetieren. Fast überall wo Bäume wachsen, kann man ihm begegnen. Selbst in der Stadt kann es wenige Schritte vor einem über die Straße huschen. Jedoch werden die meisten Menschen zugeben müssen, über die Biologie des Tierchens recht wenig zu wissen. Es ist daher das Ziel des Bandes, allen interessierten Lesern näheres über die Lebensweise und überhaupt alles Wissenswerte über das Eichhörnchen zu berichten. Der Forstmann sieht in dem Eichhörnchen einen Forstschädling erster Ordnung. Nicht nur, daß es die Samen der Bäume frißt, es verbeißt auch die Knospen und jungen Triebe, mit Vorliebe schält es die Rinde junger Bäume. So schädlich das Eichhörnchen ist, möchten wir es doch nicht im Gesamtbild unseres Waldes missen. ····· 10361209816
····· lezzter Preis 29.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Elch, der größte unter den rezenten Hirschen, war von jeher eines der charakteristischsten Tiere der russischen Wälder und ist in Sibirien schon in prähistorischer Zeit, vor dem Rentier, domestiziert worden. Sein Verbreitungsgebiet umfaßte die gesamte Waldzone Europas, Asiens und Nordamerikas. Heute bewohnt er vor allem Tundragebiete und Waldsteppen in Nordamerika und Nordeuropa. In seiner Morphologie ist er besonders auf das Leben im Walde und auf Strauchnahrung spezialisiert, aber auch an die Fortbewegung im Sumpf oder im hohen Schnee. Der Elch unternimmt jahreszeitliche Wanderungen und hat die Fähigkeit, sich schnell an neue Lebensräume anzupassen.Nachdem der Elch nach der Jahrhundertwende infolge zu intensiver Bejagung sehr zurückgegangen und im europäischen Raum dem Aussterben nahe war, hat sich die Art nach der Unterschutzstellung sehr erholt und sich ungeahnt vermehrt, so daß der Elchbestand in Eurasien zur Zeit höher ist als jemals in den letzten 200 Jahren. In jüngster Zeit werden auf einer hierfür eingerichteten Farm Versuche unternommen, den Elch wieder zu domestizieren, um ihn als Milch-, Schlacht- und Arbeitstier und in unwegsamen Gegenden als Reit- und Lasttier nutzen zu können. Der Erfolg wuchs im Laufe der Jahre mit den gewonnenen Erfahrungen, und gerade bei gezähmten Elchen konnte die Biologie der Tiere genauestens erforscht werden. ····· 10361209819
····· lezzter Preis 29.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Schwäne sind als Bewohner der Parkgewässer bekannt, in Wirklichkeit wissen wir aber nur wenig aus ihrem so interessanten Leben. Besonders die Eigenarten und Gewohnheiten der in den Einöden und Tundren des hohen Nordens wohnenden Sing- und Zwergschwäne sind uns bislang in vielem unbekannt geblieben. Unter Einbeziehung der Forschungsergebnisse bis 1970 gibt Alfred Hilprecht eine umfassende Übersicht über die Lebensweise, das Verhalten und die Brutbiologie der drei in Europa vorkommenden Wildschwanarten. Mit Hilfe der inzwischen vorliegenden umfangreichen Beringungs- und Beobachtungsergebnisse wird eine Darstellung des Zugverhaltens dieser Vögel gegeben und es werden letzte Schlüsse gezogen. Über die 1. Auflage schrieb Günther Niethammer in den `Bonner Zoologischen Beiträgen`: `Die Schwäne werden von einem Kenner behandelt, der seine bedeutenden eigenen Erfahrungen mit diesen Vögeln und ein großes und gut ausgewähltes Schrifttum zu einem wohlabgewogenen Ganzen zu gestalten weiß und damit dem Naturfreund einen ausgezeichneten Einblick in das Leben und Vorkommen dieser Großvögel gibt.` Und Erwin Stresemann bemerkt im `Journal für Ornithologie`, das Büchlein rage `durch die Vielfalt der erörterten Gesichtspunkte, gründliche Berücksichtigung der Literatur und viele eigene Zutaten hervor` und würde `auch von der anspruchsvollen Fachwelt als eine Bereicherung unseres Schrifttums begrüßt werden`. ····· 10361209821
····· lezzter Preis 29.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Das Verbreitungsgebiet des Seeadlers erstreckte sich in Europa von Skandinavien bis zur Balkanhalbinsel und bis zum Ural. In Mitteleuropa waren diese markanten Vögel in allen zusagenden Landschaften zu finden. Bis weit ins letzte Jahrhundert hinein wurde ihnen nachgestellt, sie wurden geschossen und in Fallen gefangen, die Eier geraubt, die Jungen ausgehorstet. Rechtzeitig genug fanden sich verantworungsbewußte Naturfreunde, die sich für den Schutz des Seeadlers einsetzten. Langsam wurden es wieder mehrere Brutpaare, als die erste Auflage des Bandes von Wolfgang Fischer erschien. Jetzt liegt die vierte wesentlich überarbeitete Auflage als Nachdruck vor, und hier ist es dem Verfasser bereits möglich, auf gute Erfolge bei der Entwicklung der Bestandszahlen der Tiere aufgrund des Schutzes hinweisen zu können. Die intensive Beschäftigung mit den Tieren brachte aber auch neue Erkenntnisse.Der Band beschreibt in erster Linie die Nominatform des nördlichen Eurasiens, die in der Neuen Welt, Afrika und Asien vorkommenden Arten sind entsprechend unserem Kenntnisstand behandelt, dabei wurden vom Verfasser viele eigene Beobachtungen der Tiere in der freien Wildbahn und in der Voliere des Tierparks Berlin verarbeitet. ····· 10361209823
····· lezzter Preis 29.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Zwergkärpflinge (Heterandria formosa) gehören trotz ihres eher schlichten Farbkleides und der geringen Größe zu den faszinierendsten Aquarienbewohnern überhaupt. Vor allem ihre Fortpflanzungsbiologie ist hochinteressant. Die nur 2 cm großen Männchen verteidigen kleine Reviere und imponieren sich gegenseitig mit bis zum Zerreißen angespannten Flossen. Sie begatten die etwa ein Drittel größeren Weibchen mit einem speziellen, sehr beweglichen Begattungsorgan, dem sogenannten Gonopodium. Es folgt eine außergewöhnliche Trächtigkeit, während der die Weibchen ihre unterschiedlich weit entwickelten Embryonen mit Nährstoffen versorgen. Nach einer mehrwöchigen Tragzeit gebären sie nur wenige, sofort selbstständige Jungfische. Im Abstand weniger Tage folgen immer wieder einige Geschwister.Michael Kempkes beschreibt in seiner Monografie die Zwergkärpflinge in allen Facetten. Es sind hinreißende, ohne großen technischen Aufwand zu haltende Pfleglinge und zugleich lohnenswerte Studienobjekte, deren Verhalten sowohl Aquarianer als auch Biologen in ihren Bann zieht. Aus dem Inhalt - Systematik und Morphologie - Natürliches Verbreitungsgebiet - Verhalten und Fortpflanzung - Haltung und Vermehrung im Aquarium ····· 10361209831
····· lezzter Preis 29.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Eurasian red squirrels have an innate appeal and are one of our most popular mammal species. They live in forests, share our parks and gardens and mesmerise us with their cute, captivating and endearing behaviour. The current volume offers an up-to-date overview of all aspects of red squirrel biology together with an extensive bibliography of published books, articles and research papers. The detailed and illustrated chapters provide a window into the hidden life of red squirrels and their fascinating ecology, population dynamics and behaviour. The book integrates material, research findings and images from across the red squirrel`s Eurasian range, with particular attention being given to conservation efforts, favourable forest management options and the threat posed by the Eastern gray squirrel (also referred to as `grey squirrel` in Europe). The latter has been responsible for devastating population declines of native red squirrels in the UK, Ireland and Italy and is likely to invade Switzerland and France in the near future.LANGUAGE: English ····· 10361209837
····· lezzter Preis 29.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The common or hazel dormouse is an index species of species-rich woods and groves. Its ability to hibernate has fascinated the naturalists of all times. Until recently, however, little was known about the biology of the dormouse due to its secret habits. In the last decades researchers began to deal with the dormouse more thoroughly, particularly because of its relevance in nature conservation. Showing a strict preference for woodland, the hazel dormouse is especially vulnerable to habitat destruction. Exact knowledge of its biology and its ecological requirements are a prerequisite for the conservation of our smallest indigenous dormouse species. In this first German monograph of the fascinating hazel dormouse the authors present their results of more than 25 years of field research and examine them in the context of the international dormouse literature. LANGUAGE: English ····· 10361209838
····· lezzter Preis 29.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ameisenlöwen sind die Larven der Ameisenjungfern (Myrmeleonidae), die der Ordnung der Netzflügler (Neuroptera) angehören. Weltweit sind etwa 2000 Ameisenlöwen-Arten bekannt, die Mehrzahl davon kommt in den trockenheißen Regionen der Erde vor. In Mitteleuropa gibt es 17 Spezies, wovon aus Deutschland, Österreich und der Schweiz lediglich 9 bekannt sind.Unser `Gewöhnlicher Ameisenlöwe` (Myrmeleon formicarius) ist 3 bis 17 mm lang und ein perfekter Fallensteller. Ihn direkt zu sehen ist schwierig, lebt er doch im Sand versteckt am Grund eines kreisrunden Trichters. Tagelang wartet er dort regungslos, bis eine Ameise über den Rand seiner Sandfalle rutscht. Dann schnappen seine gezähnten Kiefer in Bruchteilen von Sekunden zu und ziehen die zappelnde Beute in die Tiefe. Der bizarr aussehende Räuber ist Inhaber mehrerer ökologischer Rekorde. Er kann monatelang hungern, erträgt Umgebungstemperaturen von über 50° C und schleudert kleine Steinchen mit dem Mehrfachen seines Körpergewichts. Nach fast zwei Jahre währender Fallenstellerei spinnt die erwachsene Larve im Sand einen Seidenkokon, dem im Sommer eine libellenähnliche Ameisenjungfer entschlüpft. Ameisenjungfern flattern in unruhigem Flug vor allem des Nachts in trockenheißen Gebieten umher und verzehren kleine Fluginsekten. Der Ameisenlöwe wurde zum Insekt des Jahres 2010 erwählt. Dem gestiegenen Interesse entsprechend wurde die dritte Auflage des vorliegenden Bandes deutlich ausgeweitet und im Umfang fast verdoppelt. Herausgekommen ist ein informatives und verständliches Werk über eine mystisch anmutende Insektengruppe, das sowohl interessierten Laien als auch Entomologen einen umfassenden Überblick über den neuesten Wissensstand bietet - mit Schwerpunkt Mitteleuropa, aber auch weltweit. ····· 10361209864
····· lezzter Preis 29.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Graureiher ist der einzige Vertreter der stammesgeschichtlich alten, artenreichen Familie der Reiher, der außer Rohrdommel und Zwergrohrdommel auch in Deutschland Brutvogel ist. Er begeistert jeden Naturfreund immer wieder als eine der letzten Großvogelarten, die unserer Heimat erhalten geblieben sind. Ehedem als Beizwild der `Hohen Jagd` weltlicher und geistlicher Fürsten vorbehalten und den Schutz ihrer Gunst genießend, wurde der Graureiher zu anderen Zeiten zum Fischdieb erniedrigt und gnadenlos verfolgt bis zum Verschwinden in manchen Landschaften. Das vorliegende Buch gibt einen Überblick über die Lebensweise des Graureihers, aufbauend auf dem neuesten Stand der Beobachtungen, Untersuchungen und Beringungsergebnisse. Es möchte als sachlicher Ratgeber bei Auseinandersetzungen der verschiedenen Interessenrichtungen dienen, bei der Begründung gesetzlicher Bestimmungen und bei Maßnahmen des Naturschutzes behilflich sein. ····· 10361209865
····· lezzter Preis 30.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Die »Hamburgische Angola-Expedition 1952 - 1954« war die erste große zoologisch-völkerkundliche Sammelreise nach dem Zweiten Weltkrieg, die von der Hansestadt ausging. Eine große Zahl Hamburger Wissenschaftler stand hinter der Idee. Hamburg fühlte sich als weltoffene Stadt, die neben ökonomischen immer schon kulturelle und wissenschaftliche Beziehungen zu überseeischen Ländern unterhalten hatte, verpflichtet, diese Beziehungen nach dem Krieg wieder aufzunehmen. Die Hamburger Zoologie war besonders an der Expedition interessiert, da das alte Zoologische Museum im Krieg zerstört und ein Großteil der Sammlungen unwiederbringlich verloren war. Hier sollte so schnell wie möglich Ersatz geschaffen werden.Zwei junge Männer boten an, sich auf die nicht ungefährliche Sammelexpedition einzulassen: Werner Trense und Gustav Adolf Baron von Maydell. Beide waren passionierte Jäger, die sich vermutlich auch von der Aussicht auf ein spannendes Jagdabenteuer motivieren ließen. Das Ziel der Expedition: Angola, ein Land, in dem alle typischen afrikanischen Landschaften in erreichbarer Entfernung zueinander liegen. Reinmar Grimm zeichnet die erfolgreiche Expedition fast 70 Jahre später nach und würdigt den Einsatz, der zu ihrer reichhaltigen Ausbeute führte. ····· 1036162204
für 30.80€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Auf 167 Farbfotos und in kurzen Texten werden 57 Libellenarten und deren Lebensräume in Natura 2000-Gebieten der Westmecklenburgischen Seenlandschaft, einschließlich des Biosphärenreservates Schaalsee, des EU Vogelschutzgebietes Schweriner Seen und des Naturparks Sternberger Seenland vorgestellt. Auch die bisher bekannte Libellenfauna der Landeshauptstadt Schwerin wird kurz beschrieben. Um der weltweiten Bedrohung der biologischen Vielfalt entgegen zu wirken, ist es notwendig, insbesondere auch auf lokaler und regionaler Ebene ausgewählte Tier- und Pflanzengruppen langfristig zu beobachten und geeignete Schutzmaßnahmen zu ergreifen. Ein kleiner Beitrag zur Auseinandersetzung mit diesem Problem wird hier anhand der Insekten-Ordnung der Libellen (Odonata) vorgestellt, die sich u.a. durch eine überschaubare Artenzahl, eine interessante Biologie und viele auf unterschiedliche Lebensraumtypen spezialisierte Arten auszeichnet. Dieses Buch gewährt naturkundlich interessierten Laien und Experten Einblicke in die bisher bekannte Vielfalt der Libellenfauna der Westmecklenburgischen Seenlandschaft. ····· 10361107454
für 30.80€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Wie Sie dem Programm entnehmen können, werden beide Tagungen im für die jeweiligen Gesellschaften gewohnten Rhythmus ablaufen. Hier in Wuppertal werden die Phykologen und die Protozoologen das erste Mal an einem gemeinsamen Tagungsort stattfinden. Im Anschluss an die Phykologen tagen die Protozoologen. Beide werden durch einen Workshop am Mittwochnachmittag miteinander verknüpft. Der erste Teil des Workshops wird sich in einem Vortrag über aktuelle Bemühungen zum BioCode mit einem nicht nur für Taxonomen und Phylogenetiker aller Richtungen bedeutenden Thema befassen. Anschließend gibt es sechs Vorträge zum DNA-Barcoding mit Podiumsdiskussion, in der auch gerne über Ihre Erfahrungen diskutiert werden kann. ····· 10361107483
····· lezzter Preis 32.31€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Birds of prey had a large home range and inhabit areas which were far away from human access. It was difficult to estimate their population as they were distributed over large area. Kites (Milvus migrans) often gathered in large communal roosts during migration and at the site where food was abundant and breeding colonies. The present study was done to estimate the population of kites in Lahore District. Roost Count Method was used for population estimation. Four sites were visited and there population was estimated, it was found that an average of 356 kites were present on an average at any roost. ····· 1036124512
····· lezzter Preis 32.31€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book entitled Freshwater Reservoir is an outcome of the research and teaching experience of the author to make their sincere afford to make the subject simple for the reader. I hope that the book will be useful to the reader. The book contains the freshwater aquatic ecosystem. The aquatic environments host a rich variety of organisms and are a wonder to behold through a microscope. In aquatic environments such as ponds, lakes, rivers and oceans innumerable living beings have unicellular organism s home. We will consider mainly the freshwater environment, and in particular stagnant waters, which are among the richest environments in terms of life forms. By taking small samples of water, it is possible to observe microscopic organisms which consist of only one cell and also miniscule or even microscopic multicellular organisms. The aquatic environments host a rich variety of organisms and are a wonder to behold through a microscope. In aquatic environments such as ponds, lakes, rivers and oceans innumerable living beings have unicellular organism s home. ····· 1036125227
für 32.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Schweizer Zoologe Friedrich Zschokke gibt im vorliegenden Band einen Überblick über das Phänomen des Fliegens im Tierreich. Dabei beschreibt der Autor Vorkommen und Formen, Ursprünge und Bedeutung der Fähigkeit zum Fliegen. Nachdruck der Originalausgabe aus dem Jahr 1919. ····· 10361138468
····· lezzter Preis 32.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In `Vögel auf der Reise` ergründet der Naturkundler, Ornithologe und Schriftsteller Kurt Floericke die Ursachen und Bedingungen für den Vogelzug. Das erstmals 1928 veröffentlichte Werk ist nicht nur für Vogelkundler nach wie vor interessant, sondern auch für die naturhistorische Forschung von Bedeutung. Nachdruck der Originalausgabe. ····· 10361172896
für 33.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Es ist eine besondere Gruppe an Sauriern, die sich der Anatom Max Fürbringer (1846 1920) herausgreift und näher betrachtet. Fürbringer untersucht die schlangenähnlichen Saurier auf ihre Knochen und Muskeln der Extremitäten hin. Herausgekommen ist eine vergleichend anatomische Abhandlung, die dem Leser diese speziellen Geschöpfe näher bringt.Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1870. ····· 10361139276
für 33.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Professor Dr. Adolph Eduard Grube beschreibt in diesem Buch sehr ausführlich seine Studien des Seegetiers der nördlichen Adria bei Triest und dem Quarnero in Form eines Tagebuches. Oft fährt er gemeinsam mit den Fischern aufs Meer hinaus, um beim Fang dabei zu sein. Denn das Meeresgetier, welches sich nicht verkaufen lässt, wird oft sofort ins Meer zurück befördert. So kann er auch genau feststellen, in welchen Tiefen sie gefangen wurden.Selbst auf den landestypischen Fischmärkten kauft er die Frutti di Mare und das nicht nur, um sie zu genießen, sondern auch um davon Präparate zu erstellen. Nachdruck der Originalausgabe aus dem Jahr 1861. ····· 10361139532
····· lezzter Preis 34.80€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Welche Nester bauen die einzelnen Vogelarten und aus welchem Material Wie sehen die Eier aus und wie viele legen sie Wie verläuft die Entwicklung der Nestlinge Diese und zahlreiche andere Fragen zur Brutbiologie der europäischen Vögel beantwortet dieser Feldführer, der damit die gängigen Vogelführer ergänzt, die sich ausschließlich auf adulte Vögel beziehen. Die Abbildungen zeigen typische Nestformen, über 150 Jungvögel sowie die verschiedenen Formen und Farben der Eier. Für denjenigen, der Brutvögel in ihrem Lebensraum schützen will, ist dieses Buch ein unentbehrliches Rüstzeug, da nur die genaue Kenntnis der Neststandorte und der Brutbiologie einen wirkungsvollen Schutz ermöglicht. ····· 10361206200
····· lezzter Preis 34.80€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Das Federkleid der Vögel ist eine der faszinierendsten Erfindungen der Natur. In diesem Buch gibt der Autor einen Überblick über den Bau und die Funktion der Feder sowie des gesamten Gefieders. Einzelne Kapitel widmen sich den verschiedenen Kleidern, der Mauser, den Gefiederparasiten und -krankheiten. Neben der Gefiederkunde führt der Autor auch in die Rupfungskunde ein, indem er praktische Hinweise zu Fundstellen sowie zum Anlegen einer Federsammlung gibt. Ein Bestimmungsschlüssel, mit dem über die Federn die Ordnungen und Familien der Vögel Europas bestimmt werden können, rundet das Buch ab.Wer immer sich für Vögel und ihr Federkleid interessiert, findet mit dieser Einführung den richtigen Einstieg. Die `Einführung in die Gefieder- und Rupfungskunde entspricht inhaltlich Band 1 des `Handbuchs der Gefiederkunde europäischer Vögel` und wurde korrigiert sowie um ein Kapitel mit Hinweisen zu weiterführender Bestimmungsliteratur ergänzt. ····· 10361206202
für 34.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Naturforscher Rudolf Dittrich präsentiert im vorliegenden Band eine Übersicht der Erkenntnisse über das Phänomen der Biolumineszenz zu Lande und zu Wasser. Dabei geht er auf den Aufbau und die Funktionsweise der Leuchtorgane, die Eigenschaften des Lichts und die Ursachen und Auslöser für das Leuchten ein. Nachdruck der Originalausgabe aus dem Jahr 1888. ····· 10361138469
····· lezzter Preis 34.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Köcherfliegen gehören zu den Insekten, deren Larven im Wasser und deren Imagines an Land leben. Sie sind Wanderer zwischen zwei Welten und in besonderem Maße sowohl der aquatischen Lebensweise als auch dem Leben in der Atmosphäre angepasst. Die verschiedenen Mechanismen der Anpassungen machen neugierig. Sie näher kennenzulernen ist das Ziel dieses Buches.Larven bauen zum Schutz Köcher aus Steinchen, Pflanzenteilen und Schneckengehäusen oder spannen Netze, in denen sich Nahrung verfängt andere sind räuberisch. Gemeinsam sind allen Larven und Puppen die Atmung im Wasser und die notwendige Überwindung der Osmose. Die adulten Tiere besitzen die Fähigkeit zu fliegen, oft in großen Schwärmen, wenn der Tag in die Nacht wechselt. Schwarmflüge sind Hochzeitsflüge, in denen sich Pheromon gesteuert die Paare finden, deren Weibchen schon bald im Gewässer oder in Gewässernähe Eiergelege absetzen. Der nächste Entwicklungszyklus beginnt. Die Neugierde, die diese Kenntnisse schafft und unser Wissen bereichert, hat eine Geschichte, die weit zurückreicht, mindestens bis zu den Griechen und Römern. Es ist interessant zu erfahren, wie über die Jahrhunderte nicht nur das allgemeine Wissen, sondern auch die Kenntnis über diese Insektenordnung wächst. So beginnt die Darstellung der Köcherfliegen in diesem Buch mit einer kurzen Geschichte der Trichopterenforschung. Aus dem Inhalt: Kurze Geschichte der Trichopterenforschung Entwicklungszyklus der Köcherfliegen Anpassungsmechanismen der Larven an das Leben im Wasser Flugzeiten und Schwarmverhalten der adulten Köcherfliegen Kurze Beschreibung der europäischen Familien ····· 10361209848
····· lezzter Preis 34.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Die Wasseramsel ist ein außergewöhnlicher Singvogel: Sie kann fliegen, schwimmen und tauchen. In schnell strömenden Gewässern taucht sie mit kräftigen Flügelschlägen bis zum Grund, um kleine Wassertiere zu suchen. Diese Lebensweise ist einmalig unter den an Bächen lebenden Vogelarten. Das Buch thematisiert die komplexe ökologische Anpassung der Wasseramsel an ihren Lebensraum, der sich durch die gestaltende Kraft des Wassers ständig verändert. Das erfordert von ihr hohe Flexibilität und setzt spezielle Anpassungen in Körperbau, Verhalten und Ernährung voraus. Besonders ausführlich werden Leben und Bedingungen unter Wasser betrachtet - mit einmaligen Fotos der Tauchkünstlerin und mikroskopischen Aufnahmen ihrer Beutetiere. Moderne Röntgenbilder eröffnen neue Einblicke in den Körper- und Knochenbau des Vogels. Diese Monografie bietet eine deutschsprachige Gesamtschau bekannter sowie neuer, bisher nicht in deutscher Sprache veröffentlichter Erkenntnisse und faszinierender Aspekte zu Themen wie - Abstammung und nächste genetische Verwandtschaft - Verbreitung und Mischbruten der nordischen und mitteleuropäischen Unterart - einzigartiger Körper- und Knochenbau bezüglich der Flug- und Tauchfähigkeit - Lebensraumnutzung im Vergleich zu anderen bachbewohnenden Vogelarten - Einflüsse auf den Bestand durch Umweltgifte, Luftverschmutzung, Gewässerbau, Wasserkraftnutzung und Klimawandel Wasseramseln zeigen uns als Indikatorart mit ihrer An- oder Abwesenheit, wie es um die Qualität ihres Lebensraumes bestellt ist. Deshalb ist das Buch auch ein Plädoyer für Schutzmaßnahmen. Es mahnt einen behutsamen Umgang mit unseren Gewässern an und stellt Möglichkeiten zur Gestaltung des Lebensraumes der Wasseramsel vor. ····· 10361209857
für 35.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Las aves constituyen un grupo taxonómico muy diverso y relevante por considerarse indicadores biológicos del estado de conservación de los ecosistemas. Siendo Colombia un país con abundante riqueza de especies, son pocos los estudios realizados para este taxón en el Caribe colombiano y en particular para el departamento de Sucre. El presente estudio, surge de la necesidad de obtener información precisa y oportuna sobre la ecología de las aves y sus hábitats que contribuyan a implementar estrategias para su conservación. La composición y distribución espacial de la comunidad de aves del arroyo El Sereno, esta conformada por 141 especies, distribuidas en 38 familias y 17 órdenes, presentándose en Sereno bajo mayor riqueza de especies (122) en comparación con Sereno alto (64). Del total de los 8 gremios alimentarios encontrados, los insectívoros estuvieron mejor representado por la familia Tyrannidae y las especies migratorias constituyeron el 10.6% del total de especies registradas. Es posible que las especies respondan de diferentes formas al grado de transformación del hábitat, a ligeros cambios altitudinales, variación de la vegetación y disponibilidad de recursos en el ambiente. ····· 103611654
für 35.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray La importancia de esta primera compilación sobre Typhlonectes natans estriba en la necesidad actual de concentrar en un solo manuscrito los datos dispersos en la literatura especializada sobre este anfibio. Así, se dan a conocer varios aspectos de la biología de esta especie de hábitos acuáticos y subterráneos. Dentro de los datos recopilados e inéditos del presente escrito están los reportes sobre algunos predadores, factores ambientales estresantes y amenazas, información nueva de su termobiología y una metodología para determinar el sexo de este Gymnophiona, entre otros. Además, se hacen reportes de la morfología, histología y bioquímica sanguínea y se sugieren nuevos rangos de su distribución geográfica (espacial y altitudinal) para Colombia, así como algunas pautas de manejo. También es propuesta una nueva revisión del estado de conservación de las poblaciones de T. natans, basada en datos recientes, particularmente sobre su eco-fisiología. Finalmente, esta obra es un valioso aporte e incentivo para futuros estudios que busquen contribuir al conocimiento de la culebra ciega , bien sea con fines comerciales o de exploración del potencial uso farmacológico de sus exudados. ····· 103611803
für 35.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray La reproducción es un proceso complejo, en el que la mayoría de los intentos fracasan, también en los humanos. Las causas de estos fracasos tienen una dimensión biopsicosocial poco comprendida, por lo que las posibilidades de predecir el éxito reproductor son escasas. Los primates calitrícidos, entre los que se encuentra el tití de cabeza blanca, son modelos óptimos de salud reproductora. En este trabajo se investiga el papel de los mecanismos reguladores de la función reproductora en hembras subordinadas de tití de cabeza blanca en condiciones similares a las que deben poseer en libertad. Para ello se ha creado una situación experimental dividida en 4 fases que de forma gradual disminuye la cohesión grupal y permite el contacto entre grupos, analizando tanto las variaciones hormonales como las conductuales de hembras subordinadas. Este estudio puede resultar útil para todos los profesionales que trabajen con primates así como para aquellos interesados en profundizar en el conocimiento de los mecanismos implicados en la salud reproductora. ····· 1036121983
····· lezzter Preis 35.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray El desarrollo postembrionario, consumo y parámetros de tabla de vida de Cydnodromus picanus Ragusa y Phytoseiulus persimilis (Athias-Henriot), fueron estudiados a 29,44 ± 1,47 °C, 42,35 ± 5,01% de H.R. y un fotoperíodo de 14:10 h (L:O), para evaluar la potencialidad de estos depredadores sobre la arañita cinabarina Tetranychus cinnabarinus Boisduval. Los estados de huevo, larva y protoninfa de T. cinnabarinus pueden ser considerados alimentos óptimos para C. picanus obteniéndose una supervivencia de 100, 97 y 93%, respectivamente. La tasa intrínseca de crecimiento (rm) fue sinificativamente mayor (P0,05) para C. picanus (0,289 y 0,307) que para P. persimilis (0,019 y 0,025) alimentados con huevos y una mezcla de diferentes estados de T. cinnabarinus, respectivamente. Los valores de la tasa finita de crecimiento ( ) también fueron significativamente (P0,05) mayores para C. picanus (1,34 y 1,36) que para P. persimilis (1,02 y 1,03) al alimentarlos con huevos y dieta mixta, respectivamente. Los valores altos de rm y registrados para C. picanus en las condiciones experimentales son indicadores del posible control que presentaría este fitoseido sobre la arañita cinabarina. ····· 1036122650
····· lezzter Preis 35.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray SPODOPTERA FRUGIPERDA (Smith) (Noctuidae) es plaga clave del maíz en el norte de Argentina. DORU LINEARE (Eschs.) (Forficulidae) es un insecto omnívoro integrante frecuente de la entomofauna del agroecosistema maíz en esa región. En este estudio, además de hacer aportes sobre algunos aspectos biológicos, se estima la eficiencia de D. LINEARE como depredador de S. FRUGIPERDA se evalúa sus preferencias alimenticias frente a diferentes fuentes nutricias, y se cuantifica su capacidad de depredación y respuesta funcional frente a diferentes densidades de larvas de S. FRUGIPERDA . A través de estos estudios se determinó que D. LINEARE tiende a comportarse como depredador de la plaga. Tanto las tasas de consumo como el comportamiento depredador que mostró este dermáptero en laboratorio permiten afirmar que debe ser considerado como un potencial organismo benéfico y ser tenido en cuenta al momento de planificar el manejo integrado de plagas en los cultivos de maíz del NOA. ····· 1036123047
····· lezzter Preis 35.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Las plagas potenciales del cultivo de papa, vienen adquiriendo importancia económica perjudicando principalmente a pequeños agricultores. Acordulecera sp. (actualmente Tequus ducra)conocida como el gusano esqueletizador de la hoja de papa o avispa sierra, es un insecto que en su estado larval ocasiona daño al alimentarse masticando el área foliar de la planta, incrementando su densidad en las estapas de floración y tuberización de la planta. Esta plaga viene alcanzando amplitud en la zona andina, desde los 2800 a 3900 msnm esta adaptación y monofagia nos muestra el interés e importancia de su estudio para poder realizar técnicas adecuadas de control y monitoreo además asi poder conocer a sus posibles controladores biológicos, todo ello permitirá manejar las poblaciones de esta plaga a niveles que no ocasionen daño y pérdidas económicas a los agricultores. ····· 1036123346
····· lezzter Preis 35.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray El Mal de Río Cuarto , causado por el Mal de Río Cuarto Virus, es la enfermedad virósica más importante del cultivo de maíz (Zea mays L.) en Argentina, por su amplia difusión, intensidad y elevadas pérdidas que produce. Diferentes especies cultivadas y malezas, que comparten el área de siembra del cultivo de maíz, se comportan como reservorios naturales del virus y hospedantes del principal insecto vector, Delphacodes kuscheli Fennah (Hemiptera-Delphacidae). EL estudio del rol epidemiológico que cada especie vegetal desempeña en el desarrollo del vector de esta enfermedad, constituye una importante herramienta para la elaboración de una adecuada estrategia de manejo. ····· 1036123503
für 35.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray En este trabajo se analizó la variación morfológica del género Puma tanto en las estructuras esqueléticas como externas, con el fin de explorar posibles agrupaciones geográficas y contribuir al conocimiento del género en el país. La muestra incluye especímenes de distintos museos nacionales de cada ejemplar se analizaron 32 medidas craneales, mandibulares y dentales comparaciones de estructuras del post-cráneo y mediciones en el pelo. Los resultados muestran que existen diferencias en 28 caracteres discretos postcraneales entre las dos especies, así como diferencias en la margen posterior del palatal, tonalidades del pelaje y formas de cráneo a nivel intraespecífico. Las diferencias en el margen posterior del palatal aparentan tener una asociación geográfica que debe ser analizada con más detalle con la revisión de nuevos especímenes de otros países tanto Puma concolor como P. yagouraundi presentan gran variación en longitud mayor del cráneo, longitud basilar y ancho zigomático. Igualmente, se desarrolló una descripción preliminar de la ontogenia en P. yagouaroundi en las que se encontraron cambios asociados al desarrollo de la especie en estructuras craneana y del pelaje. ····· 1036190693
für 35.91€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The efficacy of curcumin and resveratrol were tested for the potential anticataract activity in rats. Galactose enriched diet induced cataract in albino rat through elevated generation of reactive oxygen species in eye lens. In addition, there is a concurrent imbalance in the levels of antioxidant. Oral co-administration or post galactose administration with curcumin or resveratrol resulted in protection or reversal of cataract by curcumin or resveratrol respectively. ····· 1036119715
für 38.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Vitus Graber (1844 1892) war ein österreichischer Zoologe. Seinem Spezialgebiet, der Entomologie, trägt er mit einem zweibändigen umfangreichen Werk Rechnung. In dem hier vorliegenden zweiten Band legt Graber seinen Fokus auf eine vergleichende Lebens- und Entwicklungsgeschichte der Insekten. Der Schwerpunkt des ersten Bandes liegt auf dem Organismus der Insekten, den Graber präzise und detailgenau erläutert. Dieser erscheint im Unikum-Verlag unter der ISBN 978-3-8457-4274-8. Der zweite Teil des hier vorliegenden Bandes ist über die ISBN 978-3-8457-4276-2 erhältlich. Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1877. ····· 10361139177
····· lezzter Preis 39.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Geliebte Samtpfoten Sie ist hierzulande das beliebteste Haustier: die Katze. Fast 15 Millionen schnurrende Vierbeiner leben allein in deutschen Haushalten - von der Europäisch-Kurzhaar ohne Stammbaum bis zur edlen Rassekatze. Wie die Geschichte zwischen Zwei- und Vierbeinern begann und zu welch schönen, eleganten und geheimnisvollen Rassen diese jahrtausendelange Beziehung geführt hat, schildert Tamsin Pickeral in diesem opulent gestalteten Bildband. Mit kleinen Anekdoten und sehr persönlichen Geschichten erzählt die Autorin liebevoll und kenntnisreich, wie sich die Katze als Nutztier und Gefährtin ins Herz der Menschen schlich - von der Antike bis heute. Von den vielen verschiedenen Rassen, die sich seitdem herausgebildet haben oder gezüchtet wurden, stellt die Autorin die schönsten vor: darunter alte Rassen wie die edle Siam, heute hierzulande weit verbreitete Züchtungen wie die große, langhaarige Maine Coon, aber auch seltene Vertreter wie die lockige Selkirk Rex oder die haarlose Don Sphynx. Die große Fülle an Informationen wird ergänzt durch die bestechend schönen Porträts, die Fotografin Astrid Harrisson für dieses Buch aufnahm. Sie fangen das Wesen der Katzen ästhetisch und stilvoll ein - mal verspielt und frech, mal majestätisch, aber stets unabhängig und intelligent. Ein Bildband der Extraklasse! `Jedes Katzentier ist ein Meisterstück der Natur.` Leonardo da Vinci ····· 1036152881
····· lezzter Preis 39.80€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Rautenpythons zählen nicht nur zu den attraktivsten Riesenschlangen überhaupt, sondern bieten dem Reptilienfreund auch eine Vielfalt verschiedenster Erscheinungsbilder, die ihresgleichen sucht. Marc Mense pflegt seit vielen Jahren diverse Rautenpythons und züchtet Sie erfolgreich nach. In diesem Buch stellt er Ihnen sämtliche Unterartenvon Morelia spilota (Teppichpythons, inkl. Diamantpython) sowie außerdem Morelia bredli (Bredls Python) und die noch immer kaum bekannte Art Morelia carinata (Rauschuppenpython) in Wort und Bild vor, schildert ihre Lebensweise in freier Natur und beschreibt ausführlich sowie leicht nachvollziehbar die artgerechte Haltung der faszinierenden Tiere. - Systematik: detaillierter Bestimmungsschlüssel - Biologie: die Lebensweise der Tiere in freier Wildbahn - Terrarium: artgerecht einrichten - Umgang mit Rautenpythons: wichtige Tipps - Vermehrung: Paarungsstimulation, Bebrütung der Eier und Aufzucht der Jungtiere - Krankheiten: Probleme vermeiden/lösen - Artenteil: Detaillierte Angaben zu sämtlichen Arten und Unterarten - Brillante Fotos aller Formen ····· 10361165962
für 39.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Selten hat sich jemand so umfangreich und detailgetreu der Erforschung der vorgeburtlichen Entwicklung eines Säugetiers gewidmet wie der Anatom und Physiologe Bischoff in der vorliegenden Monographie über das Hunde-Ei. In Einzelheiten beschreibt er die Entstehung des Hunde-Eies, seine Befruchtung sowie seine Einnistung im Uterus der Hündin. Auch die darauf folgenden Entwicklungsschritte des Hundeembryos werden von ihm eingehend erläutert. Qualitativ hochwertiger Nachdruck der Originalausgabe von 1845. ····· 10361138941
für 39.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Schon früh hat Rudolf Zimmermann seine Vorliebe für Kriechtiere und Lurche entdeckt. Das Besondere an dem nun von Zimmermann hier vorgelegten Band ist, dass er die unterschiedlichen Ordnungen, Familien, Gattungen und Arten hauptsächlich nach ihren äußeren, sofort ins Auge fallenden Merkmalen charakterisiert und sie auf diese Weise dem Leser zugänglich macht. Es gelingt ihm, selbst den unwissenden Leser rasch und zügig in die Thematik einzuführen und ihm so eine Ein- und Zuordnung der unterschiedlichen Tiere zu ermöglichen. Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1908. ····· 10361138977
für 39.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In Anbetracht ihrer Lebensäußerungen, ihrer Verbreitung sowie der Rolle, die sie in der Vorzeit spielten, stellen die Reptilien in der Tierwelt eine besondere Gruppe dar. Franz Leydig nun hat sich dieser speziellen Spezie angenommen und dokumentiert sie ausführlich. Detailliert beschreibt er ihren Körperbau und ihre Entwicklung und zeigt zudem ihre verwandtschaftlichen Verhältnisse zu den Sauriern auf.Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1872. ····· 10361139305
····· lezzter Preis 39.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Im Original 1909 erschienenes Werk als Einführung in die Entwicklungsgeschichte auf palaeontologischer Grundlage. ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· 10361150918
····· lezzter Preis 39.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der `Bilder-Atlas zur Zoologie der Säugetiere` soll breiten Schichten der Bevölkerung und namentlich der heranwachsenden, lernenden Jugend Gelegenheit geben, durch Anschauung von Abbildungen Belehrung und würdige Unterhaltung zugleich zu finden. Nachdruck der Originalausgabe von 1897. ····· 10361172505
····· lezzter Preis 39.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Wie sein Vorgänger, so soll auch dieser Band in erster Linie der heranwachsenden, lernenden Jugend ein Anschauungsmittel sein, das mit gründlicher Belehrung abwechslungsreiche Unterhaltung ernsterer Art verbindet. Nachdruck der Originalausgabe von 1898. ····· 10361172506
····· lezzter Preis 39.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Jung und alt wird sich an den meisterhaften Darstellungen des lieben, anmutigen Wesens erfreuen wie sie der `Bilder-Atlas zur Zoologie der Vögel` präsentiert und sich darüber hinaus in seiner so berechtigen Zuneigung zu den prächtigen Mitgeschöpfen bestärkt fühlen. Nachdruck der Originalausgabe von 1898. ····· 10361172507
····· lezzter Preis 39.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Wir hoffen, dass sich auch dieser vierte und letzte Teil der Sammlung als ein brauchbares Hilfsmittel für den Anschauungsunterricht für jung und alt erweisen wird. Nachdruck der Originalausgabe von 1899. ····· 10361172508
····· lezzter Preis 39.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Von den Germanen als heiliger Vogel Odins verehrt, in christlicher Zeit wegen seiner schwarzen Farbe als Unheilsbringer verunglimpft und als Fischräuber verfolgt, zu allen Zeiten aber geheimnisumwittert, hat der Schwarzstorch im letzten Vierteljahrhundert weite Teile seines ehemaligen Verbreitungsgebietes in West- und Mitteleuropa in einem beispiellosen Siegeszug zurückerobert: Auf der Grundlage internationaler Forschungsergebnisse, gewonnen unter Einsatz moderner Technik, wie z.B Satellitentelemetrie und Videokamera-Horstüberwachung, eigener Untersuchungen der Autoren und der Verarbeitung der verfügbaren Literatur gewährt der Brehm-Band als weltweit bislang umfassendste Gesamtdarstellung Einblicke in die noch wenig bekannte kulturgeschichtliche Bedeutung des Schwarzstorchs und präsentiert aktuelle Zahlen zur Verbreitung und Bestandsentwicklung ebenso wie neue Erkenntnisse über Habitatnutzung, Ernährung, Stellung innerhalb des ökologischen Systems, Brutbiologie, Verhalten, Zug und Überwinterung sowie interspezifische Beziehungen. Darüber hinaus werden Gefährdungsfaktoren analysiert und Schutzstrategien diskutiert. Überlegungen zu einem Bestandsmonitoring verstehen sich als Anstoß zur Umsetzung internationaler Schutzverpflichtungen, die sich z.B. aus dem Afrikanisch-Eurasischen Wasservogel-Abkommen (AEWA) ergeben.So bietet der Band, durchgehend mit Farbfotos renommierter europäischer Naturfotografen illustriert , allen am Schwarzstorch Interessierten einen schnellen Zugriff auf die benötigten Fachinformationen. ····· 10361209825
····· lezzter Preis 39.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Graumulle sind afrikanische, mit Stachelschweinen verwandte Nagetiere, die unterirdisch in Familien leben und dank ihrer außergewöhnlichen Biologie stets die Aufmerksamkeit der Medien und Laien anziehen. Anders als bei monogamen Säugetieren üblich, verbleiben die meisten Nachkommen lebenslang bei ihren Eltern, pflanzen sich selbst nicht fort, arbeiten zum Wohl der Familie und verteidigen das gemeinsame Gangsystem. Aufgrund ihrer zahlreichen Anpassungen eignen sich Graumulle hervorragend zur Erläuterung der Evolutionsmechanismen und ökologischen Regeln in (Hoch)Schulseminaren. Prof. Hynek Burda und Privatdozentin Sabine Begall haben zusammen mit ihren MitarbeiterInnen wesentlich zur Erforschung der Graumulle beigetragen. In diesem Buch stellen sie diese hochinteressanten Tiere und die Geschichte ihrer Erforschung vor. Sie zeigen, wie sich Graumulle an ihre dunkle, reiz- und sauerstoffarme Umwelt, in der eine sonderbare Tunnelakustik herrscht, angepasst haben. Sie erläutern, wie ihre Verbreitung und Stammesgeschichte mit der geologischen und klimatischen Vergangenheit Afrikas korrelieren und welches Potential sie als Modelle für die biomedizinische Forschung haben. Mit dieser Monografie wird LehrerInnen, Studierenden, JournalistInnen und allen an Graumullen Interessierten erstmals ein topaktuelles und spannend zu lesendes Referenzwerk über diese faszinierenden Tiere präsentiert. ····· 10361209833
für 41.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Vitus Graber (1844 1892) war ein österreichischer Zoologe. Seinem Spezialgebiet, der Entomologie, trägt er mit einem zweibändigen umfangreichen Werk Rechnung. In dem hier vorliegenden zweiten Band legt Graber seinen Fokus auf eine vergleichende Lebens- und Entwicklungsgeschichte der Insekten. Der Schwerpunkt des ersten Bandes liegt auf dem Organismus der Insekten, den Graber präzise und detailgenau erläutert. Dieser erscheint im Unikum-Verlag unter der ISBN 978-3-8457-4274-8. Der erste Teil des hier vorliegenden Bandes ist über die ISBN 978-3-8457-4275-5 erhältlich. Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1879. ····· 10361139178
für 43.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ernst Haeckel (1834 1919) war ein deutscher Zoologe, Philosoph und Freidenker. Der vorliegende Band versammelt Vorträge des berühmten Naturforschers, die er zwischen 1869 und 1878 gehalten hat. Er behandelt hierbei Themen wie den Stand der Entwicklungslehre im Verhältnis zur Gesamtwissenschaft, Ursprung und Entwicklung der Sinneswerkzeuge und den Entwicklungsgang der Zoologie.Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1902. ····· 10361139381
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present study included the impact of habitat destruction on the population of amphibians with reference to status of frogs and toads in Karachi and Thatta districts of Sindh. Four species of frogs, Common Skittering Frog, Tiger Frog, Indian Burrowing Frog and Indian Cricket Frog, and two toad species, Marbled Toad and Common Asian Toad were recorded. On the basis of present study, it is concluded that the permanent habitat alternation, destruction of habitat, use of indiscriminate toxic material such as pesticides, chemical fertilizers and increase of human population, three species Hoplobatrachus tigerinus, Tomopterna breviceps and Limnonectes limnocharis are declined and rated as threatened species in Thatta district, while two species Hoplobatrachus tigerinus and Tomopterna breviceps were rated as rare in Karachi district. The research techniques and information are helpful for graduate and research students of wildlife, National Parks managers, wildlife biologists, wildlife conservation organizations etc. ····· 10361317
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Fluoride (F) toxicity has become a global problem today and needs great concern.F contaminated drinking water could be injurious to bone marrow cells (BMCs) evidenced by chromosomal aberrations (CAs),reduced rate of cell division and induction of apoptosis.As little as 3.4 mg F ion/L in the drinking water F found to be genotoxic,whereas higher concentrations seemed to be less toxic.It results depletion of GSH level and increase in GST activity,MDA production as well as expression of Hsp 70.The tissue-specific pattern of Hsp synthesis may provide a useful toxicological signature to characterize F toxicity.Depletion of endogenous GSH by BSO significantly enhanced the frequency of aberrations.NAC pre-treatment not only led to significant increase in GSH level but also significantly decreased the NaF induced CAs.These indicate the involvement of endogenous GSH in determining F-induced genotoxicity in mouse BMCs.Supply of safe water may be a simpler way to tackle the F-toxicity in large F-endemic population.This book may draw a general concern on the safety level of F contamination and help to better understand the mechanism of action of its genotoxicity and concomitant GSH metabolism. ····· 10361576
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present research was conducted during May 2009 to September 2010 to explore the spider fauna of FR Peshawar, FATA, Pakistan. Spiders were collected and identified. Their 23 species belonging to 15 genera and 09 families were reported. The reported families Clubionidae, Scytodidae and Sprassidae covered 4%, Araneidae, Gnaphosidae, Pholicidae and Salticidae 9%, Thomisidae 13% and Lycosidae 43% biodiversity of spiders of FATA. However, the largest spider collected was huntsman, Isopoda tuhodnigra (Barrion) with total body length 15.80±0.83 mm. Moreover, the smallest spider was wolf spider, Pardosa birmanica (Simon) with total body length 4.20±1.30 mm. Further, the daddy long leg, Crossopriza lyoni (Blackwall) has the longest legs with first leg length 49.70±3.71 mm and last leg length 41.50±3.13 mm. Furthermore, jumping spider Plexippus paykullii (Audouni) has the smallest legs with first leg length 5.8±0.83 mm and last leg 4.50±0.83 mm. However, the crab spiders, Thomisus pugilis (Stoliczka), T. spectabilis (Doleschall) and Diaea evanida (Thorell) were the most colorful species belonging to family Thomisidae. Moreover, most of the species recorded have brown and grayish in color. ····· 10361735
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray One of the most fascinating aspects in the life of birds is their breeding phase, which is intimately tied to the distribution and abundance of food resources in their environment. However, food is not evenly distributed in space and time, and this is thought to have been one of the factors affecting the evolution nesting strategies. The current study includes nest architecture, nest-site selection, clutch size, nestling growth, parental care and breeding strategy etc. During the study nine species of Passeriformes were observed nesting in the area. Two species of weaver birds nest in pendant type nest, two species of swallow nest in mud nest, White-throated Munia, Tailor bird, Red-vented Bulbul, Sykes`s Crested Lark and Common Babbler nest in domed or ball shaped nest. They build nests in leaves stitched together, cup shaped nest of grass, simple scrapes in ground and twig nest respectively. ····· 103611063
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Parasitic diseases are a constraint to livestock productivity across all agro-ecological zones in Africa. Parasitism of the gastro-intestinal tract with nematodes is an impediment in the breeding of goats in Kenya. In this study, extracts of Vernonia amygdalina and Tephrosia vogelii were evaluated for their Nematocidal activities against mixed gastro-intestinal nematodes and Haemonchus contortus infections in goats. Chemical constituents of the plant leaf extracts were determined by soxhlet extraction followed by characterisation of the plant leaf extracts by Nuclear Magnetic Resonance (1H 13C NMR), Infra-red Analysis (FTIR), and Gas Chromatography Mass Spectrometry (GC-MS). Faecal egg count reduction test (FECRT) and faecal cultures revealed that both extracts had significant anthelmintic properties against mixed natural gastro-intestinal and Haemonchus contortus infections (P 0.05). The leaf extracts were found to contain rotenoids, sesquiterpene lactones, glycosides and tannins. The leave extracts of both plants can therefore be recommended to be used in traditional and ethno-veterinary medicine. Scholars of parasitology and parasitologists will find this book resourceful. ····· 103611229
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book has been written on endoparasites of of Indian major carp, Labeo rohita. There different sites were selected and prevalence of endoparasites was explored. Mainly nematodes and trematodes were present in the gut and liver. Intensity was much higher in the gut than liver. In addition to that effect of these parasites on vital organs like gut and liver was also explored. These parasites have drastic effect on these two organs on their cellular level. ····· 103613287
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present study was conducted for efficient and quality production of stingless wasp, Trichogramma chilonis Ishii on grain moth, Sitotroga cereallela (Olivier) and rice meal moth, Corcyra cephalonica (St.). Biological control offers effective alternatives for the control of many insect pests. The most favorable temperature was 28 ºC on which maximum rate of parasitism and adult emergence were obtained from S. cereallela eggs as compared to C. cephalonica eggs. Under no choice test, the percentage of oviposition and adult emergence was the highest at 2 h eggs of both hosts. For host density percentage parasitism and adult longevity was the highest at 20 eggs whereas emergence was the highest from 10 eggs of S. cereallela while of C. cephalonica percentage parasitism and emergence was the highest at 10 eggs. For parasitoid density, parasitism was the highest at 5 pairs of Trichogramma. It is concluded that S. cereallela eggs more suitable as compare to C. cephalonica eggs for mass and quality rearing of parasitoid, T. chilonis. Use of T. chilonis is the most appreciated to control of specific hosts as biological control agents. ····· 103613330
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Vitamin D is the precursor of 1, 25 dihydroxy vitamin D3, the steroid hormone required for calcium absorption, bone development and growth in children. 90% of vitamin D is produced in the skin from the action of sunlight and remaining 10% is obtained from dietary sources. Vitamin D deficiency is major issue in Pakistan and in pregnancy it has been associated with adverse outcomes like pre-eclampsia, gestational diabetes mellitus and preterm birth. Deficiency during infancy may lead to rickets in infants. This study was aimed to find level of vitamin D in relation with calcium in pregnancy and lactation. For the assessment of Vitamin D, blood samples of healthy, pregnant and lactating mothers were assessed with the help of ELISA. This book will highlight the status of vitamin D in pregnant and lactating women and their comparison with healthy women. ····· 103613515
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Cattla cattla (Carp) is found in Northern India, Pakistan, Bangladesh, and Burma. Five hybrids have been produced. Its total length is 950 mm and total weight is 18.5 kg. The spawning season of C. catla in Gujrat is between June to September. The Present work aims at the determination of total lipid in livers of commercially important major carp. Total lipid profile in female C. catla was measured to study variations from immature to mature stage. Variance between hepatosomatic index (HSI) and gonadosomatic (GSI) index and total body weight with respect to total lipid in liver is also studied. These variations were studied in relation with environmental parameters. Seasonal variations in the level of lipid in fish are related maily to the reproductive cycle. They accumulate large lipid reserves prior to gonadal development. In general fatty acids are mobilized from the lipid reserves of fish during gonadogenesis and transferred via the serum to liver where they are assembled into the lipoprotein, vitellogenin. The total lipid (phospholipids, cholesterol and triglyceride) can be catabolized to provide metabolic energy for egg lipoprotein synthesis. ····· 1036118488
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray There are huge numbers of mites belonging to different mite taxa inhabiting in soil under plants and others infesting leaves of fruit trees and field crops. Some of them are harmful for plants while others can be useful in biological control of pests. So, the present work aimed to survey of mite species associated with certain fruit trees and field crops in three distracts at Sharkia Governorate, Egypt. In addition taxonomical studies to the collected mites with identification keys for them. Finally, taxonomical and biological studies on the predatory mite, Euseius hutu (P. & B.) ····· 1036118706
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Almond are one of the most nutritious of all nuts, low in saturated fat and contain many other protective nutrients calcium and magnesium for strong bones, vitamin E and compounds called phytochemicals, which may help protect against cardiovascular disease and even cancer. Pakistan s largest province of Balochistan with an area of 342,505 square kilometers is rich in fruit production. In Almond production, nematodes are of concern as nematode populations are directly related to tree production in other world. The higher the number present, the more tree and yield damage is expected. During the present study oil-cakes were used for nematode management. ····· 1036119104
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Faecal contamination of water can introduce a variety of pathogens into water ways, including bacteria, viruses, protozoans and parasitic worms. Poor excreta disposal is often associated with lack of adequate water supplies, poor sanitation facilities and low economic status populations. In this study water samples were collected from wells, taps and harvested rain water containers in Kimumu area of Eldoret municipality in Kenya and analyzed using standard bacteriological and parasitological methods. The quality of tap and rain water was found to be acceptable. The presence of Escherichia coli in well water was an obvious indication of faecal contamination. Faecal parasites observed were Entamoeba histolytica, Ascaris lumbricoides, Giardia lamblia, Necator americanus, Ancyclostoma duodenale, Fasiola hepatica, Taenia saginata and Taenia solium. To control infestations with faecal intestinal parasites, provision of treated piped water to all homesteads, consultation of water engineers and/or health inspectors before well construction and creation of public awareness are recommended. Scholars of microbiology and parasitology and parasitologists will find this book resourceful. ····· 1036119332
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Over the last decade or so, the use of insecticides has increased exponentially, and some of these are carcinogenic and therefore, banned from usage completely. With the advent of biopesticides and integrated pest management (IPM), the focus is on ecofriendly approaches and very little academic literature exits on how to best utilize this arena for acridiods of agricultural importance. Insect pests have been estimated to cause $90.5 billion dollars in damages to eight principal food and cash crops viz., rice, wheat, barley, maize, potato, soybean, cotton and coffee versus $76.9 billion dollars damage by disease pathogens and $76.3 billion dollars by weeds. It has been suggested that by adopting insect pest management, the global crops could be doubled. This book, therefore, should help shed some light on crop damage by grasshoppers and the results of such studies will be instrumental in understanding and devising population management strategies and should especially be useful to farmers, entomologists, agriculturists, or any one else who may be considering to take a lead role in crop production. ····· 1036119333
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Cortisol is the principal active glucocorticoid produced by the human adrenal gland, which is the key regulator of whole-body homeostasis. Cortisol is essential for provision of nutrients to tissues via carbohydrate, protein, and lipid metabolism. It also affects all of the major systems of the body, including the cardiovascular, musculoskeletal, nervous, and immune systems, and play critical roles in fetal development. Secretion of cortisol is controlled by hypothalamus, pituitary and the adrenal gland. CRH released from the hypothalamus acts on pituitary gland to release ACTH, which acts on the adrenal gland to increase the synthesis and release of cortisol. This book focuses on the changes in plasma cortisol observed in adult male rabbits treated with monosodium glutamate. Monosodium glutamate, is the salt which is frequently used in daily life. This book demonstrates that how monosodium glutamate crosses the blood brain barrier acts on the HPA axis and consequently increases the plasma cortisol level. ····· 1036119450
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present study was designed to demonstrate the effect of monosodium glutamate on PRL level in prepubertal rabbits. Glutamate is a major neurotransmitter that acts on extensive brain regions, such as hypothalamus and the pituitary and induce the secretion of PRL. In this study, young male rabbits (Lates calcarifer) of 3 to 4 months of age were treated with 2mg/g body weight MSG dissolved in 0.9% saline. The animals in control group received equal quantity of 0.9% saline. Blood samples were collected 15 minutes after administration of drug, and plasma was separated. All plasma samples were analyzed by Enzyme linked Immunosorbent Assay (ELISA). Within the control group, there was no significant difference in plasma PRL level (p0.05). In treated group, plasma PRL level was highest in T2 (2.69 ± 0.042 ng/ml) and lowest in T1 (2.16 ± 0.067 ng/ml). Administration of glutamate in the form of MSG causes tonic activation of tuberinfudibular dopaminergic neuron system (TIDA). As a result dopamine release, PRL level in prepubertal rabbits decreases. Regression analysis of variance showed non significant negative trend in plasma PRL level (p 0.05) in animals of control and treated group. ····· 1036119983
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The plankton community is a heterogeneous group consisting of tiny plants to large jelly fishes of over 10 m long adapted to suspension in the sea and freshwaters. Animals with feeble locomotory power and which are carried along by the moving water are called as plankton. They are divided into phytoplankton and zooplankton. The zooplankton assemblage inhibiting freshwater mostly comprise of Protozoa, Coelenterate, Rotifera, Gastrotricha, Bryozoa and Arthropoda (Battish 1992). Most zooplankton occupies the second or third tropic level of the aquatic food web as such these herbivores, carnivores and omnivores play a significant role in aquatic food webs. The minute size of phytoplankton denotes that aquatic grazers are very small and therefore there exits many steps or links in aquatic food webs which are necessary to support large carnivores such as fish. There are many studies on the zooplankton populations of tropical ponds. As zooplankton constitutes important live feed for many economically important fishes and prawns a large quantity of zooplankton is harvested daily by the aquarists from the ponds (Altaff et al 2002). ····· 1036120145
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Pakistan s largest province Balochistan with an area of 342,505 square kilometers is rich in fruit production. Pomegranate is an important fruit of this province which can prevent heart disease, relieve stress and is now being hailed as elixir of youth. The pomegranate is equal to the apple in having a long storage life. In the present study nematodes associated with pomegranate are being reported and their management using oil-cakes. ····· 1036120267
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Malaria is one of the most common diseases in developing countries and poses a great challenge to world health. Resistance of malaria parasites to available antimalarial drugs remains the main challenge to the effective control of the disease. The physiological conditions prevailing with in the acidic digestive vacuoles of the malaria parasites provide a suitable physiochemical environment for conversion of heam to beta-hematin/hemozoin. Though the both protein as well as lipids mediated beta-hematin formation remain valid hypothesis but later seems to be more relevant, when mechanism of hemozoin synthesis is considered as a simple physiochemical reaction. Some repeats earlier heme show loss of beta-hematin formation activity of the parasite lysate by protenase K and heat treatment. The digestion of this cytosol, which consists essentially of hemoglobin results in the formation of potentially toxic ferriprotoporphyrin IX (FP). Several antimalarial drugs are thought to exert their effect by complexing with FP, thus inhibiting its detoxification through polymerization to hemozoin. Our aim shows that inhibition of heam polymerization by Arteether. ····· 1036120413
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book includes brief diagnosis of Family, subfamily, genera and species. Keys to Tribes, genera and species where ever necessary are given. The species represented in this region are briefly described and illustrated. Notes on coloration are also given. Some useful observations made on their biology, pest-plant, pest-predator, pest-parasite relationships including distribution of Aphid species in different localities are incorporated. ····· 1036120877
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Wetlands have been threatened by urban, industrial, and agricultural expansions, which have jeopardized the integrity of this unique ecosystem. As a result, avifauna that exploits the wetlands has severely been affected. The Vaduvoor Lake in Tamil Nadu, India is one such wetland that supports large number of migratory and resident birds. Indian Bird Conservation Network has recently identified this lake as one of the Important Bird Areas (IBA) of India, despite which no attempt has been made so far to study this wetland or the avifaunal species dependent on it. The present study focus comprehensively the status of colonial waterbirds utilizing the lake for various ecological purposes. ····· 1036121355
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The dog amongst all the animals has proved to be the man`s best friend and faithful companion because of its fidelity, loyalty, obedience and pleasant disposition. Dogs appeared on the earth about 20 million years ago (Sharma et al., 1993). The dog`s stomach is a sac-like structure designed to store large volumes of food and begin the digestive process. Once eaten, most food leaves the stomach within twelve hours after entering. The esophagus carries food to the stomach, where it enters via a valve-like structure called the cardiac sphincter. On the interior surface of the stomach is a series of folds called gastric folds. These folds function to help grind and digest food. The inner stomach lining secretes acids and enzymes to break food down as the initial step in the digestive process. Once the initial stomach digestive process is complete, the partially digested food exits the stomach through the pyloric sphincter area and then enters the duodenum (small intestine). ····· 1036121382
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The fish communities in Ethiopian fresh water systems vary according to the different river basins and environmental conditions. Lake Tana is one of the few African lakes which have not yet been damaged by introduced fish species. Prior to 1986 Lake Tana fisheries consisted of only artisanal, predominantly subsistence reed boat fishery. This type of fishery is limited to the shore areas and targets of the native Nile tilapia (Oreochromis niloticus), beso (Varicorhinus beso) and Labeobarbus using locally made fish traps and small gillnets. For this study the catch and effort records of the three commercial fish species in Lake Tana was used for the analysis. This book describes research findings on the developments of catch and effort in the Lake Tana fisheries and variations of fish stock biomass of this largest Ethiopian Lake between the two periods. ····· 1036121539
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Khyber Pakhtunkhwa forests are of great importance for the ecological health and socio economic development of the province. Nematodes are important as they can cause substantial damage to different forest trees. In the present study nematodes associated with willow, poplar, heaven tree and walnut are being reported. The information is useful for plant pathologists, students, teachers and research workers in this field of study. ····· 1036121576
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray El presente trabajo contribuye al conocimiento de los mamíferos silvestres que se distribuyen en la Comarca Lagunera, México, a través de la elaboración de un inventario mastofaunístico y una base de datos que compila los registros históricos de ejemplares de mamíferos silvestres colectados en la región y depositados en diversas colecciones mexicanas y del extranjero. Asimismo, se proponen áreas relevantes para la conservación de la mastofauna regional con base a su distribución potencial y se comparan dichas áreas con la red local de Áreas Naturales Protegidas, las Regiones Terrestres Prioritarias y los Sitios Prioritarios para la Conservación propuestos por la Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO). ····· 1036123593
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Beta lactamases are the group of enzymes which are produced by some bacteria and they hydrolyze the -lactam ring of the -lactam antibiotics. Different strains of gram negative bacteria were isolated from these samples and identified as E. coli, Enterobacter and Klebsiella. Sensitivity of these bacterial strains was checked against different classes of antibiotics e. g. aminoglycosides, cephalosporins, carbapenems and trimethoprim-sulfamethoxazole by disc diffusion technique. These strains were analyzed for the production of beta lactamases which was then confirmed by double disc diffusion test. Results have shown that high resistance of beta lactamase +ve strains was found against cephalosporin and trimethoprim-sulfamethoxazole group and less resistance against carbapenem (imipenem and meropenem) and aminoglycosides group. ····· 1036124812
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Amoebiasis is an infection caused by a protozoan parasite called Entamoeba histolytica. In Zaria, the standard of sanitation is low diarrhoea in children is high with corresponding morbidities and deaths. However, knowledge of the significance of this parasite in children, especially in the light of modern and more sensitive method of diagnosis is not sufficient. An immunoassay of E. histolytica in children aged 3-60 months was carried out using the TechLab E. histolytica II ELISA kit which is specific and sensitive for the parasite, as microscopy alone is no longer reliable. Out of 183 stool samples screened, 78 (42.62%) tested positive for the parasite. In our findings, infection was significantly associated with diarrhoea and the home location of the children (P0.05). This suggests that infection may have been influenced by poor sanitation and personal hygiene of caregivers. The book suggests that E. histolytica is a major cause of diarrhoea in children in the study area and highlights the need for public health education amongst caregivers towards controlling the infection. This book would be useful to scientists conducting research in similar areas and Laboratory workers. ····· 1036125040
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Endosulfan is a pesticide of organochlorine group, It is used to control pests on fruits, vegetables, and tea and on non food crops such as tobacco & cotton. Government of Kerala (India) banned this pesticide due to its hazardous effect on reproductive health in cashew nut workers of Kassargod district. So, an intensive study was required for it.In the present investigation, the dose of 3 mg/Kg b.w of Endosulfan was continuously administered to male mice for 35 days. The mice were sacrificed on 35th day to observe the sperm morphology and level of Testosterone and Luteinizing hormone (LH) in the serum.After treatment, major changes were observed with loss of sperm tail, degenerated acrosome, coiled tail and declination in the level of Testosterone and inclination in the level of LH were observed which signify the testicular dysfunctions and finally causes infertility in male mice. ····· 1036125072
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The use of pesticides and fertilizers has increased rapidly in Pakistan. Pesticide use in Pakistan increased seven-fold in quantity between 1981 and 1992, from 915 million tons to 6,865 million tons of which 80% were organophosphate. Several studies have reported the toxicological issues and adverse effects of pesticides in aquatic biodiversity. The present study included the effects of cypermethrin on cholinesterase activity and protein content against Rana tigrina. After preliminary experiments of the under test compound, two different doses were selected for the studies. It was observed that at the dose of 1% and 0.1% cypermethrin treated frogs, a total reduction in protein contents was found to be 79, 69% in kidney and 76, 44% in liver respectively, as compared to the control. The cholinesterase was found to be inhibited by 36, 35% in kidney and 52 and 47%in liver respectively, when frog were treated with cypermethrin at aforesaid doses. Based on results it is concluded that cypermethrin has reduced protein contents and cholinesterase activity in Rana tigrina. The research techniques and information are helpful for graduate and research students of Biological Sciences. ····· 1036125936
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Considerable scientific evidences indicate that a multitude of environmental contaminants can modulate or mimic the actions of steroid hormones and in some cases produce biological responses qualitatively similar to those produced by endogenous hormones.These chemicals alter the normal functioning of the endocrine system by mimicking, blocking, modifying hormonal metabolism or interfering with the biological hormone synthesis. Reports suggest a concrete link between exposure to these endocrine active chemicals and increasing rates of hormone dependent cancers (breast and prostate), developmental effects in the male reproductive tract, falling sperm counts, and endometriosis. ····· 1036125967
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray When people take more calories than they burn, their bodies store extra calories in the form of fat.But when they keep up taking more and more calories than they burn off, more fats build up in their bodies and eventually lead to a stage where the amount of these body fats can impart an adverse and negative effect on their health and emerge as risk of developing various weight-related health problems. The present study was done in Gujrat city to evaluate the number of overweight and obese individuals and investigate the association of overweight and obesity with increased liver enzymes & Type 2 Diabetes Mellitus. Females showed greater BMI values as compared to males. Overweight and obese females both showed significant increase in Waist Circumference and Waist to Hip Ratio (WHR).Alanine Aminotransferase (ALT) showed no significant increase in obese and overweight individuals. Aspartate aminotransferase (AST) and Alkaline Phosphatase were elevated significantly in both overweight males and females.Thus, our observations demonstrate a relation between overweight, obesity, serum liver enzyme activity and Type 2 Diabetes Mellitus. ····· 1036186528
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is concern with intestinal helminth parasites of Horses, Mules and Donkeys which is so much danger for these as well as other`s animal health. In this book you find the worse affect of intestinal helminth parasites on the life style of these daily working animals. You will also find that how the parasite transfer from one animal to another How these affect their health How it affects their economic importance How we will overcome on the exploration of these parasites Be careful parasites are jeopardy for our as well as other animal`s health. ····· 1036187359
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray According to IUCN (2009), there are now 1,677 reptiles species have been included on the IUCN Red List, with 293 added in 2009. In total, 469 are threatened with extinction and 22 are already Extinct or Extinct in the wild. The present studies included the bioecology and current status of diurnal lizards of Karachi (East, South and Malir districts). The investigation was carried out on the physical characteristics of the three districts and its flora and lizard fauna. In Pakistan some lizard species are threatened, present studies also recorded that Uromastix hardwickii (Indian Spiny-tailed Lizard) and Varanus bengalensis (Indian Monitor Lizard) as threatened species in the three districts of Karachi. On the basis of present work it is concluded that the permanent habitat alteration, destruction of habitat, use of indiscriminate toxic material like pesticides and increase of human population in Karachi, the Brilliant Agama (Agama agilis isolepis) was not found, Indian Spiny-tailed Lizard (Uromastix hardwickii) and Indian Monitor Lizard (Varanus bengalensis) are declined and recorded as threatened species. ····· 1036187499
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Food constitutes an important factor which influences an insect`s chance to survive and multiply by modifying its fecundity, longevity or the speed of development. In recent years much attention has been focussed on the control of insect pests through nutritional regulations. A. diaperinus lays eggs over a long time, belonging to the second group of four types of egg lying in Coleoptera. There appears to have been no published information on the effect of the pulses, red lentil, gram, khesari and black gram on the fecundity and fertility of A. diaperinus. ····· 1036187590
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Honeybees are essential pollinators for most of the crops, oil seeds, vegetables and ornamental flowers. In 2000, the value of American crops pollinated by bees was estimated to be $ 14.6 billion. Simultaneous infections of deformed wing virus and acute bee paralysis virus were most frequengly observed in colonies suffering from weakness, depopulation and sudden collapse. Variances were found in the distribution of black queen cell virus and sacbrood bee virus. There was less than a 2% difference in the RNA-dependent RNA polymerase (RdRp) sequences between kakugo virus strains from aggressive workers and those from other worker populations. The distribution of deformed wing virus infection within the honeybee reproductive castes (queens, drones) was investigated by in situ hybridization and immunohistology from paraffin embedded sections. It spread in digestive tract of the bee but also in the whole body, including queen ovaries, queen fat bodies and drone seminal vesicles. It was suggesting that colony disease outbreaks might result from environmental factors that lead to activation of viral replication in bees. ····· 1036188276
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Due to increasing food demands, pesticides are being used extensively for agricultural crops. Pesticides are contaminating our environment as well. Some pesticides are biodegradable, i.e. These are broken down into less harmful components by living organisms. Specific genes called Pesticides Degrading Genes (PDGs), in these living organisms are responsible for degradation of pesticides. Cloning of these genes in rapidly growing organisms can work to eradicate pesticides contamination during the process of bio remediation. ····· 1036188450
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This study aims to investigate the uptake of Zinc, Copper and Chromium in the muscles of Cyprinus carpio from Akram Shaheed Bridge and Rasul Barrage at river Jhelum in Punjab province, Pakistan in 2010. The Cyprinus carpio is one of the most edible fishes in Punjab. So it is necessary to determine the concentration of heavy metals in muscles as these can cause public health risks. Some heavy metals are biologically important as trace elements but many of them have the biotoxic effects in human biochemistry. So, it is essential to know about their sources, concentrations, their modes of deposition to pollute the environment, leaching processes, conversions and oxidation states which make them harmful and also how these become biotoxic, because when ingested the metals combine with biomolecules as proteins and enzymes to form compounds which are biotoxically stable. The domestic, industrial wastes and mining are the main sources for the heavy metals accumulation. So, this book will help you to know about the Cyprinus carpio and the health risks to fish as well as to man if he takes the fish contaminated with heavy metals. ····· 1036188632
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The ecology of gazelles in Iran is poorly known and habitat associations of this species have not been studied in Iran hitherto. habitat use by Persian gazelle was studied over autumn-winter period through pellet group count in Bamoo National Park. This is the first study in Iran that presents information about gazelles` habitat use in a desert area through a six-month period.Place and time changes in habitat use or plant use are common for many wild ungulates all over the world.Habitat use is an ecological concept whose theories and models attempt to find the effective factors on the use of special resources by an organism and the reasons for their effective yse.We counted 15 transects in 5 plant communities within the Chahmahaki plains in Bamoo Park and this data contributed to our understanding of the habitat. ····· 1036188676
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Mosquito-borne diseases not only cause high levels of mortality, but also inflict great economic impact.Mosquitoes are the important man-biting vectors. It acts as a serious Vector of lymphatic filariasis, Japanese encephalitis, st Lous encephalitis, avian malaria and schistosomiasis etc. Dengue fever is an emerging disease that affects people in more than 100 countries. Which increased fourfold since 1970 and nearly half the world s population is now at risk. In 1990, nearly 30% of the world population, 1.5 billion people, lived in regions where the estimated risk of dengue transmission was greater than 50%. Culex quinquefasciatus, a vector of lymphatic filariasis is found mostly in temperate regions of the world, throughout the tropics and subtropics. Phytochemicals have a major role in the mosquito control program. It provides an alternative to synthetic pesticides because of their low environmental pollution, low toxicity to humans and other advantages. Phytochemicals derived from plant sources can act as larvicides, insect growth regulators, repellents, and oviposition attractants and can play an important role in its control.The book in hand can ben assest for zoologist. ····· 1036188784
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ornamental fish keeping is a hobby of global interest. Ornamental fishes are called living jewels due to their color, shape and behavior. The art of rearing beautiful fishes spread rapidly throughout the world Anemone fishes are members of the family Pomacentridae, one of the largest groups of reef fishes inhabiting tropical and sub-tropical seas, which consist of more than 325 species fewer than 28 genera. They are prodigious, small, often brightly colored, diurnally active and shallow water fishes. Mainly, because of their small size damsel fishes have little impact as far as human economy is concerned, except in the aquarium trade. Many damsel fishes particularly the colorful members of Amphiprion, Premnas and Dascyllus are popular aquarium fishes, which readily adapt to aquarium surroundings. So, an attempt to cover all aspects of marine ornamental fish giving basic ideas and progress made in marine water under laboratory conditions with up-dated figures and data including methodology. ····· 1036189228
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The current book is based on effects of sodium arsenite on male reproductive system. As sodium arsenite is present in common drinking water so the need for evaluating its hazardous effects is inevitable. People who are interested in having the knowledge about what they are drinking along with water must read this book and get an insight into the adverse effects of this chemical on male reproductive system. ····· 1036191362
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Five essential oils from various parts of plant species were investigated for their larvicidal properties against Ae. aegypti and Cx. quinquefasciatus. Results showed that all the five essential oils produced significant larval mortality against two mosquito species. However the highest larvicidal activity was observed in O. basilicum oil against Ae. aegypti and Cx. quinquefasciatus with the LC50 values 75.35 ppm and 92.30 ppm respectively. However the LC50 values for A. calamus , M. arvensis, S. lappa and C. citrates against Ae. Aegypti were 99.41, 114.33, 128.89 and 136.28ppm respectively and against Cx. quinquefasciatus were 107.81, 112.18, 141.43 and 148.54ppm respectively. So according to the larvicidal activity, the essential oils were arranged in the following ascending order of preference i.e. O. bacilicum A. calamus M. arvensis S. lappa C. citrates. ····· 1036192034
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The indiscriminate use of pesticides is considered one of the important factors that change the environment by causing imbalances in the ecosystem. According to IUCN (2009), there are now 1,677 reptiles species have been included on the IUCN Red List, with 293 added in 2009. In total, 469 are threatened with extinction and 22 are already Extinct or Extinct in the wild. The present studies included the induced effects of two pesticides cypermethrin (pyrethroid) and malathion (organophosphate) on Agama lizard. It was observed that under the effects of cypermethrin and malathion the enzyme activities were found to be significantly inhibited in liver, kidney and brain tissues of treated lizards. On the basis of present findings it is concluded that cypermethrin and malathion both pesticides are harmful for agama lizards. The research techniques and results are helpful for graduate and research students of Biological Sciences, Environmental Science and wetland managers. ····· 1036192273
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Calf mortality rate in 2007 in Peshawar (Pakistan) was 17.98% (Khan et al., 2007). Major causes of mortality of neonatal calves were the conditions like diarrhea and pneumonia (Khan et al., 2009, Shimizu and Nagatoma 1978). The neonatal calf mortality in the first month of age is more than 80% of the total mortality in calves (Jenny et al., 1981). Mortality in calves was found due to the conditions e.g. Feeding practices, managemental practices, weather conditions, bacterial and viral infections especially those causing septicemia, diarrhea and enteritis (Blood et al., 1994).The etiology of neonatal calf diarrhea involves a variety of infectious, nutritional, immunological and environmental factors. Many of the infectious agents have been isolated and identified from the feces and tissues of diarrheic calves but the relative importance of each one has not been established. Recently, infections of individual calves and herds with multiple enteropathogens have been described (Acres et al 1977 Moren M.1974 Brown et al 1973). ····· 1036192537
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is concern with the rate of infestation of intestinal helminth parasites in sheeps of Peshawar. Which shows the effect of these parasites on the health of sheep. Sheep is a very important and valuable animal in our society. Most of the sheeps lose its weight and value due high burden of worms. You will find the way of transmission of worms from one animal to another. How can we deworm these parasites and valuate our sheeps Different and common helminth parasites and there effects on different lifestyle of sheeps, can be easily known. Most of the sheeps owner may be intense with the rapidly loss of their sheep`s health and economic value. Do not miss the recommendations which are too much essential for sheep owners. Be careful that the parasites use the prepared nutrition, from the blood, of their hosts. Best of Luck! ····· 1036198301
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Nicotine is one of the main and toxic alkaloid in tobacoo which is largely absorbed in the body through cigarette smoking. A considerable amount of nicotine is found to be present in blood of tobacoo smokers and snuffers and is largely responsible for various physiological changes. Smokers are at a greater risk of various vascular diseases due to change in their hematological variables. It has been shown that administration of nicotine to healthy mice results in increase in white blood cell (WBC) and platelets (PLT) counts. High count of PLT may lead to thrombosis and other cardiovascular diseases. The levels of red blood cell (RBC) and haemoglobin (Hb) decreases with the dose of nicotine in mice. The levels of reproductive hormones (Lutenizing hormone & Testosterone) also decreases with the administartion of nicotine. So, high levels of nicotine in blood may affect fertility in men. ····· 1036198621
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Cadmium is toxic to a wide range of organisms the main effects are on the growth and reproduction. Dissolved cadmium salts released in drainage water from mines may represent a significant threat to aquatic wildlife. Reproductively active aquatic animals exposed to pollutant stress undergo alterations in their biochemical and physiological functions leading to the disturbed reproductive processes. Biochemical constituents and enzymes are the first detectable / quantifiable responses to environmental changes and can serve as markers for both exposures and effects in organisms. In the edible crab Scylla serrata, the protein, carbohydrate, lipid, marker enzymes and antioxidants have been estimated in the ovary, hepatopancreas, muscle and haemolymph during various stages of the ovarian maturation. The results revealed there were declined levels of protein, carbohydrates, lipid and antioxidants in the cadmium reared crabs when compared to the control. The marker enzymes were increased in the haemolymph. The results were tested statistically and concluded that Cadmium toxicity has significant role in re-productivity. ····· 1036198655
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Taphozous kachhensis (Dobson) is an exclusive Indian Emballonurid bat found in caves, tunnel and temples. Despite the considerable information available on the histology of the ovary in some bats, literature related to study of ovary during different phases of reproductive cycle is scanty. The detailed study of histology of ovary of Taphozous kachhensis during different phases of reproductive cycle has been undertaken because earlier no such study has ever been made on this Microchiropteran species. ····· 1036198717
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present project was designed to study the prevalence of ABO and Rh blood groups in patients with Diabetes Mellitus Type 2 in different hospitals and diabetic centers. For this purpose 300 blood samples of diabetic patients were collected and their blood groups were determined by using Anti-A serum, Anti-B serum and Anti-D serum. Some related parameters such as age, body mass index BMI, blood pressure and blood sugar of diabetic patients were also checked. It was noted that out of 300 blood samples, 176 were taken from male and 124 were taken from female who have type 2 diabetes, the %age of male was 58.6% and %age of female was 41.3% respectively. The number of patients with blood group A, B, AB and O were 36, 156, 14 and 94. The highest prevalence was noted in blood group B i.e. 52% followed by blood group O 31.3%, then A 12% and AB 4.6%. The prevalence of RhD positive among type 2 diabetic patients was found to be 92% i.e. out of 300 diabetic patients 276 were RhD positive and prevalence of RhD negative was 8% i.e. 24 patients. ····· 1036198724
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Insect damage in stored food grains may amount to 10%-40% in countries where modern storage technologies have not been introduced. The loss of the olive crop due to the damage inflicted mainly by Dacus oleae (Insecta, diptera), range from 10 to 70%. According to FAO the loss annually by insects and rodent pests is 10 to 25% of world harvested food. In Pakistan, fruit flies cause a loss of around Rs.7 million annually. While according to another report, in Pakistan about 2 - 6% food grain production is lost every year during storage by stored grain insect pests. Similarly the total post harvest loss of wheat is about 7.37% out of which 3.24% was due to stored grain insect pests. Therefore, the control of these flies and other insect pests is an important health concern. Flies and mosquitoes (Dipterans species) constitute two major groups of nuisance species in rural and urban environments and remains a major source of illness and death worldwide. Mosquitoes alone transmit disease to more than 700 million people annually. This can be valuable book for agriculturist, planners and allied stalk holders. ····· 1036198851
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is mainly focused on freshwater zooplankton diversity and dominance in a freshwater pond ecosystem from kanchipuram District Tamilnadu, India.This study mainly focus on qualitative and quantitative analysis of freshwater ecosystem in kanchipuram district and This study was carried out in aquaculture and aquatic toxicology laboratory, The New College,Chennai, India. I am extremely grateful thank to my publication LAP LAMBERT Academic Publishing Germany. For their keen interest and kind co-operation in this book. ····· 1036198946
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Parasitology is a major and critically important healthcare field in present world because 15 million children in the wrld will die each year from a combination of malnutrition and infectious diseases which includes 4.5 billion helminth infections. So a great deal of research work is required in this particular field to prevent these many children from death. The presentation of the material in this book is based on the observations in the field of parasitology. It is designed to be concise reference work from which the users may quickly retrieve factual material as an aid in the identification and control of Helminths of medical importance. Such type of researchs could be helpful in developing an interest in the students and researchers of medical science to pursue their research work for the benifits of humanity and humankind. ····· 1036199401
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Oviparity is an important type of reproduction in insects. Majority of the insect species start life outside their mother s body in the egg stage. Insect eggs comes in a variety of shapes and sizes. Various types of eggs is dealt in an elaborate fashion for a clear understanding of the ovipositional behaviour in insects. This book highlights the concepts of egg cannibalism, egg diapause and egg guarding behaviour in insects. Light is also shed about the pheromones which may function either as ovipositional stimulant or deterrent. A thorough knowledge about the various concepts in oviposition would help in a larger way to develop management strategies involving the use of biological control agents, i.e. predators and parasitoids, focussed on the egg stage which is highly vulnerable, and moreover, the target cannot try to escape behaviourally. ····· 1036199811
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Amphibians and reptiles are important elements of our natural biological heritage and known to be vulnerable to pesticides that are cholinesterase inhibitors. Several studies have reported that some pesticides reduce cholinesterase (ChE) activity in the frogs. Since the 1970s, significant decline in amphibian populations have been observed throughout the world including Pakistan, due to environmental pollution and some other factors. The amphibians and reptiles are considered to be good indicators of general environmental health. In Pakistan 29 species of amphibians have been recorded, including frog and toad. In this study, Rana cyanophlyctis was exposed to three selected xenobiotics cypermethrin, endosulfan and oxytetracyclin in the laboratory experiments. Two different concentrations were used, and cholinesterase activity was observed in brain, liver and kidney of R. cyanophlyctis. On the basis of present findings it is concluded that xenobiotics chemicals cypermethrin, endosulfan and oxyterracyclin are harmful for amphibians. The research techniques and information are helpful for graduate and research students of Biological Sciences, Environment and wildlife managers. ····· 1036199974
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The red palm weevil, Rhynchophorus ferrugineus Olivier is a widely distributed serious pest of the young coconut and date palms and hence occupies an important status in the field of economic entomology. This book deals with the cytological studies of haemocyte identification and classification The circulating haemocytes in the haemolymph of R. ferrugineus is identified and classified based on light microscopic and electron microscopic studies. In all the different stages studied, the haemocyte complex comprises prohaemocytes, plasmatocytes, granulocytes, adipohaemocytes, oenocytoids and spherulocytes. Prohaemocytes are small, round cells with large nucleus. Plasmatocytes are large fusiform cells with granular cytoplasm. Granulocytes are spherical, oval or irregular cells with granular cytoplasm. Adipohaemocytes are spherical or oval cells with refringent lipid droplets in the cytoplasm. Oenocytoids are generally large, oval or spherical cells with several kinds of inclusions in the cytoplasm. Spherulocytes are oval or round cells with compact nucleus. ····· 10361100111
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Beekeeping, unlike other agricultural enterprises does not require very high investment and intensive labour for routine management. Yet, beekeeping provides an avenue for production of nutritious honey and many other products and provision of several services. However, limited literature exists on tropical beekeeping and the available materials are written in lengthy prose formats, which discourage reading and hence learning. A lot of the details regarding honey bees is hardly known and understood by many potential beekeepers/Apiarists. Beekeeping Simplified comes in an easy to read format, with easy to understand facts and procedures, all presented in a question and answer format. This book goes to great lengths to explain how beekeeping can help to minimise poverty, enhance household incomes and transform communities. Emphasis is put on bee products and their uses to mankind. The book will be of valuable use to beekeepers, extension service workers, policy-makers and students of agriculture, forestry and agro-ecology at different levels of their careers. ····· 10361100892
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Poultry feed contains about 5-6% crude fiber but fiber degrading enzymes are absent in broilers. To utilize this portion of feed different fiber degrading enzymes are supplemented in poultry diets that enhance the growth performance and digestibility of nutrients. Total nine isoproteinous experimental diets were formulated with three enzyme levels (0, 500 and 1000 g/ton of feed) and three energy levels (ME: 2700, 2800 and 2900 kcal/kg of diet). The results suggested that enzyme (Rovabio TM Excel) supplementation at 1000g/ton of feed significantly improved body weight gain and feed conversion ratio in broilers. However no effect on feed intake and digestibility of nutrients was observed from 1st to 5th week of trial. However further research needed to determine the effect of enzyme supplementation on nutrient digestibility and broiler performance. ····· 10361100940
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray High altitude farmer has learnt from his long and close association with pests which aid him in reducing pest populations to low levels without chemical interventions .At the same time, population increases in eco fragile high altitude ecosystem are placing ever-greater demands upon the ecological services that is, provision of clean air, water and wildlife habitat of a landscape dominated by farm defines bio-intensive IPM as the highest level of IPM.Most farmers are resource-poor and cannot afford to invest much on agrochemicals but fortunately there is tremendous folk knowledge (ITK) on plant protection measures which can be utilized for this purpose .This book is a treatise on environmental problems associated with the intensive physical and chemical control of highly simplified crop production systems, and the largely untapped opportunities for knowledge-intensive bio ecological design and management of more complex systems. It summarizes the potential integrated pest and disease management practices which are necessary for reducing reliance on the use of synthetic chemicals and saving environment deterioration. ····· 10361101062
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The fast dwindling populations of giant African snails due to intense human predation has necessitated search for methods of farming. This book is therefore directed to people who are interested in the new venture. Depending on the level of investment and commitment,what may start as trial and error could be developed to good living. Opportunities exist for those who are willing to invest time, resources and patience in snail farming. It is a practical guide to farming of giant African snails with a recommendation of outdoor farming for tropical countries and information about indoor breeding. The book outlines the main types of edible land snails and their characteristics, methods of snail farming, husbandry practices, snail trade and snail dishes. A model farm is recommended for the tropics. Information given in the book should help every snail farmer understand why he/she does what. The general reader would be informed and educated. Snail farming is gradually being integrated into curricula of college programmes and the book should provide vital information for such courses. Welcome to the world of these fascinating and peaceful animals who hasten slowly. ····· 10361102247
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Regenerative processes are very common in echinoderms. Regeneration takes place through the recruitment of progenitor cells (undifferentiated or differentiated) accumulating in the lesion region. The crucial point of the `progenitor` elements involved in regenerative processes, in terms of cell recruitment, sources and fate, is a central problem, relevant for its topical interest. Crinoids such as the feather star Antedon mediterranea possess a spectacular regenerative potential. The echinoid Paracentrotus lividus possess a large amount of coelomic fluid containing several cells, many of which contribute to repair (test regeneration) and are apparently quite similar to those already characterized in A. mediterranea. As far as these experimental models are concerned the present book provide an extensive in vitro approach which represents the first attempt to culture the cells involved in echinoderm regeneration processes already described and partly characterized in vivo. Integrate and comparative analysis are addressed to identify the different cells and their involvement in processes such as migration, proliferation, differentiation and de-differentiation. ····· 10361113985
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book offer a comprehensive and biodiversity study of Mites deal with species diversity and the interrelationships with nature. The book thoroughly covers the fundamental as well as applied aspects of the subject. Specimens were collected from various villages and forest area including agriculture area of the Junagadh district, Gujarat State, India. The book is meant for graduate, postgraduate students and researcher of zoology, Agriculture and entomology of most of the colleges and universities. ····· 10361114775
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Bumble bees are one of the important wild pollinator all over the world. These are advantageous over honeybees due to long working hours, long tongue length, and their capacity to forage at low temperature and low light intensities. Declining honey bee population due to various pest and diseases it necessitates the conservation and augmentation of wild pollinators like bumble bees and solitary bees.Keeping in view the domicilation work of bumble bees (Bombus sp.) was taken up for the first time in India during 2006-07. We successfully raised the thirty seven per cent progeny for 7-9 months under artificial confinement. Diurnal activity was also recorded at their natural nests from dawn to dusk period. Foraging activity on different fruits and vegetables was recorded. Developed colony was used for cucumber pollination grown under polyhouse the first time in India. ····· 10361114888
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book describes advantages and disadvantages of House sparrow and how it damages the crops as pest. What control measures people have been and are taking to control this pest. Different mthods have also been described to prevent the damages they cause to agriculture. Breeding behaviour of House sparrow has been described in detail. Type of feed young and adult feed on has been described in detail. Parental care of this bird has also been described. In the second part effects of a homeopathic medicine, Natarum muraticum have been investigated. When this medicine was fed to male and female House sparrow it drastically damaged the reproductive potential of both male and female house sparrow. The birds fed on Natrum muraticum totally failed to produce sperms and eggs and were no more fertile. ····· 10361115033
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Different factors thought to have effect on the mortality of lambs w.r.t. 3 breeds of sheep have been presented. Kacchi breed had the highest lamb mortality (14.2%) followed by Thalli breed (11.9%) while that of Pak-Karakul was the lowest (7.3%). Female lamb had the highest overall mortality rate (10.2%) while that of male was the lowest (8.8%). The lamb had the highest overall mortality rate (36.7%) between age group of 91-120 days (3 months) while between 1-30 days (1 month) of age, mortality was the lowest (4.7%).The lamb had the highest overall mortality rate (12.2%) during spring while it was the lowest (5.5%) in summer. The lamb had the highest overall mortality rate (43.7%) due to pneumonia followed by gastro-enteritis (19.2%) and heat stroke (10.7%). The lamb had the highest overall mortality rate (44.1%) of the dam having 3 years of age followed by 4 years of age of dam (25.7%). Proper feeding of the pregnant ewes, controlled breeding and better management before lambing can play an important role in reducing the mortality. ····· 10361115601
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Over the last few years, the use of histological, histochemical and ultrastructural studies with scanning and transmission electron microscope become a good tools in Comparative Anatomy studies of some parts of the digestive system of different vertebrates.Three separate parts buccal cavity, intestine and liver of fish and the tongue of birds were investigated. The investigation should help shed some light on these parts relating the structure to the function.These studies should be especially useful to comparative anatomists, histologists, pathologists, ornithologists and marine biologists. ····· 10361115880
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray La familia Elateridae es considerada, tanto la novena familia más diversa de Coleoptera, como también la más diversa de la superfamilia Elateroidea, con aproximadamente 10.000 especies descritas, de las cuales, 2.500 se encuentran en el neotrópico. Colombia es considerado como un país megadiverso, sin embargo la biodiversidad de insectos en Colombia no se conoce completamente, ni se conserva de manera adecuada y la acelerada transformación de los ambientes naturales, con la consecuente extinción de especies vegetales y animales, confirman la urgencia de estudiar la biodiversidad del país. Esta escasez de conocimientos en torno a los diferentes grupos, especialmente Coleoptera, dificulta considerablemente dichos planes de conservación. Considerando el estado actual del conocimiento de los elateridos en nuestro país y, en particular, en el área comprendida por el Valle del Cauca, es más que pertinente llevar a cabo un estudio taxonómico de los elateridos del valle del cauca que permita conocer la biodiversidad local y asi mismo nacional. ····· 10361117538
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Community and diversity of waterfowls in Santragachhi Wetland have been studied in four months during the winter period of 2008-2009, which is the season for migratory water birds. The diversity has been studied with respect to cumulative species richness and relative abundance, Shanon-Weiner diversity, bootstrap richness, Chao 1 richness, Coleman rarefaction richness. Attempts were also made to find a correlation with these parameters to the photoperiod of the day. Some of the potential threats of the wetland as well as the inhabitants have also been noted. In this current project the status and distribution of waterfowls in Santragacchi wetland were recorded and their description were described. ····· 10361117928
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The aim of study was to determine the contamination in the meat and organs liver, lungs, kidney and muscles reared in pesticide spraying areas of Gujrat, Pakistan. Because no such published information is available in this region.The meat and organs such as liver, lung, kidney and muscles were collected from different locations of intermittent areas of Gujrat city.The pesticide analyzed in the collected organs (n=80) with high performance liquid chromatography techniques. The residue analysis revealed that about 0.5444 % kidney, 0.617933% liver, 0.431867% lungs and 0.819733% muscles samples were contaminated with dimethoate. The trend of pesticide contamination was observed as Muscles Liver Kidney lungs. Pesticides residues in organs were found higher than the Maximum Residual Limit (MRL) established by the international health. ····· 10361118142
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The day by day progress of Pakistan has resulted in the development of industries and towns. Contamination is a problem which is related with this progress. Gujranwala District is one of the most developed and industrialized parts of Pakistan selected for this research. In current study seven heavy metals Hg, Pb, Ni, As, Cu, Cd and Ag were detected in the meat samples of cattle (Buffaloes). Out of these, mercury, lead, cadmium and arsenic are the principal lethal metals. The reason for selecting cattle is that they feed on vegetation and are infected by metal pollution as much as the humans. The main reasons for pollution by metals are industries, automobiles, polluted water, pesticides in fields and contaminated soil. ····· 10361118246
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Impact of insecticide treated nets were studied in the mid 90 ies showing significant reduction of all cause children mortality less than 5 year and on clinically confirmed malaria. Since then, bednet studies focused on vector impact, while technology changed from dipping to long lasting pre-treatment. Preliminary WHO recommendation of LLIN is based on short term studies of vector impact and wash resistance. However, most loss of insecticide is not due to washing Preliminary WHO recommendations of LLIN are based on short term studies on vector impact and wash resistance. However, in Sub-Saharan African settings, loss of insecticide is not primarily due to washing, but to handling and evaporation. Netprotect a second generation LLIN with a preliminary WHO recommendation was evaluated in aspects of malaria vector control, epidemiology and durability.This book is useful to reseachers, policy makers and medical workers in malaria control. ····· 10361118422
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present work revealed the destructive effects of ultraviolet radiation-A on the morphological, histological and biochemical characteristics of the early developmentalstages of Aafrican catfish, Clarias gariepinu (Burchell, 1822). These destructive effects were also studied on the developmental stages in terms of incubation time, hatching rate, mortality rate, morphological malformations and histopathological changes in some organs. The genotoxicity caused by UV-A was studied. ····· 10361118745
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray All crocodilians have a particular category of signals used as advertisement calls during the mating season. Each call is a combination of a few components with different physical properties, such as body postures, vocal calls, headslaps, and infrasound vibrations. These components differ in their capacity to carry information about the animal`s status and location, and their use is adapted to habitat structure. Vocal sounds are used more in fragmented aquatic habitats where they are more effective, while slaps are used more in continuous aquatic habitats. A comparison of signaling and preferred habitats by extant crocodilian species, as well as of signaling by allopatric conspecific populations inhabiting different habitats, confirms this theory. But in populations inhabiting mixed habitats, individual animals do not adjust their signal composition to habitat structure, which means that the observed differences between populations and species are evolved adaptations. In the course of the study, novel information on signaling was obtained for many crocodilians, providing insights into their ecology and evolutionary history. ····· 10361119097
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Tapinoma melanocephalum have a special place in the myrmecological studies because of their typical behavior. They have been found significant in many of the social, economic and scientific studies. The present work describes in details about the behaviour, habitat, fooding habits, nest architecture of Tapinoma melanocephalum.To conduct the study, site has been selected in the regions of gardens, agricultural fields and roadside areas which are located in the city Varanasi, Uttar Pradesh, India. Following standard procedures and techniques of myrmecological studies, nests were excavated to collect the necessary data and ant samples for microscopic studies in the laboratory. Statistical parameters have been used to analyze their population, nest architecture and dimensions. ····· 10361119464
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The adults were yellowish green in colour, wedge shaped and walked diagonally in a characteristic manner. The nymphal stage passed through five instars. The female inserted eggs into leaf tissue. The total duration of life cycle was 18 to 30 days in case of male, while it was 20 to 34 days in case of female at an average temperature of 31.30 ± 1.96° C and the relative humidity of 73.96 ± 3.02 per cent. The genotypes / varieties GG-5 and GG-2 were found least susceptible to jassid. Two type of predators viz., Chrysoperla carnea (Stephens) and Crossopalpus sp. were found in the field. The treatments monocrotophos 0.04 per cent, methyl-o- demeton 0.025 per cent and dimethoate 0.03 per cent were found most effective for the control of jassid under field conditions. Considering the yield and economics, two sprays of monocrotophos 0.04 per cent gave maximum yield of groundnut pod and haulm (2014 kg/ha and 2812 kg/ha) and the highest cost benefit ratio of 1:19.85 followed by methyl-o-demeton 0.025 per cent (1910 kg/ha and 2622 kg/ha) (1:17.94) and dimethoate 0.03 per cent (1806 kg/ha and 2413 kg/ha) (1:18.27). ····· 10361119557
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray On Green Python details the results of four years of research into the conservation and ecology of Morelia viridis. This was the author`s PhD topic while he was at the Australian National University. It represents the first study on the species, and is significant in its breadth and extent of coverage. The book covers growth and aging, reproductive activity, behaviour and activity patterns. It also solves the adaptive evolution of different colour morphs for juvenile and adult individuals. ····· 10361119774
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Cestodes are endo-parasitic tapeworms which during their life cycle require at least one intermediate host and a definitive host. Many tapeworms have a two-phase life cycle with two types of host. The adult form lives in the gut of a primate. Gravid proglottids leave the body through the anus and fall onto the ground, where they are eaten with grass by grazing animals like cows that act as intermediate hosts. The larval forms or the juveniles migrate and establish as cysts in the intermediate hosts body tissues such as muscles. They cause more damage to this host than it does to its definitive host. The parasite completes its life cycle when the intermediate host passes on the parasite to the definitive host. The morphology of the cestode parasites isolated from the open air Poultry birds from different regions of Kashmir Valley has been described. ····· 10361131846
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The red flour beetle is the most destructive pest of stored products. Chemical pesticides have been used for a long time, but have serious drawbacks. Efforts are being made to minimize the use of harmful insecticides through the use of indigenous plant extracts to protect stored grains. Botanical products are environmentally safe, less hazardous, economic and easily available.The present book describes the toxic effect of leaf and seed extracts of Bazna (Zanthoxylum rhetsa), Ghora-neem (Melia sempervirens), Hijal (Barringtonia acutangula), Karanja (Pongamia pinnata), Mahogoni (Swietenia mahagoni) and Neem (Azadirachta indica) in controlling red flour beetle. It has been observed from the study that the botanicals had direct toxic effect, repellent effect, residual and grain protectant effect against red flour beetle. among the tested plants Neem extracts showed the most toxic, repellent, residual and grain protectant effects, where seed extract is more effective than leaf extract. Neem is available throughout the country and the farmers may use this plant in their storage structure for the management of stored grain pests. ····· 10361131881
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Both fresh and marine edible crustaceans Procambarus clarkii and Erugosquilla massavensis, respectively, are now important components of our local aquatic fauna in Egypt that have a small yet growing economic importance in our markets. So, the purpose of the present work was, therefore, to assess the protein, amino acids, fatty acids, minerals, vitamins, protein electrophoresis and dendrogram analysis of their extracts for the first time in Egypt which may be in the future play an important role in some pharmaceutical industries and may be uses as a specific health foods (functional supplement). Also P. clarkii and E.massavensis contamination with heavy metals and its relationship to public health have gained considerable concern in the last few years, so the concentrations of some heavy metals in P. clarkii and E.massavensis collected from a chosen area were determined. ····· 10361132298
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The biodiversity of the Persian Gulf and the Oman Sea is unique: corals, dugongs, birds, sea turtles, oysters, jellyfish, sea star, sea cucumber, anemones, fishes, crabs and many other species even whales and whale sharks live in this marine ecosystem. In this atlas, we show the result of 6 years of labour collecting fish samples and more than 1 year collaborating of scientists from Iran and Spain. ····· 10361132362
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Of all parasitic diseases, Malaria remains not only the greatest killer but also the most widespread particularly in Africa and the tropics. From Quinine to arteminisins, herbal medicine has proved useful in the development of effective conventional antimalarial drugs. This work describes the antiplsmodial effects of some medicinal plants from Oloolua Forest Kenya against the rodent malaria parasite, Plasmodium berghei and the Fifth human malaria parasite, Plasmodium knowlesi. Relevant protocols in herbal medicine and cell culture have been lucidly described and illustrated, making it ease to follow. The results have been quantitatively depicted and discussed. I have no slightest doubt this book will be of direct benefit to students of Biomedical and Biological Sciences, as well as those in Pharmacognosy and herbal Practitioners. ····· 10361132366
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Among the four species of bear in India, the Himalayan brown bear (Ursus arctos) is least distributed and occurs in very low densities in the alpine region of the Greater and Trans Himalayan zones in India. It is rare and usually encountered between 2800m to 4800m elevation. Population of brown bear is largely confined to the western and northwestern Himalayan regions in India and distributed mainly in the states of Jammu and Kashmir, Himachal Pradesh, Uttaranchal and Sikkim. Schaller (1969) stated that the Himalayan brown bear is largely confined to rolling uplands and high forests of fur-spruce and alpine pastures.Due to increasing human population, expansion of agricultural land, livestock grazing pressure and collection of medicinal plants, both brown bear and black bear populations are disturbed and threatened. Forests, pastures and wastelands have been brought under cultivation to sustain increased demand of cereals and other food products . The unsustainable land-use patterns in rural areas have further altered the landscapes. As a result of the habitat modification, certain wildlife species have become ecological dislocate. ····· 10361132759
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Amphibians are important to the overall ecosystem balance. The large biomass of these amphibians makes them significant prey for other animals. The pesticides are widely used and have a variety of lethal and sublethal effects on non-target wildlife species. The present studies investigate the induced effects of two selected pesticide Lambda cyhalothrin (pyrethroid) and Monocrotophos (organophosphate) against frog Rana cyanophlyctis (Common Skittering Frog). After preliminary experiments of each under test compound, two different doses i.e. 0.1 and 1% were used and cholinesterase activity was noted in liver, kidney and brain of treated frogs. It was reduced upto 34.6 and 46.3% in liver, 25.08 and 57.1% in kidney and 31.64 and 50.7% in brain under the effect of lamda cyhalothrin. While under the effect of monocrotophos, cholinesterase decreased upto 37.7 and 57.7% in liver, 57.5 and 67.5% in kidney and 47.6 and 65.9% in brain, respectively. Based on present studies it is concluded that both pesticides are reduced the cholinesterase activities. The research techniques and information are helpful for graduate and research students of Environmental and Biological Sciences. ····· 10361132911
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This research was conducted from September 2007 to April 2008 on ecological aspects of the golden-rumped elephant-shrew (GRES) in selected forests along north coast of Kenya. Results show the GRES is only found within the protected Arabuko-Sokoke and Gede National Monument forests. An unrecorded species of elephant-shrew was discovered at Boni and Dodori Reserves and is undergoing tests to determine correct taxonomy. Density results indicate a 9% decrease in total GRES number while specific trends in ASF show population estimate of GRES at Cynometra forest have increased by 12% and declined at Brachystegia forest by 21% and by 50% in the mixed forest. Estimated GRES population at Gede was an estimated more than 20 individuals. An observation from the indigenous people showed lack of knowledge on endemic species within their area and this is one main factor why destruction of the forests was still a problem. Education emphasizing on importance of conservation of resources especially endemic species is therefore important targeting all age groups for conservation to be effective over many generations. ····· 10361132985
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The objective of this study was cytological research of four Myxozoa species. We counted cell populations in plasmodium M. pseudodispar with the help of flow cytometry and detected 2 populations in early (103 cells plasmodium) and terminal (505 cells plasmodium) stages of infection, up to 5 cell types in the 104 cells plasmodium. We carried the analysis of organic and non-organic substances in the valves of live and stored water Heneguya oviperda and Myxobolus pseudodispar spores using cytochemical methods and atomic-absorptional spectroscopy and it shows the high content of Si (up to 94 %) and the presence of Ca, Mg, Fe, Mn cations (Cu, Al, Ni, Cr in fewer amounts) out. We investigated nuclei in plasmodium, spores of three Myxosporidia species Zschokkela nova, Myxidium gasterostei, M. pseudodispar using confocal laser scanning microscopy and compared DNA amount in Z. nova spores of myxo and actinosporidian phases of the life cycle. The features of the structure of nucleus and nucleosomal fibrils were found and described chromosomes in the nuclei of the generative cells of the same species. ····· 10361133083
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray It is indeed a great pleasure to take this opportunity to express a deep sense of gratitude to my Research Supervisor and Guide Dr. A. Jawahar Ali, Reader, Dept of Zoology, The New College, Chennai, for his guidance, inspiration, encouragement in preparing the dissertation throughout its various stages, without whom I would not have completed my course. I am grateful to Principal, Prof. Dr. K. Altaff, The New College for his timely help of my study. I wish to express my special thanks to Prof Dr. M. Arumugam, Head of Dept in Zoology, University of Madras, Chennai, for his timely help and encouragement of my study. I would like to thank my father, mother, brother and my uncle who have rendered moral support and belief in ultimate goals. I wish to express my special thanks to Dr. P. Saravana Bhavan, Reader, Dept of Zoology, Crustacean Biology, Bharathiar University, Coimbatore, INDIA, for his timely help and encouragement throughout the course of my study. I am extremely grateful to my Publication LAP LAMBERT Academic Publishing GERMANY. For their keen interest and kind co-operation in this book. AuthorN. Manickam ····· 10361133414
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is concerned with the involvement of women in aquaculture in rural Bangladesh, which focus on the various fish farming activities of women to assess their impact on the life and livelihood of rural women fisher folk with a particular focus on the issue of empowerment. Based on qualitative and quantitative data from women fisher in Trishal Upazila of Mymensigh district in Bangladesh, it was evident that women were involved in various activities such as pond preparation, pre-stocking management and fry stocking, feed and fertilizer application, fish harvesting and marketing etc. It was also found that fish production has increased due to involvement of women. The study reveals that lack of sufficient fund, poor marketing facilities, and inadequate supply of fry and lack of technological knowhow to be the important constraints for fish farming of the area. Most of the women households in the study areas have improved their socioeconomic status through involvement in fish farming activities. It has been observed that participation in fish farming has empowered women in making decisions, controlling the asset, consumption and mobility. ····· 10361133429
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Monography on the species composition and ecological characteristics of insects living on one of the largest in Central Europe bogs `Yelnia` (North-West of Belarus). In the course of many years of field research, the author collected and analyzed great stuff. A specific complex of insects was recorded. It comprises an approximately small number of species with a high abundance of some of them. Many of the insects are highly specialized to the ecological conditions of the bog (tyrphobionts and tyrphphiles). These species are good indicators of any change in the specific ecological conditions of peat bogs. The insect fauna of the peat bog Yelnia is unique for the temperate zone as it includes of relict boreal, boreomontane, arctoboreal and subarctic species. From a zoogeographical viewpoint, the fauna composition of Yelnya has groups with a Holarctic or Palaearctic range. The specific composition of the peat bog Yelnia in general is close to the species of Northern, Eastern and Central Europe. ····· 10361133469
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The rapid industrialization and successful green revolution have introduced a large variety of chemicals into our environment. These chemicals entering ecosystems affect man, animal life, plant life and materials and exert serious health and ecological problems. Among synthetic insecticides, the number of synthetic pyrethroids were produced at the large scale and used by the farming community at the global level. These pyrethroids exert its toxic effect on insect and non target organism.It appears to be the best compromise between the effectiveness and disadvantages of insecticides ,being widely used to control a large variety of agricultural pests . In the present study blood has been used to assess the toxic effect of cypermethrin and cyhalothrin on albino rats. Blood can easily be obtained from the intoxicated rats and status of toxicity can rapidly be evaluated. The results of this study are thought to provide necessary baseline data on blood chemistry and hematology in experimental rats under control and treated conditions. ····· 10361133611
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A survey was conducted in the District Dir Lower, over a period of two years.Specimens of coccinellid beetles were collected from four major localities viz Maidan, Jandool, Timergara and Adenzai. Identification of these beetles showedthat 14 different species in 12 genera belonging to sub-families Coccinellinae,Chilocorinae, Scymninae and Epilachninae are present in the selected area. Inthe sub-family Coccinellinae 10 Species belonging to 9 genera were foundwhich are Coccinella septempunctata, Coccinella transversalis, Hammoniademediate, Hippodamia varigata, Menochilus sexmaculata, Oenopia sauzeti,Propylea leuteopustulata, Halyzia tschitscherini, Illeis confuse and Hypraspisrahatiana. In the sub-family Chilocorinae and Epilachninae Brumoides saturalisand Epilachna sp. species respectively were recorded and in Scymninae onegenus and two species were recorded which are Cryptogonus nepalensis andCryptogonus faizihanum. Out of 14 species from Dir Lower, two speciesHypraspis rahatiana and Cryptogonus faizihanum were reported for the firsttime from Pakistan and is therefore, a new addition to Coccinellid fauna ofPakistan. ····· 10361133654
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Studies have revealed that there are numerous toxic chemicals available in the market since World War II which can act like natural hormone and fool the body`s endocrine system. These endocrine disrupting chemicals or hormone mimics are called environmental estrogen or xenoestrogen. As many as 116 components have been identified as possible endocrine disrupting chemicals by European Commission in September 1999 out of which 50 endocrine disruptors including DDT, DDE, PCBs & even some pesticides like aldrin, dieldrin, heptachlor, kepone etc have been listed by WWF society. Environmental estrogens are ubiquitous in nature and are identified to be responsible for a number of physiological aberrations in human health as well as wildlife. A major area of concern has been in relation to the possible link between the effects of these chemicals and reported decline in sperm count along with the increasing reproductive disorders in living beings. This book particularly concentrates on industrial chemical Bisphenol-A, as a potential source of environmental estrogen. ····· 10361133700
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Over the last few years, study of attachment to confirm the histological impacts induced by some copepods and monogenean parasites of fishes are interest most of parasitologistes. With this present book, it has been satisfactory explanation as to how these parasites attach themselves sufficiently strongly in the gill chamber of their fish hosts to prevent dislodgment by the gill ventilating current. Moreover, this strong attachment of these parasites to their hosts leads to study the mode of attachment and histopathological impacts resulting from this type of attachment. ····· 10361133930
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray By the present investigation, it may be concluded that Karachi people have noticeable quantities of insecticides in their fat and blood. The blood samples have more pesticides than fat. The more quantity of dieldrin as compared to DDT indicates that DDT usage is now limited to some extent in Karachi as compared to twenty years early report of Mughal and Rehman (1973) showed heavily exposure of DDT in people living in this city. In contrast to this, people are now accumulating more dieldrin which may probably due to its greater usage in termite control programme. The reduction in ChE activity in pesticide exposed workers signals us that insecticides reduce the enzyme level by disturbing the normal biological functions of human. So in future, it is necessary to check the enzyme activity in pesticide preparing and manufacturing workers regularly and in general population yearly as the general population is also accumulating pesticides. Moreover it is also necessary to check total protein, - and -globulin, bilirubin, alanine and aspartate aminotransferases activity in pesticide handling people because any alteration in these measures may produce liver lesion and other disorders. ····· 10361133986
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In circadian rhythm research most experiments on scorpions were performed on immobile scorpions that were fixed to an animal holder or stage. This study introduces a new method that enables recording of the electroretinogram (ERG) and electromyogram (EMG) simultaneously in the unrestrained Egyptian yellow fat-tailed scorpion. The ERG includes electrical activity of photoreceptors of the median eyes to brief light flashes illustrating rhythms in sensory perception while the EMG records electrical activity of the muscles revealing circadian rhythms of locomotor activity. A specially designed aluminum `jacket` was properly fixed on the scorpion allowing for free movement during the continuous recording. This method is applicable to study the effect of various environmental, physiological, and behavioral parameters in scorpions over the course of several weeks. In addition, it can be applied to other similarly free-moving small terrestrial invertebrates. The developed method facilitates the analysis of the function of the scorpion s pectines and the effects of the substrate on circadian activities. ····· 10361134395
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray One crustacean shell and 24 gastropod shells related to 13 different families are collected and described from Ras Sudr region (northeast Gulf of Suez), Egypt. These are one species from cirripedia, one species from vermetidae, three species from Trochidae, one species from Turbinidae, one species from Neritidae, one species from Turritellidae, five species from cerithiidae, three species from Strombidae, one species from Fasciolariidae, one species from Melongenidae, four species from Muricidae, two species from Cypraeidae and one species from Naticidae. Thirty three bivalved shells related to 18 different families are collected and described from the Red Sea in the Ras Sudr region (northeast of the Gulf of Suez), Egypt. Three species from the Arcidae, 3 species from the Mytilidae, one species from the Glycymerididae, one species from the Limopsidae, one species from the Pteriidae, one species from the Plicatulidae, one species from the Pectinidae, one species from the Spondylidae, 6 species from the Chamidae, one species from the Lucinidae, 3 species from the Cardiidae, 2 species from the Tridacninae, one species from the Mactridae, one species from the Mesodesmatidae, etc. ····· 10361135602
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Vegetables are rich source of vitamins and minerals and possess free radicals and antioxidants which are essential for the maintenance of good health and resistance against diseases. They reduce the risk of diabetes, heart disease, stroke etc. During the present study pathogenicity of nematodes and their control using organic amendments, chemical nematicide and bacterial seed dressing are given in detail. This information is useful for nematologists, parasitologists, teachers and students. ····· 10361135776
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Overtime,the burden imposed by microbes has always plagued humans,the hospital environment,which is the only institution visited by peoples of all walks of life being no exception.Sociocultural beliefs and occupational practices play an important role on the incidence and prevalence of infections both in the community and hospital,especially in a polyethnic society.This book focuses on the influence of prevailing professional practices and the sociocultural milieu on patient care,and the occurence of community and hospital infections.Risk factors involved and records management skills and the incidence of infections are also given an indeph analysis.This,firstly using a descriptive study on patient records,and evaluating the state of knowledge of personnel on preventive measures and infection control,and secondly,a retrospective study performed by reviewing patients charts.Findings presented herein should help ameliorate healthcare and restore sanity to public health institutions,edify the general public on some harmful cultural practices that have a negative impact on health and finally help healthcare planners to adopt measures that can better the health of the community. ····· 10361135874
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Brain type and ovarian type aromatase in Japanese tiger puffer (Takifugu rubripes) play important roles in gonadal sex differentiation and interact with factors related to this process. Again, inhibition of aromatase in vivo and in vitro results in alteration of the aromatase isoforms followed by imbalance in potential sex steroids and irreversible masculinization. This book describes the role of aromatase isoforms in Takifugu rubripes in relation to gonadal sex differentiation, gonadal development and compares the activity of the two isoforms present in brain and gonads in producing potential sex steroid E2 and also in regulating androgen-estrogen balance. Moreover, this book provides important information on the aromatase gene and its interactions with different factors related to sexuality of tiger puffer which can be helpful for studying different genetic and endocrine factors related to gonadal sex determination, differentiation and development of this fish. ····· 10361136019
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray En este libro se analiza cómo reparten el alimento entre los pollos el alzacola, la urraca y el gorrión común. En las tres especies, los padres cebaron preferentemente a los pollos que solicitaron alimento más cerca de ellos y con mayor intensidad. Existe, por tanto, una relación entre el comportamiento de los pollos y la forma en que los padres reparten el alimento dentro de la nidada. En el alzacola, cuanto más hambrientos estaban los pollos mayor fue su intensidad de petición, y los pollos saciados disminuyeron su intensidad de petición y la proximidad a los padres. Esto sugiere que estos comportamientos son indicadores de la necesidad de los pollos, y explica por qué los padres responden a estos comportamientos en la forma observada. No obstante, hubo diferencias entre especies en la importancia del tamaño de los pollos como factor en las normas de reparto del alimento: En el alzacola y el gorrión todos los pollos fueron tratados igualmente, mientras que en la urraca los pollos más grandes consiguieron más alimento. ····· 10361137237
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The Asiatic Wild Dog (Cuon alpinus) or Dhole is one of the least studied social carnivores in the world. IUCN estimated its wild population fewer than 2500 and listed it as endangered animal. This book presents the first hand information regarding dholes from Nepal. Dhole study has been carried out in KCA which lies in north-eastern part on Nepal linking India at east and China at north. First camera trapping effort in KCA becomes successful to establish the presence of dholes in KCA, Nepal. Dholes are only canids distributed from tropical heat to the freezing cold. This book provides the information regarding status, distribution, habitat preference on the basis of camera trapping records, and reported killings and assessment of human-dhole conflict on the basis of interview surveys, and field observation. This book is useful to those who are interested to know wild dogs, their behavior, and ecological importance in nature. Furthermore, this book would be valuable for researchers who are researching wild dogs. ····· 10361146192
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The soil factors influencing the host prevalence of tungiasis were investigated in this study. The soil condition is an important habitat for the development of T.penetrans.Thus, understanding how the soil condition influence the population of Tunga penetrans would be an essential control strategy. The soil factors investigated during this study included soil moisture, organic matter content, soil pH, soil texture and soil colour.Soil factors influenced the prevalence of tungiasis by up to 33% (P=0.001) and the T. penetrans population by up to 39.7 % (P=0.000).Organic matter content had an significant relationship to tungiasis prevalence (P=0.179) and population (P=0.615). Soil texture was also found to have no relationship with T. penetrans population (P=0.615) and prevalence of T. penetrans (P=0.179). Soil colour also had no influence on prevalence of T. penetrans infestations. (P=0.553) and population T. penetrans (P=0.660).The soil pH influenced the population of T. penetrans (P=0.000) but not the prevalence of T.penetrans infestations (P=0.532). The soil moisture also had an effect on T.penetrans population (P=0.000) and not on the prevalence of tungiasis (P=0.063). ····· 10361146220
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Marine turtles in Pakistan are protected, either directly or indirectly, through a series of legal and regulatory provisions. Five marine turtle species, including green turtles (Chelonia mydas), olive ridley turtles (Lepidochelys olivacea), hawksbill turtles (Eretmochelys imbricata), loggerhead turtles (Caretta caretta) and leatherback turtles (Dermochelys coriacea) have been recorded from the Karachi coast and Balochistan coast. During the present study, we surveyed all known and potential turtle nesting sites, and identified six new nesting beaches, including Mubarak village (Karachi coast), Gwadar (West Bay), Pishukan, Ganz, Sonmiani, and Hingol National Park (Balochistan coast). Nesting of C. mydas and L. olivacea in Pakistan occurs at Hawkesbay and Sandspit along Karachi Coast, and at Ormara and Jiwani along Balochistan coast. The research techniques and information are helpful for wildlife BS., MS and Ph.D students, wildlife biologists, wildlife managers, wildlife conservation organizations etc. ····· 10361146319
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The Hingol National Park is the most unique and important national park of Pakistan, because it consists of six ecosystems including Arabian Sea, Rugged Mountains, Desert, River, Estuary, and open plains. The park has rich biodiversity of mammals, birds, fish, reptiles and amphibian species, including Ibex, Urial, Chinkara, Dalmatian Pelican, Spotted-billed Pelican, Houbara Bustard, Imperial Eagle, Sooty Falcon, Flamingo, fish Mahsheer, Marsh Crocodile, Green Sea Turtle, Skittering frog etc. In the present study, current status of the mammals of Hingol National Park has been determined in selected sites. During the period from 2002 to 2007, a total of 24 species has been recorded comprising of 3 large, 8 medium and 13 small mammalian species. Three key species of large mammals have been studied. The present findings, research techniques and information are helpful for graduate and research students of wildlife, National Parks managers, wildlife biologists, wildlife conservation organizations etc. ····· 10361146564
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Amphibians are an important part of aquatic ecosystems, and decline of amphibian population is a major environmental issue. Pesticides can severely affect amphibians in a variety of ways, as destroy the natural biotic balance in agricultural soils and reduce the diversity and abundance of biodiversity with cascading effects at higher trophic levels. In the present study, investigations were carried out to evaluate the effects of organophosphate (Sandaphos and Titophos) and pyrethroid (Permakil) on the histopathology of frog Rana cyanophlyctis. It was observed that under the effects of Sandaphos, Titophos and Permakil, the necrosis was significantly observed in liver and kidney tissues of treated frogs. On the basis of present findings it is concluded that selected organophosphate (Sandaphos and Titophos) and pyrethroid (Permakil) both are harmful for frogs. The research techniques and information are helpful for graduate and research students of Biological Sciences, Environment and wildlife managers. ····· 10361146792
für 44.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Vitus Graber (1844 1892) war ein österreichischer Zoologe. Seinem Spezialgebiet, der Entomologie, trägt er mit einem zweibändigen umfangreichen Werk Rechnung. In dem hier vorliegenden ersten Band legt Graber seinen Fokus auf den Organismus der Insekten, den er präzise und detailgenau erläutert. Im zweiten Band legt Graber seinen Schwerpunkt auf eine vergleichende Lebens- und Entwicklungsgeschichte der Insekten. Dieser erscheint im Unikum-Verlag in zwei Teilen (ISBN 978-3-8457-4275-5 und ISBN 978-3-8457-4276-2). Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1877. ····· 10361139176
····· lezzter Preis 44.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Nachdruck des Originals von 1888. In diesem Buch von William Marshall (1845-1907), einem deutschen Zoologen, kann man den Stand der Kenntnis über die Meeresfauna in der zweiten Hälfte des 19. Jahrhunderts nachvollziehen. ····· 10361150723
für 46.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Zoologe Ulrich Duerst präsentiert im vorliegenden Band eine überarbeitete Fassung der Naturgeschichte der Haustiere von Martin Wilckens, dem Begründer der wissenschaftlichen Tierzuchtlehre. Ausführlich werden Herkunft und Entwicklung der modernen Haustiere erläutert, vom Pferd, Rind, Schaf und Schwein über Kaninchen, Hund und Katze bis hin zu Hühnern, Enten, Gänsen, Bienen und Schmetterlingen. Mit zahlreichen Abbildungen illustriert. Sorgfältig überarbeiteter Nachdruck der zweiten Auflage aus dem Jahr 1905. ····· 10361138777
····· lezzter Preis 49.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The objective of the present study was to evaluate the effects of pesticide permethrin against frog Rana tigrina. After preliminary experiments of the under test compound, two different doses were selected for the studies. These were 1 and 0.1%. Mortality count was made at 24 hours of post-treatment, untreated frogs was also kept as well. Estimation of protein content and cholinesterase has been carried out in treated frogs and compared with untreated. It was observed that at the dose of 1 and 0.1% permethrin treated frogs, a total reduction in protein contents was found to be 61, 16% in kidney and 89 and 87% in liver, respectively. While cholinesterase was found to be inhibited by 35 and 6.76% in kidney and 29 and 23% in liver, respectively, when frog were treated with permethrin at aforesaid doses. On the basis of present study, it is concluded that the permethrin reduced protein contents and enzyme cholinesterase activity after 24 hours treatment in the liver and kidney frog Rana tigrina. The research techniques and information are helpful for graduate and research students of Biological Sciences and wildlife. ····· 1036121582
····· lezzter Preis 49.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Five different bacterial strains were isolated from Cartap Hydrochloride applied agricultural soil. Plasmid profiling was performed to observe the different sizes of plasmids in those bacterial strains. These information will be proved beneficial for the isolation of pesticide degrading gene from these bacterial strains in future. The fragments of 992bp and 996bp of 16S rRNA gene were amplified for molecular identification which can be used for the molecular phylogeny of these bacterial strains. ····· 1036188032
für 49.41€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Howler monkeys are the largest among the monkeys in the New World and they are distributed across the tropical forests of Central and South America. A total of 10 different species have been recognized they include the red howler, red-handed howler, black-and-gold howler, Coiba Island howler, red-and-black howler, Guyana red howler, Bolivian red howler, black howler, Amazon black howler and mantled howler. The howlers have amazing prehensile tails and its fun to watch them feeding while hanging upside down by their tails. The author, a field primatologist with three decades of field research experience from Asia, Africa and South America, has studied two species of howler monkeys such as the red howlers in Venezuela and Trinidad, and the black-and-gold howlers in Argentina. In this monograph, the author has synthesized his long-term field research and presented data on ecology, social behavior and conservation. This monograph can serve as an introductory and reference text on primatology and animal behavior related courses in colleges, universities and institutes of higher learning globally. ····· 10361132816
Die Tierphysiologie ist für ein Verständnis der oft komplexen physiologischen Prozesse auf fundierte Kenntnisse aus einer Vielzahl anderer biologischer und chemischer Fachgebiete angewiesen. Dies ist das erste Lehrbuch, das eine integrative Darstellung der Tierphysiologie bietet - es konzentriert sich auf die wichtigsten Konzepte des Fachs und behandelt diese in ihrem zellbiologischen, biochemischen, genetischen und evolutionsbiologischen Zusammenhang. Einheitliche, vierfarbige und großflächige Grafiken und Flowcharts illustrieren die physiologischen Abläufe verständlich und anschaulich. Das Buch berücksichtigt neueste Forschungserkenntnisse aus Genetik und Genomik sowie neue Methoden und Modelle in der Biologie. Kapitelzusammenfassungen, Verständnis- und Transferaufgaben sowie ein umfangreiches Glossar und Sachregister erleichtern die Navigation durch das reichhaltige Fach der Tierphysiologie. Im Jahr 2007 wurde das Lehrbuch im Wettbewerb `Die schönsten deutschen Bücher` der Stiftung Buchkunst im Bereich Schulbücher, Lehrbücher ausgezeichnet.
Zoologie Der Klassiker unter den Zoologie-Lehrbüchern: aktuell, umfassend, reichhaltig bebildert.Umfangreiche Datentabellen zur korrekten Klassifizierung, Stellung der einzelnen Arten im Tierreich und Merkmalen.Klar strukturierter Text, der nie das Zielpublikum der Studenten aus den Augen verliert.
Praktikum Allgemeine Zoologie Modern: Durchgängig 4-farbige Bebilderung und mit klarer didaktischer Struktur der Kapitel.Bachelor-tauglich für verkürzte Praktika: Konzentration aufs Wesentliche und Arbeit mit Modellorganismen.Praxisorientiert: Zahlreiche Tipps für den erfolgreichen Laborkurs und praktische Ringbindung. ····· 10361185213
····· lezzter Preis 49.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Die englischsprachige Ausgabe der 2011 erschienenen Monografie `Der Baumfalke` (NBB Bd. 575, ISBN 978-3-89432-229-8), erweitert und aktualisiert um die neuesten Forschungsergebnisse.
Aus dem Inhalt:
- Systematik, Unterarten und Morphologie - Habitat und Verbreitung - Fortpflanzungsbiologie und Entwicklung - Populationsökologie und Bestandsentwicklung - Ernährungsbiologie und Jagdmethoden - Wanderungen, Zug und Winterquartier ····· 10361209803
····· lezzter Preis 49.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Marienkäfer sind uns seit frühester Kindheit vertraut. Ihre schwarz-rote Färbung ist uns ein Symbol für Sonne und Sommer. Die Tiere besitzen eine faszinierende Biologie und haben seit über hundert Jahren eine große Bedeutung für die biologische Schädlingsbekämpfung erreicht. So rettete Ende des letzten Jh. ein seltener australischer Marienkäfer die Citrus-Plantagen in Kalifornien und diese Art wird heute in über 40 Ländern gegen die Schildlaus in Citrus-Kulturen eingesetzt. Weltweit gibt es über 4000 Marienkäferarten. Die Autoren konzentrieren sich auf wichtige Vertreter der mitteleuropäischen Fauna und zeigen exemplarisch, wie Verhalten, Fortpflanzung und Entwicklung in dieser Insektengruppe ausgebildet sind. ····· 10361209811
····· lezzter Preis 49.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Abgesehen vom Schreiadler haben nur zwei Greifvögel unserer Wälder im Hochsommer noch Junge im Horst: der auf Wespen spezialisierte Wespenbussard (Pernis apivorus) und der Baumfalke (Falco subbuteo). Die späte Lage der Brutzeit hat auch bei F. subbuteo nahrungsökologische Ursachen, besteht dann doch ein reichliches Angebot an flüggen Kleinvögeln sowie Fluginsekten wie Libellen, Hautflüglern und Käfern. Früher wurde dieser kleine Falke als hochspezialisierter Schwalben- und Lerchenjäger (`Swalwenfänger`, `Lerchenfalk`) angesehen. Neue Untersuchungen zeigen, dass der Baumfalke nicht nur im Umkreis größerer Städte horstet, sondern das Stadtgebiet selbst, besonders die Stadtrandzone mit aufgelockerter Bebauung, erfolgreich auf Sperlinge, Grünfinken, Mauersegler und auch entflogene Wellensittiche bejagt. Der vorliegende Band wertet die Ergebnisse langjähriger Beobachtungen an Berliner und märkischen Baumfalken aus, in deren Verlauf über 1.500 Nestjunge mit Vogelwartenringen, teilweise auch mit Farbringen, markiert wurden. Fragen der Geburtsortstreue, des Festhaltens am Brutplatz, des Geschlechts, aber auch der europäischen Wanderwege und ihrer Risiken konnten so geprüft werden. Mit dem weltweit ersten, nur 5 g schweren Satellitensender wurden ab 2008 völlig neue Erkenntnisse über die afrikanischen Durchzugs- und Winterquartiere gewonnen, die in der vorliegenden, überarbeiteten und stark erweiterten Neuauflage präsentiert werden. Heute ist der Bestand des Baumfalken in Mitteleuropa gefährdet, und so will diese Monographie Kenntnisse vermitteln, die Voraussetzung für einen wirksameren Schutz sind. ····· 10361209827
····· lezzter Preis 49.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Viele Arten der im mexikanischen Hochland endemisch vorkommenden Hochlandkärpflinge (Goodeidae) sind vom Aussterben bedroht, da der Land- und Wasserverbrauch der Menschen ihre Lebensräume gefährdet. Das Verschwinden der Hochlandkärpflinge wäre ein großer Verlust für die mexikanische Ichthyofauna, ja für die gesamte Welt.Von den rund 40 Arten sind einige sehr farbenfroh und in jedem Aquarium ein echter Blickfang, andere wiederum sind eher unscheinbar und damit gut getarnt. Allesamt sind sie jedoch faszinierende und vor allem erhaltenswerte Fische. Die Besonderheit der Hochlandkärpflinge liegt in ihrer intensiven Brutpflege. Sie versorgen ihre Embryonen mittels Nährschnüren und gebären voll entwickelte Jungfische. Auch verhaltensbiologisch sind die Goodeiden äußerst interessant, wenngleich noch längst nicht alles erforscht ist und sie noch so manches Geheimnis hüten. In dem vorliegenden Buch haben international namhafte Experten aus Wissenschaft und Aquaristik ihr umfassendes Wissen über die Hochlandkärpflinge zusammengetragen. Dabei wird ein Bogen gespannt von der Systematik über die Morphologie, die Verbreitung und die Gefährdung im Freiland bis hin zum Verhalten, der Fortpflanzung und der Haltung im Aquarium, im Teich und im Zoo. Schließlich beschäftigen sich einige Autoren mit dem Art- bzw. Populationserhalt, sowohl in ihrer Heimat als auch in den Aquarien der Artenschützer in Europa und Nordamerika. Das Buch ist somit eine hochaktuelle Bestandsaufnahme zur Biologie der Goodeiden und ein dringend notwendiger Beitrag zu ihrem Schutz. Mögen die Hochlandkärpflinge die gegenwärtige Phase des unersättlichen Wirtschaftswachstums und der Naturzerstörung überstehen, bis der Mensch endlich wieder zur Besinnung kommt! ····· 10361209841
für 50.31€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In the present study, the density and abundance of zooplankton and it`s infections with ecto and endo parasites in Iraqi marine and estuarine brackish water of NW Arabian Gulf were studied. Sixty taxa of zooplankton were identified in the present study,35 taxa were copepods, while 25 taxa were belonging to other zooplankton. Eight taxa of Copepoda were recorded for the first time in the study area. Many type of protozoan parasites heavily infects copeopods and other zooplankton in the study area as follow: Ellobiopsis chattoni, Ellobiopsis sp., Thalassomyces sp., Blastodinium sp., Zoothaminium sp., Dinoflagellates, peritrich ciliates. These parasites recorded for the first time in Iraqi marine and brackish water as well as the Arabian Gulf except for Ellobiopsis chattoni, and Thalassomyces sp., which recorded in Kuwaiti waters before. ····· 1036199106
····· lezzter Preis 51.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ob im schaukelnden Flug oder mit ausgebreiteten Flügeln im warmen Sonnenlicht oder beim Nippen im Blütenkelch - immer verbindet sich mit der Wahrnehmung des feingliedrigen Schmetterlings eine zarte Berührung. Die Naturwissenschaft bietet Grundlagen zur Beschreibung seiner vielfältigen Erscheinungsformen, der faszinierenden Wandlung vom Ei über die Raupe zur Puppe und Imago. Nicht weniger bedeutsam sind die Wahrnehmungen und Darstellungen seines Wesens in bildender Kunst und Dichtung, die seine Schönheit und Harmonie zum Ausdruck bringen. Eine exemplarische Zuwendung zeigt sich in der Biographie von Maria Sybilla Merian, die als hochbegabte Künstlerin mit liebe- und ehrfurchtsvoller Beobachtung und sensibler Darstellung ein verantwortungsvolles wissenschaftliches Verhalten gegenüber Natur und Umwelt vorlebte, wie es für unsere Gegenwart und Zukunft von größter Bedeutung ist. So über Beobachtung und Studium hinaus das zarte Angerührtsein durch das Schmetterlingswesen nicht zu verlieren, vielmehr es über Bewunderung seiner Schönheit und über seine Wirkung auf Mensch und Kultur zu vertiefen, dem gilt das Bestreben dieses Buches. ····· 10361198966
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Rodents are the most widely distributed and largest groups of small mammals worldwide. They have been implicated to transmit zoonotic diseases which have played havoc in human society in the past. Today rodents still remains a threat to human and animal health. The current changes in the global climate may alter the ecology of the rodents which enable new rodents foci to be formed and rodent-borne zoonotic vectors to proliferate. This study reports the findings of rodents trapped in four distinct habitats in Peninsula Malaysia and the prevalence and distribution of their ecto and endoparasites.The zoonotic implications of the findings is also discussed with color pictures of some of the rodent parasites isolated. An overview of the biology and descriptions of the rodents examined is also included. This report provides valuable information for ecological parasitologists, biologists, researchers and students on the ecto and endoparasites of rodents in tropical Malaysia. ····· 10361340
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This study provided strong evidence to suggest that intestinal helminthiasis is a highly endemic and a serious public health concern, especialy among the children. The main aim of helminth control programs is to reduce and sustain the intensity of infection below that of associated morbidity. It is wisely said that` prevention is better than cure`, so steps should be taken to prevent the infection of gastrointestinal helminths rather than curing after infection. ····· 10361724
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Almost 300 species of helminthes parasitize livestock, including Paramphistomes (stomach flukes). Paramphistomes are the aetiological agents of the disease -Paramphistomiasis. Paramphistomiasis rank high in significance of helminthic diseases of sheep and cattle. The higher incidence of Paramphistome infections in domestic animals causes death of young ones, lowers productivity and thus leads to heavy economic losses. In order to develop various control measures to these helminthes we should have a clear understanding of host parasite relationship and a thorough understanding of the host parasite relationship can not be realized until a careful study is made on the biochemical nature of the parasite and its host. Histochemical study helps us to investigate qualitatively the biochemical pattern of different tissues. Such studies will increase our knowledge of worm physiology, which could further lead to deeper understanding of the well recognized host parasite interactions and such information would be valuable in designing control measures that are efficient and economical. This book presents the detailed histochemistry of two species of Paramphistomes of sheep and cattle. ····· 103613618
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Vultures can be regarded as a natural resource, like air and water which provide society with a number of services most probably the disposal of carrion, especially livestock carcasses. These services have an impact on human health, economic activity and on environmental quality. In 1980s, vultures were so abundant around human settlements and Gyps bengalensis was regarded as possibly the most abundant large bird of prey in the world. Populations of three Gyps species (G. bengalensis, G. indicus and G. tenuirostris) have dramatically declined within the past 10 years and have recently been listed as critically endangered by the World Conservation Union. Despite a long history of inquiry into the biology as well as phylogenetic studies of the Gyps vultures, only little is known about the genetic studies of this genus. In the present study, samples from four Gyps species (Gyps indicus, G. africanus, G. bengalensis and G. fulvus) were analyzed using microsatellites in order to determine the genetic structure and diversity among Gyps species populations. ····· 103613825
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Coastal ecosystems are not simply geographic locations proximate to the World s Oceans. But, they are the arrangement of complex, diverse and fragile ecosystems unique in nature. Coastal ecosystems such as mangroves, coral reefs, backwaters, estuaries, lagoons and sea grass beds, besides performing crucial coastal protection functions, provide rich breeding and spawning grounds for fishes. 24618 species of known fishes belonging to 4258 genera in 482 families under 57 orders have been listed by Nelson (1994) from world waters. Of this, 131 species of Elasmobranches belonging to 67 genera in 28 families under 10 orders and 2415 species of Teleosts belonging to 902 genera in 226 families under 30 orders have been listed by Alfred et al (1998) from Indian waters. This book describes the taxonomic features of 256 species of fin fishes belonging to 141 genera, 84 families and 19 orders with colour photographs collected from the coastal water of Great Nicobar Biosphere Reserve, East coast of India. The taxonomic key presented in this book make the user to identify the specimen very easiy. Many new distributional records of fishes in Indian Ocean also documented here. ····· 1036118265
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Fasciola hepatica and F. gigantica are found in all province of Pakistan. Naturally occurring and experimental F. gigantica infection in sheep and goat has been reported previously from Pakistan and other countries. During the present studies F. gigantica infection in both goat and sheep was found. It was more common in goat than in sheep. While F. hepatica infection was not found in goat but this infection was more frequently observed in sheep. This infection causes severe pathological conditions and affects the health and produce capacity. Fascioliasis is also of public health importance and human cases have been reported from several countries. This information is useful for parasitologists, sheep and goat raising agencies, farmers and researchers in this field. ····· 1036118384
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Aphids or plant lice, are small, soft bodied, sucking insects that feed on plant fluids. Heavy infestations reduce plant growth. Honey dew produced by Aphids makes leaves and flowers sticky and acts as a substrate for black sooty fungus. Their tremendous damaging potential related to their high breeding capacity, polymorphism, parthenogenetic and host alteration. About 4700 aphid species are known worldwide. About 803 species/subspecies belonging to 207 genera represents Indian Aphididae. The desert area represents less number of aphids species. The green citrus aphid Aphis spiraecola Patch (homoptera: Aphididae) is one of the most important polyphagous species found in India, is cosmopolitan. Aphis spiraecola is pestiferous over 65 plant genera especially Asteraceae, Brassicaceae, Cucurbitaceae, Fabaceae, Malvaceae, Polygonaceae, Rosaceae, Rubiaceae, Rutaceae and Solanaceae. Aphis spiraecola is pest of Mexican aster and Lemon, damages directly or indirectly mainly in Northeastern Uttar Pradesh, India. The biosystematical and bioecological study of the aphids furnishes useful taxonomical, biological and ecological infestation and is necessary for formulating and control programme. ····· 1036118469
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book different techniques were used for the production of amylases from Aspergillus niger It is highly desirable to increase the production and thermal stability of alpha amylases so that the process can be made more economical. Enzyme Engineering Group at Industrial Biotechnology Division, NIBGE, Faisalabad is actively involved in microbial strain development through random mutagenesis and genetic engineering. A deoxy D-glucose resistant (DG) mutant of Aspergillus niger was developed through gamma rays treatment. The present study was focussed on the optimization of growth conditions for maximum production of -amylases by parent and DG-resistant mutant derivative of Aspergillus niger. Moreover, kinetic and thermodynamic properties of -amylase from hyper producer mutant were also determined. This book is equally beneficial for the researcher, students, faculty members and the scientists with new knowledge of the production of enzyme. ····· 1036119069
····· lezzter Preis 53.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Durante las últimas décadas han surgido numerosas propuestas de métodos de medición de la biodiversidad para adquirir, analizar y manejar información ecológica y de manera eficiente y eficaz en corto tiempo y a bajo costo. El presente trabajo pone a prueba un método de Evaluación Ecológica Rápida (EER), que incluye técnicas invasivas y no invasivas como: visualización directa, trampas de encierro, así como la utilización de equipo de alta tecnología, las cámaras remotas o foto-trampas y la visualización de rastros respectivamente, aplicable a los ecosistemas llaneros, sobre dos comunidades de vertebredos. La experiencia se llevó acabo en un hato ganadero llamado `Mata de Guamo` ubicado en el Municipio Muñoz, Estado Apure. Se establecieron 22 estaciones distribuidas en dos ambientes 11 en el bosque de galería y 11 en el herbazal. Se obtuvo un esfuerzo total de 457 horas/hombre para los métodos de avistamiento, rastros y entrevistas y 512 trampas/noche para los métodos de cámaras remotas y trampas de encierro durante toda la experiencia. La biodiversidad en el área de estudio arrojó un total de 36 especies, 13 órdenes y 24 familias donde 20 especies fueron mamiferos y 16 reptiles. ····· 1036124341
····· lezzter Preis 53.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The findings reported in this work reveal that Dryopteris filix-mas aqueous and ethanolic extracts, its powder and pyrethrum extract caused depressive effect on the developmental stages of this pest and a significantly dose dependent alterations in the haemolymph and fat body biochemistry of the larva of rice-moth, C. cephalonica- a major pest of stored cereal commodities. Their order of toxicity is Pyrethrum extract D. filix-mas aqueous extract D. filix-mas ethanolic extract D. filix-mas powder. These biopesticides disrupt the metabolic balance of the larva resulting into reduced total protein level, decreased DNA, RNA levels, RNA/DNA ratio, activity of alkaline phosphatase and glycogen content and enhanced amino acid level, reducing sugar level and acid phosphatase activity. These biochemical perturbations in the metabolic frame work may impair the physiological fitness of the larva and thereby contribute to the lethal action of the biopesticide. D. filix-mas is comparatively less effective than pyrethrum extract but since pyrethrum extract is much costly, so, D. filix-mas may be preferred for the effective control of C. cephalonica and other lepidopterous pests. ····· 1036125002
····· lezzter Preis 53.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Synthetic insecticides have been the major control method of insect pests since 1950s. The widespread and unwise use of insecticides has resulted in the development of insect strains that are resistant to insecticides. The level of insecticide resistance was evaluated in two economically important stored grain pests, Tribolium castaneum (Herbst) and Rhyzopertha dominica (Fabricius) in the present study. Resistance level was checked against one organophosphate and four pyrethroid insecticides by using filter paper method and residual film method. Mortality was recorded after 48 hours of treatment. Resistant insects were identified on the basis of their LC50 values. T. castaneum (H.) appeared to be more resistant as compared to R. dominica (F.). Results indicated that deltamethrin 2.5% SC was more toxic of all test insecticides while DDVP 50% EC was least toxic. ····· 1036125032
····· lezzter Preis 53.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The Sunda Colugo (Galeopterus variegatus) is one of the enigmatic species that inhabit the tropical rainforest of South East Asia. Due to the difficulties in finding and tracking this nocturnal arboreal mammal in its free ranging habitat, the Sunda Colugo had received little attention. Most of the information is only shared among researchers while leaving other group in lack of understanding about this species. Thus, it is important to raise awareness about the existence of this species especially to other part of the world. Most people confused the Sunda Colugo with the Flying Squirrel while others are not even aware of the existence of this species. This book presents the roosting selection, diet preferences and behaviour patterns of the Sunda Colugo in its free ranging habitat in Bako National Park, Sarawak, Malaysian Borneo. ····· 1036125331
····· lezzter Preis 53.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The growing emphasis on environmental and food safety has intensified interest in development of biological control as a means of controlling pests. The study was conducted in the croplands of Faisalabad District. Main focus was on predator prey relationships of some of the predominant predator groups belonging to orders Coleoptera and Hymenoptera with some known major pest species in four major crops viz. sugarcane, fodder, wheat and mustard coccinellid and carabid predators and aphid pest species occurring in considerable numbers were selected from the field data to ascertain the probable interactions among their populations. Predator prey relationship was assessed from their monthly abundance ratio. Predator-prey relationship of important predators with major prey species was ascertained by DNA/PCR based molecular gut analysis. Laboratory study on predation rate in selected coccinellid (adult and larva) and hymenopteran (adult) predators on some major aphidid and cicadellid pests was also studied. Further studies on predator-prey relationships of insect species need to be done, both in the field and laboratory to successfully incorporate them into IPM programs. ····· 1036125348
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Molluscicides have a history of success and failure in schistosomiasis control. High cost of imported synthetic compounds, along with increasing concern over the snail resistance to these compounds and their toxicity in non-target organisms, has given a new impetus to study plants molluscicides. Three screens were developed to investigate new plant molluscicides from family Euphorbiales. In the preliminary screen, the aim was to identify the plants parts which had no molluscicidal activity and those which did to the snail Biomphalaria pfeifferi and allowed for determination of the LD50 and LD90 values. In the secondary screen, the molluscicidal activity was carried out in which factors that affect the molluscicidal performance under field conditions were investigated by laboratory simulation. For the definitive screen, most stable plant molluscicide was examined for its toxicity towards snail egg masses, other snails and non-target organism. Active components came in later stage of definitive evaluation together with studies of toxicology. Histopathological studies of different organs of treated snails were carried out and compared with the normal tissue from control snails. ····· 1036187932
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Oxytocin is a neurohormone produced in the hypothalamus that acts primarily as a neuromodulator in the brain and central nervous system. Oxytocin is synthesized in many organs other than nervous system that included the pancreas, thymus, adrenal gland, testis and ovary, and is known to exert paracrine function in these tissues. It is released in the systemic circulation to exert multiple central and peripheral functions, including milk ejection during lactation, uterine smooth muscle contraction during labour, control of social and sexual behaviours, regulation of natriuresis and control of cardiovascular homeostasis. This book focuses on the use of oxytocin in dairy practice, where oxytocin injections are administered to cattle before milking to cure disturbed milk ejection caused by reduced oxytocin release. Oxytocin is administered at supraphysiological dose to facilitate removal of residual milk. This book demonstrates the effects of regular administration of oxytocin on animal physiology, milk composition, plasma cortisol and insulin and will add new research and knowledge to the hazardous effects of oxytocin that it contributes to the lactating animals. ····· 1036188359
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Polycystic ovary syndrome (PCOS) is the endocrine disorder in women of reproductive age and affect almost 10% of the female population. It is the main cause of menstrual disturbances, anovulation, decreased FSH levels and increased levels of LH, estrogens and androgens, hyperandrogenism, hirsutism, metabolic disturbance, hyperinsulinaemia. This book provides valuable information about the effect of Testosterone in inducing polycystic ovaries in female rabbits (Oryctolagus cuniculus) by changing endocrine and biochemical parameters. Efficiency of metformin was observed in PCO animals for the treatment of syndrome. Polycystic ovaries syndrome is induced in female rabbits by daily administration of testosterone. Testosterone alters gonadotropin secretion, Estradiol and insulin concentration. The use of insulin sensitizers can be suggested in most patients with PCOS. Insulin sensitizers decrease insulin concentration, improve insulin resistance, lowers hyperandrogenism and improves infertility. Metformin is the oldest used insulin sensitizer for the treatment of glucose intolerance, lowers glucose levels and decreases the production of steroidogenesis. ····· 1036188360
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Microcavia australis es un roedor nativo de Sudamérica, diurno que vive en grupo. El objetivo de este estudio fue analizar y comparar la sociabilidad en dos poblaciones, en desiertos del Monte que difieren en condiciones climáticas, vegetación y riesgo de depredación con el fin de reconocer que factores influyen en la sociabilidad. La sociabilidad del cuis chico estaría afectada por condiciones climáticas extremas (amplitud térmica) que llevarían a la formación de grupos sociales con mayor número de integrantes para poder termorregular socialmente, en consecuencia habría mayor cuidado extra parental de la camada intra-grupo y mayor complejidad social. También influiría el riesgo de depredación y la estructura vegetal que inducirían a mejorar la eficiencia en la estrategia antidepredadora ya que viviendo en grupo reducirían el riesgo de depredación. Las limitaciones en la calidad de dieta, energía y agua llevarían a una reducción del costo energético en excavación y comportamiento agonístico. El sistema de apareamiento promiscuo y el número de crías por hembra tendrían un fuerte componente filogenético ya que no mostraron diferencias ante distintos factores abióticos y bióticos. ····· 1036190949
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Indiscriminate use of pesticides contributes to elimination of parasitoid guild and development of pesticide resistance. As part of classical biological control, two parasitoids Diadegma semiclausum and Cotesia plutellae were imported from Taiwan and South Africa, respectively and released in the highlands and semi arid areas of Kenya. Two years after the release, research was conducted to investigate the role of wild crucifers on diamondback moth and its parasitoids. The wild crucifers were found to act as refugia for both indigenous and exotic parasitoids and were suitable for parasitoid development. Parasitoids migrated from the wild crucifers to cultivated fields. It therefore would be beneficial to leave weeds as a resource for the natural enemies that inhabit the ecosystems as they act as alternative hosts and provide refugia to parasitoids that risk extinction from pesticide application. The information in this book is intended for use by Masters and PhD students, researchers in IPM especially biological control, ecologists, and biodiversity conservationists. ····· 1036191406
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Pearls have been known to mankind since the beginning of civilization. The success of the pearl culture industry depends on the high rate of production of quality pearls. The value of a pearl depends on its quality, size, shape, colour and lustre. Being a product of biological origin, individual variations are bound to occur in each pearl. The secretion of the mantle or the pearl-sac, which leads to the formation of the pearl, may be organic or inorganic or both in origin, with unpredictable and subtle variations in structure and composition. The final product may range from the finest to the trash. Even under the highest possible human control, the quality of cultured pearls cannot control absolutely but can considerably improve through appropriate care in surgery and during farming. Only the size and shape of the cultured pearls are under the control of the pearl culturist. However, the colour and luster, which depend on the secretion of the pearlsac, can also improve to some extent by proper understanding of individual biological and physiological factors as well as the environmental conditions of the culture farms, which influence the formation of pearls. ····· 1036191515
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The Pantanos de Villa Reserved Zone is one of the few coastal wetlands protected within the urban area of Lima, Peru. The spread of knowledge over flora and fauna has helped develop environmental education plans to improve public awareness about the importance of preserving this wetland. This work summarizes the knowledge of the diversity of spiders through a complete and detailed inventory of species as well as variations of the spider communities caused by climatic influences. This contribution intends to expand the knowledge of Peruvian spiders fauna and hopes to encourage all readers interested in learning more about these fascinating arthropods to understand the importance of these organisms in a wetland ecosystem. ····· 1036192133
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Diabetes mellitus is a hyperglycemic clinical manifestation due to a dysfunction of metabolic systems (carbohydrate, lipid and protein metabolism) and is one of the most common disorders of endocrine. It is usually recognized as a result of the abnormal secretion of insulin by pancreatic -cells, inability of the insulin to stimulate the peripheral utilization (muscles and adipocytes) and increased endogenous glucose production by liver. DM is classified as Type 1 and Type 2 diabetes. The cause of the Type 1 diabetes mellitus has been attributed to lower insulin level in the body due to autoimmune destruction of -cells. Alterations in male reproductive system have been widely reported in diabetic human and also in model animals with diabetes.This book focuses on the alloxan induced diabetes on male reproductive hormones and testicular histology in male rabbits. This book demonstrates the effects of diabetes on animal reproductive system and will add new research and knowledge to the hazardous effects of diabetes that it contributes to the male rabbits. ····· 1036198715
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray With the enormous volume of research that finds its place in literature every year, it becomes very difficult to select the meaningful and to present it in a comprehensive manner which required constant examination of the data. In the present manual all the experiments have been written in the light of recent knowledge. Much emphasis has been given on the the drawings pertaining to their clarity. All the specimens and slides have been kept together and related experiments has also been grouped together. This self contained text offers indepth discussion on the theoretical and practical aspects of laboratory experimentation. Some of the salient features of this manual are that every efforts has been made to make the description point wise and very minute details of each experiment have been thoroughly explained at proper places. Authors are thankful to the teacher fellows and students for sending their opinions, suggestions and criticism. We sincerely hope that the present manual will be more helpful for the students in their practical classes. Students comments for further improvement of the manual are always welcome. ····· 1036199196
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The flour beetle T.castaneum is an important worldwide pest of stored products (Mabbet, 1993) that feeding upon a wide range of commodities, especially wheat flour. Nutrition involves the nutrient materials, which are available in foodstuff and the physiological, and biochemical processes by which these nutrient materials are transformed into body tissues and energy for all the activities as life demands.Variation in the quantity and quality of an acceptable diet can have profound effect on insect development. The quantities of protein and amino acids ingested are important for optimal growth and development. The ultimate size of the insects, reflected in the gain in body nitrogen increase as nitrogen intake is increased (Hone and Watanabe, 1983). Commonly as food intake decrease, the duration of development is extended and the insect becomes smaller and lighter in weight. ····· 1036199715
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Biological control of agricultural pests around the world and especially in Egypt may help to reduce the environment pollution by insecticides in addition to save costs for controlling it. The book aims to clear the important role of mites in suppressing number of harmful insects by survey the bio-relationships between mites and economic insects at six Egyptian governorates during three successive years. These relations classified into six categories. Results revealed eighty-two mite species belonging to fifty-five genera associated with forty two insect species belonging to eight insect orders. Also, taxonomical studies for new mite species and finally, biological studies for two common predacious mites in Egypt to throw light on their efficiency in Integrated Pest Management programmes (IPM). ····· 10361100093
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Over the last few years, contamination of water bodies by Cr (VI) has increased around the world. Cr (VI), a highly toxic and strong oxidizing agent produced mainly from the anthropogenic sources such as tanneries, steel, textile, cement and many other industries, whose effluents are frequently released into aquatic bodies. Fish, one of the important aquatic dwellers, are therefore more susceptible to Cr (VI) exposures. Increasingly, human beings are using fish as a protein source, either directly or indirectly as a feedstock for their domestic animals. Adverse effects on their health hence may also have a direct bearing to humans and other animals. Till date reports on toxicological impacts of Cr (VI) on fish health are inadequate. The work presented in this monograph, fill the above gap and reveal acute as well as chronic exposure impact of Cr (VI) on fish endocrine and nonendocrine biomarkers. The doses of Cr (VI) used in present study were comparable or lower than the levels recently reported from contaminated surface and ground water resources. The present study thus provides evidence for the health status of fish and other organisms exposed at these sites. ····· 10361100657
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The environmental light to which most animals are exposed has a major influence in their physiology. Over the decades attempts are being made to understand the physiological mechanism of the processing of environmental light information in the regulation of various body functions in general and reproduction in particular. Light as a source of environmental cue in the use of regulation of reproduction has also been considered for fish, the study on which has gained momentum because of its tremendous economic importance as food. Thus for obvious reasons efforts are continued to develop technologies for increasing fecundity and growth of fish in culture. As a result, photoperiodic manipulation has emerged as an effective tool of reproductive management in culture fisheries, and understanding the physiology of photoperiodic regulation of fish reproduction became the priority topic of research. Precisely, this investigative treatise embodies original findings on the identification of photoreceptor cells, demonstration of the photoreceptor molecules and their diurnal and seasonal profiles in the pineal organ in relation to the reproductive status of the free-living carp. ····· 10361102859
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Public perception towards zoos has changed noticeably around the world in recent decades. Therefore it is essential to understand zoo animal welfare in Southeast Asia. In this monograph, the author, an international scientific expert on zoo animal welfare, examines the underlying causes of animal welfare problems in zoos and recreational parks in several countries in the Southeast Asian region and suggests strategies to improve standards. The author narrates accounts of various common problems zoos and recreational parks often face in terms of ethics and welfare. He also introduces basic welfare problems and the concept of zoo assessments and how they ultimately upgrade welfare standards for many of the captive animals that usually rely on their zoos for survival. Scientific data on zoo animal welfare in Southeast Asia are limited to journal articles, news items and reports by non-profit agencies. Therefore this monograph should serve as an introductory and reference text on zoo animal welfare and ethics related courses in colleges, universities and other institutes of higher learning globally ····· 10361103006
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Amphibians watched the dinosaurs come and go, but today almost half of them are threatened with extinction. Amphibian species diversity is highest in the tropics. Hibernation is usually thought of as a resting condition in which an animal exists in a state of complete or partial torpidity. This is associated with low temperature. During this time animal`s dramatically slowing heart and breathing rates, lowering body temperature, going for long periods without eating. Biochemical and physiological parameters played very crucial role during hibernation. Antioxidant activity, enzyme expression pattern, RT-PCR analysis help to understand the hibernation biology. ····· 10361113221
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present study investigated the prevailing condition of water quality with surface water movement in relation to the existing bridges across the Batticaloa lagoon,Sri Lanka. Kottamunai and Puthupaalam bridges and associated roads not only act as barrier to prevent the mixing of lagoon water but also they change physio chemical parameters by concentrating the pollutants in surface waters. Physio chemical biological parameters of salinity, turbidity, surface water velocity, density, temperature, dissolved oxygen, nitrite, nitrate, pH, phosphate, plankton and fish abundance were measured routinely at approximately a week interval for six months from 2nd July 2008 to 22nd December 2008 over the wet and dry seasons on either sides of Kallady, Kottamunai and Puthupaalam bridges. The existing conditions were found to have strong impact on salinity, temperature, surface velocity, turbidity, dissolved oxygen, nitrite, pH and also on fish migration and plankton assemblages. The trends in these parameters were largely determined by surface water flow and lagoon geomorphology. ····· 10361113649
····· lezzter Preis 53.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In cooperatively breeding species, individuals help to raise young that are not their own. However, the type of help provided and the ways that this affects offspring development and survival are manifold. In this thesis I investigate how non-breeding helpers contribute to rearing offspring in the cooperatively breeding pied babbler, a highly social, gregarious bird from the Kalahari Desert. In this species, reproduction is monopolised by the dominant breeding pair in each group. The remaining subordinate groups members do not breed and, instead, help the dominants to produce young. Subordinates help by feeding young and also by protecting them from predators. There is also evidence that adults teach offspring to associate specific vocalisations with food delivery. Since offspring respond to food calls by approaching adults, adults can use the calls to move offspring around the territory, or away from predators. I also document the conflicts of interest that are rife in systems where reproduction is inequitably shared - and describe how subordinates maximise their chances of attaining the coveted breeding position later in life. ····· 10361114344
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Immunity, a primeval feature of living organisms & is essential for reproduction and to face the challenges originating from seasonal variation and environmental threats as well. Present study reveals that how tropical animals have evolved a mechanism via melatonin to blaster the immune function to counteract seasonally recurrent stressors that may otherwise compromise immune functions. Finding suggests that melatonin is having an adaptive significance in balancing immune status in this rodent. It acts during winter as immuno-stimulator to save the squirrels from the adverse condition (environmental and internal high glucocorticoid level) and free radical load. The effect of melatonin is a direct one, since the receptor for melatonin (Mel 1a) was noted on lymphatic organs. Melatonin may act through/altering the other endocrine glands activity (thyroid/adrenal) in modulating the immune function according to the season. Such interdependency of melatonin-thyroxin and immune function may throw some light to the clinical problems of thyroid dysfunction and immune deficiency. ····· 10361114614
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This study envisages the estimation of floral and faunal wealth of the sacred groves in Kerala and understanding the vegetation from a holistic point of view. Based on the floristic data gathered, the status of rare, endemic, endangered or threatened taxa was ascertained. Sacred groves are small patches of native vegetation traditionally protected and managed by local communities. All sacred groves are islands of greenery in the landscape protecting biodiversity and enhancing the environmental quality and they represents hotspots of biodiversity. Due to changing socio-economic conditions as well as land use systems many sacred groves are now threatened and altered in terms of size, vegetation structure and species composition. For creating a better world we must develop a spirit of reverence and empathy for these Sacred groves.The endemics are represented in over 50 families and 94 genera. Vertebrate fauna in all the sacred groves composed of 5 species of Amphibia, 14 species of Reptiles, 49 species of Aves and 11 species of Mammals. Biological and ecological values of sacred groves were included and recommendations for conserving this miniature forests were also included. ····· 10361114718
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray From the present results and previous studies, itcould be concluded that the neurotoxicity whichcaused by different cement components may be, inpart, due to the elevation in glutamate which lead toincrease the intracellular of calcium concentrationand the inhibition of membrane-bound Na+, K+, Ca2+ATPase activity which lead to cellular alterationsand death. So long term exposure to cement componentsas environmental pollutants may lead toneurodegenerative diseases. ····· 10361114737
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The thesis entiled Studies on monogenoideans of siluriformes of U.P. and Bihar deals with the taxonomical studies of some known and unknown species of freshwater Siluriformes fishes. In all new and known species have been studied. These parasite when present in large amount they can hamper the growth of the fishes and even can produce large amount of martalities of these animals and therefore can produce ill affects on aquaculture. ····· 10361115891
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Los resultados de esta tesis doctoral complementan el conocimiento previo de la bioecología de Streblote panda (Lepidoptera, Lasiocampidae), aportando y comparando datos inéditos, a la vez que confirma algunos ya publicados. Suministra información bioecológica básica que puede resultar importante para el desarrollo y ajuste de planes de manejo integrado, respetuosos con el Medio Ambiente, y concretos para el control de esta especie, que puede presentarse como plaga local, con especial incidencia sobre las plantas jóvenes durante el periodo de implantación y aclimatación de varios cultivos perennes, ornamentales y frutícolas. Se aporta la descripción morfológica de todos sus estadios vitales, así como su caracterización estadística, lo cual permite su adecuada determinación. Se aportan estudios biométricos de la distribución de frecuencias de la anchura de la cápsula cefálica de las orugas para determinar el número de edades y su tamaño así como un modelo de desarrollo basado en la acumulación de días grado. Se analizan las relaciones entre las plantas nutricias y el comportamiento alimenticio del insecto a través de parametros propios de los estudios de ecología nutricional. ····· 10361116321
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray El Paujil de pico azul (Crax alberti) es un ave endémica de Colombia, la cual se encuentra críticamente amenazada de extinción (CR) y se conoce muy poco acerca de su biología y ecología. En el presente trabajo se identificaron aspectos del comportamiento, dieta y el uso del hábitat del Paujil en los bosques tropicales del piedemonte de la serranía de las Quinchas, vertiente occidental de la cordillera oriental, Reserva Natural el Paujil, en los departamentos de Boyacá y Santander, entre Septiembre de 2005 y Mayo de 2006. Esperamos que los resultados expuestos en el presente documento aporten evidencias concretas sobre las relaciones entre la estructura del hábitat y la presencia y abundancia de la especie en la zona, ademas de otros aspectos de su historia natural, que permitan complementar y mejorar los actuales planes de conservación. ····· 10361117046
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This work was undertaken to describe the various features of gut morphology of some mammalian species feeding on different diets. The investigated animals including the long eared hedgehoge, frugivores bat, mice, rabbit and dog. The study was also extended to investigate the gastrointestinal mucosa uses the light, scanning and transmission electron microscopy in an attempt to explain the histological and ultrastructural adaptations responsible for the digestive and absorptive capacities of the intestines of the studied species. ····· 10361119300
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Most of the world adopts the fishing as occupation. Many countries are working to search out the importance for men, such as for its oil, meat, scales. To get perfect nutrition, it is necessary that fishes must be healthy and free from parasitic and other diseases. The parasite infection tends to decrease the growth rate resulting in stunting of fishes. Today most of the researches are directed towards the diagnosis, description, biology, ecology and analysis of the diseases of marine fishes. The motivation for this importance increase on fish disease research is an attempt to avoid economic losses and to disclose the life histories of causative agents which may also interfere with human health. Here two new species of nematodes are described and reported and fish zoonosis is also discussed. This information is useful for students, teachers and researchers interested in the field of parasitology. ····· 10361134145
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The role of androgens in development of male reproductive organs is well documented. The role of estrogens in the development of male reproductive organs remains largely unknown although both estrogen receptors and aromatase enzyme have been identified in the developing penis of a number of species, including humans. Male offspring of women exposed to diethylstilbestrol during pregnancy have higher incidences of epididymal cysts, cryptorchidism, hypospadiasis, and smaller testes. Since female hormones were routinely prescribed to treat threatened pregnancy and considering the potential implications of female hormones during prenatal period on the development of male reproductive system, the present book describes the effect of prenatal exposure to progesterone on adult male reproduction. Significant deterioration in reproduction was observed in mice exposed to progesterone during embryonic development which includes reduction in steroidogenesis and spermatogenesis. Testosterone supplementation during post-natal period partially restored the suppressed reproduction. This book provides valuable information to those working in mammalian reproduction and also to the interested layman. ····· 10361146228
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Red flour beetle is one of the major insect pests of stored grain product in warm and tropical regions of the world. It is the most abundant and injurious pest in flour mills, bulks of grains, oil seeds, stored cereals and warehousing facilities. The life cycle requires 7 to 12 weeks. Bacillus thuringiensis (Bt) is a biological insecticide that makes it useful for pest control. It is naturally occurring bacterium common in soil throughout the world. B. thuringiensis acts by producing proteins (toxic crystal) that react with the cells of the gut lining of susceptible insects. Bacillus thuringiensis affected insects generally die from starvation, as the bacteria enter the insect s blood and reproduce within the insect it is the reaction of the protein crystal that is lethal to the insect. The development of environment friendly insecticides like DDVP+Tetramethrin, having specificity to insects along with low toxicity to vertebrates, has captured worldwide attention of entomologists. Chemical like potassium chloride is very effective in controlling insect pests. Insecticidal plants have replaced them as they are more effective in crop rotation. ····· 10361147082
für 54.00€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Wie wurde und wird das Thema `Tierschutz` in der deutschen Politik diskutiert Der vorliegende Quellenband enthält die Protokolle der im Deutschen Bundestag zur Thematik gehaltenen ungekürzten Reden ab 1998 (14. Legislaturperiode). Diese parteiübergreifende Dokumentation, ermöglicht dem Leser einen direkten Blick auf die parlamentarische Debatte zu das Thema `Tierschutz` und die Diskussionen der Abgeordneten im politischen Tagesgeschäft. ····· 10361134888
····· lezzter Preis 58.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Rudolf Leuckart (1822-98) gilt als Begründer der Parasitologie und ist einer der berühmtesten Zoologen des 19. Jahrhunderts. Bereits während seines Studiums der Medizin und Naturwissenschaften in Göttingen galt Leuckarts Hauptinteresse der Zoologie. Seine Habilitationsschrift, in der er eine neue Systematik der wirbellosen Tiere vorstellte, machte ihn erstmals bekannt. Ab 1850 folgte er einem Ruf an das neu eingerichtete Extraordinariat für Zoologie in Gießen, ab 1869 war er Professor in Leipzig.In seiner Leipziger Zeit beendete Rudolf Leuckart auch die Untersuchungen zur Systematik, Morphologie, Fortpflanzung und Entwicklung der parasitischen Würmer diese umfangreiche Forschungsarbeit festigte seinen Ruf als Vater der modernen Parasitologie. Zwischen 1877 und 1892 entwarf Leuckart insgesamt 113 Lehrtafeln, die weltweit in der universitären Lehre verwendet und als German Wandtafeln bzeichnet wurden. Rudolf Leuckarts Name genoß europaweit hohes Ansehen in der Fachwelt. Die Deutsche Zoologische Gesellschaft ernannte ihn zu ihrem ersten Ehrenmitglied ····· 10361159284
····· lezzter Preis 59.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray It is indeed a great pleasure to take this opportunity to express a deep sense of gratitude to my Research Guide Dr.K.B.Shejule, Dept.of Zoology,Dr.B.A.M.U.Aurangabad.The toxic chemicals are heavily used to increase the crop yield required for feeding the ever increasing the human population.These pesticides through surface runoff reaches to the unrestricted areas like ponds & rivers which alters the physico-chemical properties of water & is toxic to aquatic organism and cause deleterious effect or even death to the aquatic animals. The wide spread use of pesticides not only brought adverse influence on agro - ecosystems but also caused alteration in physiological processes of non-target organisms. This book guides you to for toxicity evaluation of pesticides to fresh water fish.It will help you to study the respiratory physiology,to study histopathological changes in the liver and kidney after exposure to the sublethal concentration of Organophosphate pesticides¿.This book is useful to research students of pesticide toxicology.It is also helpful to environmental biologist. ····· 1036186736
für 59.00€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Mosquitoes are important blood sucking arthropods that transmitting serious diseases. Due to health and environmental problems of synthetic insecticides used in their control, attention has been directed to another more eco-friendly alternatives such as botanical derivatives and biological control agents. This book provides information on success of some alternatives for controlling a couple of important mosquito vectors. The book presents results of susceptibility of Culex annulirostris and Aedes aegypti mosquitoes to 11 plant extracts, fenitrothion and lambda-cyhalothrin insecticides influence of sublethal concentrations of both insecticides and botanicals on the development of these mosquitoes predation capacity of a couple of predaceous insects and factors influencing their capacity and integrating control of both mosquitoes by using of binary mixtures of phytochemicals with or without synthetic insecticides. Results of the present book should help shed some light on these exciting results and should be useful to professionals in mosquito control as well as researchers, postgraduate students or anyone else working in fields of insect control and/or medical entomology. ····· 1036199064
für 59.00€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Wie wurde und wird das Thema `Tierschutz` in der deutschen Politik diskutiert Der vorliegende Quellenband enthält die Protokolle der im Deutschen Bundestag zur Thematik gehaltenen ungekürzten Reden ab 1998 (14. Legislaturperiode). Diese parteiübergreifende Dokumentation, ermöglicht dem Leser einen direkten Blick auf die parlamentarische Debatte zu das Thema `Tierschutz` und die Diskussionen der Abgeordneten im politischen Tagesgeschäft. ····· 10361134890
····· lezzter Preis 59.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Keine andere Riesenschlange wird in einer derartigen Vielfalt an Farben und Zeichnungsmustern gezüchtet wie der Königspython. Seine Robustheit und die leicht zu erfüllenden Ansprüche an die Haltung eignen ihn für solche Zuchtprojekte ebenso wie als `normales` Heimtier.In diesem umfassenden Kompendium geht er nicht nur auf die Voraussetzungen zu Haltung und Vermehrung ein, sondern stellt auch detailliert und mit großem Hintergrundwissen die derzeit erhältlichen Morphen vor. Das umfangreiche, einzigartige Bildmaterial macht dieses Kompendium zu einem Fest für die Augen! ····· 10361165957
····· lezzter Preis 59.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Zoologe und Anatom Carl Gegenbaur (1826-1903) war ein äußerst bedeutender deutscher Wirbeltiermorphologe, der sich sein ganzes Leben lang mit der Frage nach dem Ursprung des Menschen beschäftigte und zu diesem Zweck Lebewesen miteinander verglichen hat. Diese von ihm initiierte Wissenschaft ist die Vergleichende Anatomie. Gegenbaur studierte ab 1845 u.a. bei Virchow in Heidelberg Medizin und habilitierte sich 1854 in Würzburg. Zu dieser Zeit hatte er sehr viel Kontakt mit anderen einflussreichen Biologen, darunter Ernst Haeckel und Matthias Jacob Schleiden. Im Jahre 1855 wurde Gegenbaur zum außerordentlichen Professor der Zoologie und vergleichenden Anatomie in Jena berufen. 1873 übernahm er die Leitung des anatomischen Instituts in Heidelberg. ····· 10361188888
····· lezzter Preis 59.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Fast 100 Jahre mussten nach seiner wissenschaftlichen Beschreibung im Jahre 1839 vergehen, bevor der Goldhamster 1930 in der Steppe Nordsyriens wiederentdeckt wurde. Nachdem es gelang, ausgehend von drei Männchen und einem Weibchen des ausgegrabenen Wurfes, eine Zuchtpopulation aufzubauen, stand dem weltweiten Siegeszug des kleinen Nagers mit den Knopfaugen nichts mehr im Wege. Schon bald eroberte er die Kinderzimmer in den USA und Europa. Auch als erfolgreiches Labortier für die Wissenschaft etablierte sich der Goldhamster nicht zuletzt aufgrund seiner kurzen Tragzeit von nur 16 Tagen.Das vorliegende Buch liefert neben interessanten Details zur Entdeckungsgeschichte ausführliche Informationen zur Morphologie, Verbreitung, Domestikation und dem Verhalten des Tieres. Darüber hinaus wird erstmalig auf neue Erkenntnisse zur Freilandbiologie des Goldhamsters eingegangen. Eine umfangreiche Darstellung der Rolle des Goldhamsters als Labortier sowie die Beschreibung existierender Zuchtformen runden den Band ab. Die Autoren können dabei auf mehr als 30 Jahre Goldhamsterforschung im Labor und im natürlichen Verbreitungsgebiet zurück blicken. Eigene wissenschaftliche Erkenntnisse werden mit aktueller internationaler Literatur verknüpft. Zahlreiche Illustrationen und Tabellen helfen beim Verständnis. Ein Buch, das sowohl den engagierten Heimtierhalter als auch den Tierarzt oder Wissenschaftler anspricht. ····· 10361209814
····· lezzter Preis 59.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Eine umfassende und topaktuelle Monografie über die vielleicht populärste Vogelart überhaupt - herausgegeben und verfasst von führenden Weißstorch-Fachleuten. Inhalt: - Systematik, Stammesgeschichte, Morphologie und Physiologie - Verhalten, Fortpflanzung, Zug und Überwinterung - Verbreitung, Lebensraum, Bestandsentwicklung und Ökologie - Gefährdung und Schutz ····· 10361209849
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Both molecular and morphological analysis showed no congruency when the genetic analysis were not able to separate the specimens accordingly to their geographical population. However, it was efficiently distinguished and observable from the canonical variate scatter plot that each individual were grouped accordingly to their population. It was suggested that the incongruence could have been resulted from the different forces affecting the parameters used in current study. Morphological characters are known to be more sensitive towards its environment compared to their genetic properties. Different evolutionary path and evolutionary clock calibration could also be the standing factor in explaining the conflicting results of both approaches. Additional of samples towards the north of Peninsular Malaysia and downward to the southern of Borneo could provide a better insight on such phenomenon observed from current population study of P. lucasi. Availability of specimens from each point connecting the possible gene flow bridge between locations around Borneo could be the answer to the current state of knowledge of P. lucasi. ····· 10361155
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Toxocariasis is a public health problem. Man acts as an unnatural host in which Toxocara larvae does not develop but migrate and survive for a long time. The mode of transmission to humans is by oral ingestion of infective Toxocara eggs from contaminated soil (sapro-zoonoses), unwashed hands or consumption of raw vegetables. Some infections may occur from ingestion of larvae in undercooked organs and muscle tissues of infected paratenic hosts such as chickens, cattle and sheep. Transmission to the second generation is theoretically possible by infective larvae of canine ascarid nematode Toxocara canis, a ubiquitous parasite of dogs in temperate and warm climates. This book give a brief overview of Toxocariasis and presents a detailed study of the zoonotic disease in human populations of the valley of Kashmir. ····· 10361451
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Trematodes of frog (Rana tigrina) are described here. Seven species belonging to genera Ganeo Klein, 1905 Loxogene Stafford, 1905 Pleurogenoides Travassos, 1921 and Mehraorchis Srivatava, 1934 were identified. The species identified are Ganeo karachiensis Khatoon et al., 2011 G. bicaudatum Khatoon et al., 2012 G. elongatum Khatoon et al., 2012 Loxogene magnapharynx Khatoon et al., 2012 Pleurogenoides biseminalis Khatoon et al., 2012 P. gastroporus (Lühe, 1901) and Mehraorchis mujibi Khatoon et al., 2012. Frogs are of economic value and exported to various countries where these are consumed as delicacy. Frogs are common throughout Pakistan and several other countries. The present information is useful for students, teachers and researchers interested in parasites of amphibians. ····· 103611065
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Tannery effluent is among one of the hazardous pollutants of industry. Major problems are due to wastewater containing heavy metals, toxic chemicals, chloride, lime with high dissolved and suspended salts and other pollutants. Tanneries generate wastewater in the range of 30 - 35 L/kg skin / hide processed with variable pH and high concentrations of suspended solids, BOD, COD, tannins including chromium. Chromium is the major constituent of tannery effluent, which is the heavy metal and highly toxic to aquatic fauna. Chromium is not known to accumulate in the bodies of fish, but high concentrations of chromium, due to the disposal of metal products in surface waters, can damage the gills of fish that swim near the point of disposal. This book experimentally explains the Chromium toxicity on fresh water edible fish, Cyprinus carpio and explains the impact of tannery effluents. ····· 1036118271
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present work has been suggested to the rarity of taxonomic and biological information with respect to the commercially important Serranid fishes from the Red Sea at Hurghada, Egypt. In this work more advanced techniques and statistical methods were considered to answer a lot of important questions. The inter-specific variations between the selected Serranid species were evaluated in term of morphometric and meristic analysis, electrophoretic proteins patterns, number of isoenzymes, gene frequencies, genetic identity, genetic distance, heterozygozity and genotypes. ····· 1036118506
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Bacteria, fungi and protozoa often benefit insects in some manner. A microorganism may live passively within the external environment, yet share a close and apparently mutualistic association with an insect. Alternatively, the relationship may be so mutualistic that a microorganism is obligately restricted to living within specialized insect tissues. Microorganisms are known affect almost every aspect of insect physiology and are a necessary component underlying many insect behaviours. Over the last 100 years, the number of known, beneficial microorganisms has grown steadily. This guide compiles those known examples, describes the method in which each microorganism is transmitted among insects, and indicates how the microorganisms are experimentally manipulated to ascertain their beneficial function. ····· 1036119587
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book titled `Neurotoxicology` elaborately deals with the toxic effects of pesticides and insecticides used on the plants by farmers in massive quantities to be absorbed by the plants, and the minute quantities left unabsorbed by the plants prove harmful to animal, bird as well as human life. To counter the harmful effects of accumulated toxic substance left over`s on of the insecticides and pesticides a new chemical substance named `Neonicotinoid` came to the fore. The new chemical substance is administered to the rats orally to studied the effect on the brain, LD50, behavioral tolerance, cholinergic aspects, non-cholinergic aspects and histopathology. The salient features of the book `Neurotoxicology` include, simple and comprehensive approach abounding with illustrations, tables and case studies chiefly in the Indian context. ····· 1036119979
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This monograph is the first detailed description of the various tradigrade species (water bears) on the island of Newfoundland, Canada. It contains information on some twenty six named species of tardihgrades in terrestrial lichens and mosses on the island, in addition to two presently unidentified species. The twenty six named species include three species of heterotardigrades and twenty three species of eutardigrades. This account contains detailed information on each species, together with maps showing their distribution across the island. Comments are included on the similarities/differences in descriptions by other authors. A dichotomous key to all twenty eight species is included. A table listing all the currently known species for each province and territory of Canada is also included, as is a comprehensive list of references for each species found in Newfoundland. This book should be of interest to researchers interested in the biology, ecology, and taxonomy of this interesting group, as well as those generally interested in the meiofauna of lichens and mosses. ····· 1036120390
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Fungi are responsible for producing number of diseases, including some devastating epizootics in fishes, which inflict heavy losses to fish industry. This book provides support in gaining the knowledge in this field. It will be helpful in finding out the relation of various water parameters with the growth of aquatic fungi and also helpful in controlling the incidences of mycotic diseases and thus will save the fisheries industry from economic losses. ····· 1036121403
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book has profound knowledge of different aspects of biology and management of both the hive species of genus Apis and especially in the field of beekeeping. So their inputs are valuable as to the potential for the development of apiculture in India. Importance has been given to both Apis cerana and A. mellifera while planning the chapters since it is accepted fact that our apiculture has to flourish with the two hive species and any one of them cannot be ignored. The book is principally aimed at the practicality of bee biology and beekeeping with the two hive species. ····· 1036121533
····· lezzter Preis 61.20€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A detailed study on developmental pathways, feeding preferences, responses to insecticides and swarming behaviour of Microcerotermes championi (Snyder) is documented.As the soldier caste in the nest population is very poorly represented, it was almost a quagmire to find out the larval stage from which the soldier caste develops. Detailed studies on caste differentiation of the field colony of M. championi revealed that soldiers develop from first instar large worker, which after two moults changes into the soldier.Sexual dimorphism is present in workers. Females are larger than males. Large worker is preceded by two larval instars (first instar larva and second instar large larva) followed by four successive moults, to become a large mature worker. On the other hand, small worker is also preceded by two larval stages (first instar larva and second instar small larva) followed by three successive moults to transform into a mature small worker. The alate originates from first instar larva and passes through five nymphal instars (defined as such by the presence of wing buds) to become an alate.Based on the feeding propensity, the woods are arranged in descending order of preference. ····· 1036125951
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Pakistan has 236 protected areas including 23 national parks. The Hazarganji Chiltan National Park was established for the protection and conservation of Chiltan Markhor. The present study was undertaken during 2006-2009 on bioecology and fauna of Hazarganji Chiltan National Park and development of ecotourism in protected areas. During the study 30 species of mammals, 120 species of avifauna, 25 species of reptiles and 4 species of amphibians have been recorded. Several other protected areas of Pakistan were also studied for the development and promotion of ecotourism, such as Khunjerab National Park, Ghamot National Park, Deva Vatala National Park, Haleji Lake, Keenjhar Lake and Hub Dam with proposed activities like Wildlife Safari, Bird Safari, Nature Safari, Nature Trails and Tracks, Sightseeing, Hiking, Rock Climbing, Para Gliding, Mountaineering, Snow Leopard Safari, Boating, Fishing etc. The park is an important last remaining refuge of the Chiltan Markhor (Capra falconeri chialtanensis). ····· 1036188307
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Adverse trends in reproductive health of wildlife and humans are significantly increased during the last few years. It is widely acknowledged that one of the possible reasons for the deteriorated reproductive health is exposure to a range of occupational and/or environmental contaminants. Among the contaminants, lead (Pb) is one of the non-essential metal toxicants and is mainly used in the manufacture of lead-based storage batteries, painting pigments, solder, automobiles, radio-activity shields. It is believed that Pb is non-biodegradable, immutable and bio-accumulative in nature and thus its release into the environment tends to persist inadequately and accumulate in the living organisms throughout food chain. Thus, it seems apparent that exposure to lead is implicated in serious health hazards in animals and humans. There is a lack of literature data related to the effect of Pb on male reproduction, particularly at the dose levels occurring in drinking water in wide areas of India and in other countries. The present book focuses on reproductive toxicity in rats exposed to Pb during perinatal/adult period. ····· 1036188432
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In the present study, population status, distribution and environmental impacts on reptiles in the coastal areas of Karachi has been determined. Total twenty seven reptilian species including Green Turtle, Olive Ridley, and Hawksbill Turtle, nine lizard species such as Common Tree Lizard, Spotted Barn Gecko, Yellow Bellied Common House Gecko, Persian House Gecko, Blotched House Gecko, Mediterranean House Gecko, Blue Tail Sand Lizard, Spotted Lacerta, and Bengal Monitor were recorded from Manora, Sandspit, Hawksbay and Cape Monze areas. Fifteen snakes species viz Beaked Sea Snake, Blue Green Sea Snake, Annulated Sea Snake, Persian Sea Snake, Broad Band Sea Snake, Reef Sea Snake, Yellow Sea Snake, Pygmy Sea Snake, Spotted Small Headed Sea Snake, Pelagic Sea Snake, Spotted Viperine Sea Snake, and Blotched Diadem Snake were recorded, while three species Cliff Racer, Saw-scaled Viper and Black Cobra were recorded from Manora, Hawkesbay and Cape Monze area only. The research techniques and information are helpful for graduate and research students of wildlife, Herpetologists, National Parks managers, wildlife biologists, wildlife conservation organizations etc. ····· 1036192097
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Myotis bechsteinii is a European forest bat species. It s considered rare and only locally abundant over its wide distribution range. Current rareness- in strong contrast to the abundance in the fossil register- and its distribution restricted to large masses of well preserved deciduous forest, suggest that Myotis bechsteinii is retreating, as a consequence of climatic factors, deforestation or both. The comparative study we conducted does not support the vision of the Mediterranean area as suboptimal for the species, but rather the opposite. Thus, the reported scarcity of this bat in the area seems to be more related to degradation and rarefaction of preferred habitats- deciduous forests- than to bioclimatic conditionings. Genetic structure also reflects the prolonged isolation of populations, related to deforestation and to low altitude mountains acting as corridors promoting connectivity. Given the slow and limited responsiveness of Myotis bechsteinii to perturbations to their habitat or populations, the present distribution- smaller than the potential habitat- may reflect the history of fragmentation and degradation of forests, even at finer spatial scales. ····· 1036199386
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Importance of the Research Work Study of species composition of sandflies and their seasonal variation may provide the correct time for vector control. Through the research work, it has been found that Natural Selection has kept the population of P.papatasi higher in comparison to P.argentipes. Its importance lies in the fact that P.papatasi is more anthropophillous than P.argentipes, but under certain circumstances (eg. During epidemic) P.argentipes also becomes anthropophilic and then both compete for the same resource. P.papatasi being more dominant controls the population of P.argentipes. Otherwise kala-azar would have been a daily phenomenon. The molecular immunological tools used today are quick, sensitive and specific to detect the Vectorial capabilities of different vectors These tools may provide the data of endemicity of any disease including Kala-azar in a short period of time. Future of vector control lies in the use of molecular tools ····· 10361100282
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In the world of environment health and medicine, lead exposure remains one of the most important problems. Despite decades of intensive research, lead toxicity remains one of the most studied subjects of all within the field of environmental health and medicine. This reflects the large gaps that continue to exist in our understanding of the full implications of lead exposure on health. During the 20th century there was an increased risk from environmental byproducts, lead being one of them that may be harmful to reproductive functions in human beings and animals. Therefore as the 21st century has commenced it is appropriate to evaluate directions for future in the field of reproductive toxicity. This experimental interpretation identifies several approaches and suggestions that would help research to continue in meaningful direction. Lead compounds are known to induce toxicity in mammalian systems. However female reproductive toxicity is comparatively less expedited. In the present work, toxic effects of lead were observed on fertility of swiss mice. Along with this, the therapeutic effects of Vitamin C, E and their combination on lead induced toxicity has also investigated. ····· 10361101743
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Each year about 13 million hectares of forests around the world are lost due to deforestation. Over a third of the world`s non-human primates are critically endangered due to deforestation, logging, hunting, agriculture and other development activities. Asia is by far the most populous region on our planet and its tropical rainforests have suffered enormously due to human impact. Scientists have recently warned that man`s closest living relatives- the world`s apes and monkeys are increasingly facing threats from humanity. According to statistics, 25% of the total 625 primate species and subspecies known to science today could soon become extinct if urgent conservation measures are not taken. Among the 22 extant species in the genus Macaca that are found in Asia and Northwestern Africa, the Formosan macaque is the least known. In this monograph, the authors based on their two decades of field research on the Formosan macaques of Mt. Longevity presents new data on ecology, social behavior, demography and conservation. The authors also highlight the urgent need to protect Taiwan`s only non-human primate species for future generations. ····· 10361102862
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray One of the fundamental goals of behavioural ecology is to understand the evolution of animal societies how they are formed, structured and stabilized. A generalised understanding of the functioning of animal societies has clear, far-reaching consequences for our understanding of the evolutionary origins of our own societies. In order to shed light on our own behavioural characteristics, we much first conduct detailed investigations into the structure, functioning and stability of model animal systems that can be experimentally manipulated to test key theories in social behavioural evolution. This work represents a quantitative, experimental investigation into the mechanisms responsible for the evolution and maintenance of monogamy, group-living, conflict resolution and cooperation, using a social coral-reef fish as a model species. In so doing, it provides a comprehensive picture of social and reproductive behaviour of this species, and contributes to a greater understanding of the processes governing the evolution and maintenance of societies in general. ····· 10361114294
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The achievement of this monograph would not have been possible without expertise of Departments of Zoology and Chemistry,JKUAT and BCED at icipe-African Insect Science for Food and Health, respectively. The Management at ICIPE enabled the study. Special gratitude to Dr. A. Hassanali (Emeritus Scientist-ICIPE),Professor of Chemistry,Kenyatta University, for his immense contribution and input to this work from the time of conceptualizing the project,constructive advice during the actual bench-work and positive critiques of this write-up. Heart-felt gratitude for allowing me sit beside him at his computer`s desk in his office on countless occasions, where he guided me on how to write and communicate science. I wish to thank Dr. B. Torto for managerial role at BCED, which facilitated the research work. My gratitude is also due to the members of staff of the BCED for the interest and support in the work. The Netherlands-SII through ARPPIS, at ICIPE for the offer of the scholarship for the PhD opportunity is greatly appreciated.Yet importantly,glory and honour to the Almighty God for this excellent opportunity.His grace and love are sufficient and endures forever for believers. ····· 10361114331
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book examined the performance of uniform wildlife laws in four selected National Parks in Nigeria between 1991 and 2004. The study became necessary because some authors have argued that the rapid loss of wildlife species in protected areas are largely attributable to the gross deficiencies inherent in the wildlife laws applied without considerations of the peculiar characteristics of the host communities and ecological differences in the respective protected areas. The study, therefore, appraised the occurrence of various wildlife offences in relation to convict sentences applicable to wildlife offenders. Wildlife legislation clauses which were detrimental to wildlife conservation in the national parks were identified and discussed. The study determined if equal application of wildlife laws in the national parks have similar and effective influence irrespective of the differences in geographical locations of the parks, ecological and socio- cultural characteristics of the host communities. Factors affecting the performance of uniform wildlife laws in the national parks were identified and discussed exhaustively. ····· 10361114387
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book deals with the study on the effect of isobaric hypoxic hypoxia (10%) on rat brain. Since literatures support generation of free radicals during post ischemic/hypoxic period, here hypoxia followed by reoxygenation is dealt with as the single problem. Subsequently, as brain shows regional variations in its function and metabolic activities an attempt was made to study effect of hypoxia- reoxygenation in five brain regions ie cerebrum, cerebellum, medulla, hippocampus and hypothalamus. The changes in the activities of antioxidant defense enzymes (superoxide dismutase, catalase and glutathione peroxidase), antioxidant GSH amount and lipid peroxidation levels in brain was analyzed biochemically accompanied by histochemical analysis of brain sections to detect ultrastructural changes in brain associated with hypoxia-reoxygenation. This book also deals with the use of liposomes entrapped with superoxide dismutase to circumvent this hypoxia associated pathological changes in brain. Due to the inability of the free enzyme to cross the blood brain barrier, the liposomes were used as a carrier to smuggle past the blood brain barrier to reach the deeper brain regions. ····· 10361132831
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Over the past three decades, Pakistan s Protected Areas system has expended to include 221 sites that are listed as protected areas on the national register. There are now 22 National Parks, 96 Wildlife Sanctuaries, 3 Wildlife Parks, 2 Nature Parks, 1 Wildlife Refuge, 1 Crane Refuge and 96 Game Reserves. The studies were undertaken during the period 2006 to 2009 to record the distribution and status of the birds of Hingol National Park (HNP), to identify the threats and to make recommendations for their conservation. A total of 158 species of birds were recorded. The bird fauna comprised of waterbirds, birds of prey, game birds, passerines and other birds (Parakeet, Nightjar, Swifts, Kingfishers, Bee Eaters, Roller, Hoopoe and Woodpecker). The threatened species of birds recorded in the HNP include Laggar Falcon, Pallas s Fishing Eagle, Imperial Eagle, Lesser Kestrel, Egyptian Vulture, Indian White backed Vulture, Painted Stork and Sociable Lapwing. The research techniques and information are helpful for graduate and research students of wildlife, National Parks managers, wildlife biologists, wildlife conservation organizations etc. ····· 10361135730
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The study was planed to determine the effects of different doses of hormone 17 -methyltestosterone (MT) and different protein level of feeding on masculinization, growth performance and meat quality in Nile tilapia (Oreochromis niloticus). The experiment was conducted in two phase. In phase-I, two experiments were performed in six aquaria (50fry/aqurium) with two replicates. In experiment A, aquarium -1 was used as control in which no hormone was given while in aquaria 2 and 3, the MT were given@ 60 and 70 mg MT/ Kg of feed containing 30 % crude protein. In experiment B, aquarium - 4 was used as control in which no hormone was given while in aquaria 5 and 6, the MT were given@ 60 and 70 mg MT/ Kg of feed containing 40 % crude protein. Both the experiments were run parallel in six aquaria for 30 days. After that, the fry were shifted to 6 earthen ponds (phase-II) in which feed was given without hormones on the same protein level as in phase-1, to monitor their growth performance for 183 days. At the final harvest frequency of males and females was determined by morphomatric characteristics and examination of gonads. ····· 10361146858
····· lezzter Preis 68.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Im Jahre 1761 veröffentlichte Carl von Linné erstmals eine Enzyklopädie der Insekten, die an Präzision und Detailreichtum auch heute kaum zu überbieten ist. ····· ····· ····· ····· 1036159602
für 68.00€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The author studied the ecology and breeding behaviour of Indian Grey Hornbill Ocyceros birostris for two years in Nagpur city in Central India. The hornbills have a hornlike protrusion or casque over their bills. The hornbills have an interesting breeding behaviour. The female seals herself in a living tree cavity till the nestlings are grown enough to accept the food through a small cavity slit. She fledges and the cavity is resealed by the nestlings. They break it when they are ready to fly. This is the only hornbill species in India which breeds in well wooded metropolitan cities. The keystone species in the diet of hornbills were figs of Ficus religiosa and F. benghalensis making up nearly three fourth of its diet during breeding season. The hornbills indulge in various social interactions like bill grappling, aerial jousting and erratic chases in the canopy. The role of bark pieces supplied to nest inmates in nest sanitation was established by the author. ····· 10361132694
····· lezzter Preis 69.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieser Tafelband aus dem frühen 18. Jahrhundert zeigt in prachtvoll colorierten Zeichnungen Bilder von Tieren, die nicht nur damals voller Exotik waren und deren liebevolle Zeichnung jedes profane Foto übersteigt. Für Liebhaber alter Zeichenkunst ebenso zu empfehlen wie für Tierfreunde. ····· 10361172793
····· lezzter Preis 69.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Johann Herbst, ein Zoologe, war im Jahre 1790 einer der ersten, der versuchte, Krabben und Krebse in ein Ordnungssystem zu gliedern und detailgetreu darzustellen. Oftmals sind seine Abbildungen die ersten überhaupt. ····· 10361172518
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In the present study, the effects of environmental pollution on aquatic vertebrates of two Ramsar Sites viz. Haleji and Keenjhar Lakes were noted and inventories of the vertebrate fauna were prepared. In the water samples taken from Haleji Lake, the pesticides of organophosphate (OP) and organochlorine (OC) groups were estimated above the Maximum Acceptable Concentrations (MAC). These concentrations were much higher in muscles and fat contents than other tissues of birds. All water samples from Keenjhar Lake contained pesticides below the MAC level. A total of 22 species of mammals, 228 species of birds, 32 species of reptiles, 2 species of amphibia, 37 species of fishes and 33 species of plants were recorded from Haleji Lake, while, 25 species of mammals, 121 species of birds, 29 species of reptiles, 2 species of amphibia, 54 species of fishes and 258 floral species were recorded from the Keenjhar Lake. The research techniques and information are helpful for graduate and research students of Biological Sciences, Environment Science and wetlands managers. ····· 1036124
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book pertain to melissopalynology of honey samples collected from different blocks of district Chamba with varied Climatic conditions Altitudes and Latitudes. Melissopalynological studies of thirty five honey samples from seven blocks of the Chamba area of Himachal Himalaya.The present investigations were also undertaken on the diversity of the bee-flora in district Chamba and find out its relative utility by the honey bees (Apis cerana Fab. and Apis mellifera Linn.). About 153 species were recorded suitable for bee pasturage in the district Chamba. The studies were also made in order to know the current status of several Traditional beekeeping technologies in district Chamba. The Physico-chemical analysis for present investigation of honey were determined by collecting samples from different traditional hives viz. wall hives, log hives, miscellaneous hives and apiaries located in district Chamba. This book will be definitely help to researcher, scientists, farmers and policy maker who are involved in this field of research. ····· 103613208
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In course of evolutionary time, the introduction of lead into man`s environment has been of a very short and recent period. The amount of lead in human environment has increased considerably during the last century. Thus, lead is in air, water, food, rivers, lakes, oceans, dust and soil. Therefore, all individuals have a body burden of lead, whether they are exposed in urban, rural or occupational environment. The chronic toxicological effects of lead may cause kidney, liver, haematological, neurological and cognitive impairments. The treatment of lead poisoning especially at sub-clinical level is equally important. Use of chelating agents has been successful for short term of high exposure to lead. Besides, these agents can remove essential elements, resulting in kidney damage. Recently, the role of vitamins in preventing lead toxicity in animals is gaining wide attention. The body contains an elaborate antioxidant defense system that depends on dietary intake of antioxidants, vitamins and minerals. The novel role of antioxidants has opened new areas of research in several disease status and their therapeutic strategies. ····· 103613766
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Proteins have excellent potential as antioxidant additives in foods because they can inhibit lipid peroxidation through multiple pathways including inactivation of reactive oxygen species, scavenging free radicals, chelation of pro-oxidative transition metals, reduction of hydroperoxides, and alteration of the physical properties of food systems. Numbers of herbs are traditionally used in different countries during drug of toxin induced hepatic and renal disorders, such as 43kDa protein molecule isolated from leaves of Cajanus indicus L., which provide maximum protection for liver, kidney and other organs in vivo against different toxins. ····· 1036118419
····· lezzter Preis 71.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ayubia National Park, Khyber Pukhtoonkhwa Province, Pakistan is one of the 14 national parks in Pakistan. It is internationally known as a hot spot in the moist temperate west-Himalayan mountainous range. Many endangered (threatened) species are inhabited in the Park. The park is enriched with coniferous forests mixed with broad-leaved evergreen and deciduous trees. A total of 420 species of plants (9 species of fungi, 5 of lichens, 5 of gymnosperms, 65 of monocotyledons and 309 of dicotyledons were recorded. A total of 22 species of mammals(10 families),154 species of birds(42 families) and 8 species of Herps (Reptiles and Amphibians 5 families) were recorded. ANP has now become a permanent breeding territory of leopard. Of the bird species 12.9% were permanent resident, 12.3% were resident altitudinal migrant, 18.9% were passage migrant, 29.2% were summer migrant, 4.5% were winter migrant, 10.4% were occasional, 10.4% were vagrant and 2.6% just take the aerial route. Complete description along with current status, feeding habits, limiting factors, calling, nesting, gliding, breeding etc of two flying squirrels (Petaurista albiventer and Hylopetes fimbriatus) were also included. ····· 1036118800
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Thirty genera under 14 subfamilies of parasitic braconid wasps wereidentified. Among them 15 genera and 3 subfamilies are the new records from Bangladesh. A Among them, 15 genera, viz., Phaenocarpa Foerster, Aphidius Nees, Ephedrus Haliday, Lysiphleblus Förster, Praon Haliday, Agathis Latreille, Bassus Fabricius, Earinus Wesmael, Blacus Nees, Glyptomorpha Holmgren, Dinocampus Forster, Helcon Nees, Eubazus Nees, Protomicroplitis Ashmead, Rogas Nees. A brief descriptions of 14 Bangladeshi subfamilies and 33 genera are given. An illustrated key to the subfamilies and genera are also presented here for the first time in Bangladesh. A critical discussion on the systematics and phylogenetic aspects ofv the parasitic braconid wasps has also been provided here. ····· 1036118905
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present work includes a comprehensive study on soil & plant parasitic nematodes belonging to the orders Dorylaimida & Tylenchida associated with guava & Litchi plantations in India. Nematodes are considered as one of the major constraints in agriculture & horticulture allover the world & are responsible for yield losses of guava & litchi. The taxonomic part comprises of identification of the available specimens up to species level. It provides information on nematode association of these cash crops which is important globally. The ecological part includes the monthly population fluctuation. As the different edaphic factors, like soil moisture, temperature, pH, nitrogen, phosphorus, potassium, organic carbon & soil electrical conductivity are the determining factors for the shape and quality of the nematode population in soil micro-environment, the effects of these soil factors on nematode population have been investigated. The effectiveness of predatory and omnivorous nematodes as a bio-controlling agent to reduce the population of tylenchids was tested statistically. The present effort may contribute some additional and valuable information on this relatively unattended field. ····· 1036119201
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A total of seven hundred and thirty six Columbids from Zaria and its environs were examined for ectoparasites and helminths. The Columbids examined were Columba livia domestica (240), Streptopelia senegalensis (382), Streptopelia decipiens (48), Columba guinea (28), Turtur abyssinicus (32) and Streptopelia vinacea (6). The ectoparasites recovered comprised of lice: Columbicola columbae 229 (31.1%), Menopon gallinae 87 (11.8%), Goniodes sp. 44 (6.0%) fly: Pseudolynchia canariensis 127 (17.5%) mite: Dermanyssus gallinae 7 (1.0%) and tick: Argas persicus 14 (1.9%). The helminths identified, included cestodes: Raillietina tetragona 154 (20.9%), Raillietina echinobothrida 100 (13.6%), Raillietina magninumida 15 (2.0%), Raillietina cesticillus 37 (5.0%), Amoebotaenia cuneata 25 (3.4%), Hymenolepis carioca 39 (5.3%) and Hymenolepis cantaniana 46 (6.3%) and the nematodes: Heterakis gallinarum 11 (1.5%), Ascaridia galli 10 (1.4%) and A. columbae 27 (3.7%). The effect of A. galli infection, on body weight, PCV, Hb level, total plasma protein, liver, lungs, heart, kidneys and intestine, in experimentally infected C. l. domestica was studied. ····· 1036119582
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A total of 322 species of birds belonging to 190 genera, spread over 60 families and 17 orders were recorded in Himachal Pradesh. Intensive studies on residential status revealed that of a total of 322 species explored, 289 species showed short or long-range migrations and rest 33 were residents. Of 289 migrant species, 123 were altitudinal migrants, 72 were seasonal-local migrants, 61 were winter visitors, 28 were summer visitors, 4 species showed winter and 1 showed summer influx. Analyses of data on relative abundance showed that Himachal Pradesh is very rich in avifauna and acts as a home to 143 very common, 109 common, 47 uncommon and 23 rare species. Studies on avian diversity along the altitudinal gradient showed that there was a decrease in bird diversity with an increase in elevation. An insight into the bird diversity of the localities separated by altitudinal gradient revealed that the bird species present in one locality were replaced by another species in other localities. Based upon present studies it has been found that there are 11 globally threatened species of birds in Himachal Pradesh. ····· 1036120752
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray La evaluación del estado de los recursos marinos, sobreexplotados en buena parte, es fundamental para la gestión adecuada de los mismos y, por consiguiente, para su explotación sostenible. Para ello, determinar la edad y el crecimiento de las especies de interés comercial es básico, pues permite conocer mejor su ciclo vital y determinar la estructura demográfica de las capturas, que es utilizada para evaluar el tamaño y estado de explotación de sus poblaciones mediante el uso de modelos estructurados por edad. Este trabajo describe el crecimiento de cuatro especies de elevado interés pesquero en el Atlántico europeo: gallos (Lepidorhombus boscii y L. whiffiagonis) y rapes (Lophius piscatorius y L. budegassa). La edad en estas especies se estima mediante la interpretación de los anillos anuales en sus piezas esqueléticas. La tasa de crecimiento del rape blanco también se estima mediante el marcado-recaptura de individuos. El seguimiento de cohortes contribuye a validar la fiabilidad de los criterios de interpretación de la edad. También se analizan las variaciones sexuales, geográficas y batimétricas del crecimiento de los gallos. ····· 1036121976
····· lezzter Preis 71.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book include a brief data on scale insects families and a main data, which reviews the major taxonomic characters and character-states used to diagnose species of hypogaeic margarodids in the 30 Porphyrophora species and 10 related taxa and discuss their phylogenic relationships. The book is arranged in 10 chapters and 6 appendices all including 8 tables and 52 original figurs which as excellent line-drawn illustrations clarify the content of this book for the reader two keys to the adult females of 9 genera and 30 species. Phylogenetic analyses including 2 cladogram. Geographic distribution and host plants associated with each species of Porphyrophora and other hypogaeic margarodids arranded in two tables. Two or four illustrations for four of the species to depict the morphological variations that may be present in each. This book will be a good reference source for those who wish to study scale insects margarodides fauna, phylogeny, crimson dye and protecting caltivated host plant from damage by harmful margarodides. ····· 1036124704
····· lezzter Preis 71.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray I obtained my master degree of Science in Zoology with general specialisation in Cell Biology and Histology and particularly in developmental-biology and -physiology field in 2005. I mainly worked on developing rat brain and spinal cord during pre- and post-natal periods. I subsequently obtained my PhD degree in zoology with general specialisation in Embryology and Comparative Anatomy and particularly in developmental-neuroendocrinology and -physiology field in 2009. I studied the interactions between the different states of thyroid hormones and rat brain development during the perinatal period. I gained a remarkable experience in different biochemical and histological techniques and especially in the analysis of vertebrate brain morphology. During both degrees and a short postdoctoral period, I published generally seventeen papers in different international journals and chapters. Therefore now I also have a strong background in endocrinology. However, my experimental work will not improve accordingly due to the lack of grants to reach the highest objectives. Thus, I am searching for a postdoctoral place to develop my individual skills and enhance my career prospects. ····· 1036124968
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present study shows for the first time that the leaf extract of Cissampelos pareira (CLE) has potential anti-hyperglyaemic activity in fructose-induced and fructose-aloxan-induced diabetic rats as judged from the significant reduction in serum glucose and percent glycosylated haemoglobin. The significantly higher percent -cell granulation scores in the CLE-treated animals give further support to these findings. The reduction in the level of triglyceride and cholesterol indicates its beneficial effect on carbohydrate and fat metabolism. The most characteristic feature of the -cells failure is a specific defect in glucose sensing characterized by loss of first phase insulin secretion in response to a glucose stimulus. In this experiment, the fructose-fed rats exhibited impaired glucose tolerance in the oral glucose tolerance test indicating -cells failure. The improvement in the glucose tolerance in the CLE-treated rats shows its important role in the preservation of islet -cells function.Significant enhancement of the macrophage phagocytosis in the CLE-treated hyperglycaemic rats indicates its possible role in immuno-modulation. ····· 1036187398
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Esta obra es el resultado del trabajo realizado por un grupo interinstitucional y multidisciplinar que involucró a profesores y estudiantes de las Universidades de Córdoba, sede Montería y el Centro de Estudios en Ciencias del Mar (CECIMAR) de la Universidad Nacional de Colombia, Sede Caribe, con el apoyo administrativo y financiero de la Oficina de Administración de Investigación y Extensión de la Universidad de Córdoba. Trabajo enmarcado en los proyectos de investigación: Composición y cambios estacionales de las comunidades de los Crustáceos Decápodos del Departamento de Córdoba y Composición y estructura de la fauna invertebrada asociada a los césped algales en el litoral rocoso del Departamento de Córdoba . ····· 1036190164
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book contains assessment of fiddler crab diversity, revealed presence of three species namely U. annulipes, U. vocans and U. dussumieri in intertidal area of Mumbai, only U. annulipes occur in greater abundance. Physiological and biochemical analysis of U. annulipes shows that, the crab could adjust to various ecological conditions by restoring to physiological and biochemical mechanisms like respiratory rates and tissue metabolites respectively. A thick population of U. annulipes at certain areas where settling of faecal matter was more. Therefore, the species can be seen as cleaning agent of that particular area confirms the important role played by the fiddler crabs in maintaining intertidal ecosystem. Therefore, the data presented in the thesis on diversity and ecology of the fiddler crabs will be helpful in knowing the effect of coastal pollution on macrobenthos in near future. ····· 1036191467
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In the present study, the effects of environmental pollution on aquatic vertebrate biodiversity were studied and inventory of vertebrate fauna of Hub Dam was prepared. During the study, no adverse effects of environmental pollution were found on the aquatic biodiversity except for some minor toxic effects due to trace metals in water. As many as 16 species of mammals, 160 species of birds, 23 species of reptiles, 03 species of amphibians, 29 species of fishes, and 25 species of plants were recorded from the Hub Dam area. There are no serious effects of pollution on the vertebrate biodiversity of the wetland. All the physico chemical parameters were recorded as per limits of WHO Standard. There is a serious decline in water bird population but these are mainly due to social disturbances. Areas near spillway, main dam area, agriculture land/ shallow water, and Hub Canal are the prime habitats of birds in the wetland. The research techniques and information are helpful for graduate and research students of Biological Sciences, Environment and wetlands managers. ····· 1036191760
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The best book you can ever read about the Reconstruction of Avian Skull (Chondrocranium). This book is very useful to under and postgraduate students whom they are intersted in comparative anatomy, histological and embryological study. In this book there are a lot of histological embrological and developmental techniques. you can read about the development of the nasal, orbital and auditory region of the columba livia as an example of avian skull. you can also read about the development of cranial nerves. ····· 1036192356
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The known species of the Egyptian ants are revised. One hundred and forty seven species and subspecies are recognized. Of these, six species are described as new: Cerapachys collingwoodi Cataglyphis agostii Messor eglalae Monomorium dentatum Pheidole fadli Tetramorium shirlae one genus Oxyopomyrmex Andre, 1881 new to Egypt thirteen new record species one new record species to the palaearctic region Cardiocondyla minutior Forel, 1899. ····· 1036199590
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Half of our planet`s animals and plants live in tropical rainforests. Increasing human population growth and persistent poverty in many developing countries continue to influence ecological degradation, especially of forests and wildlife. About half of the forests that once covered the Earth have vanished completely due to intense human impact. Another 40 million acres of forest continue to disappear each year. If the current rate of deforestation continues, today`s forests will be gone by the year 2081. The conflict between human progress and the survival of forests and wildlife is not likely to end anytime soon. The diversity of plants and animals are declining, carbon emissions are above the earth`s carbon-fixing capacity, and human population pressure is exceeding the population of all species of nonhuman primates combined. Thus human survival depends on the future wise and ethical use of natural resources, mainly the forest and wildlife. In this monograph, the author based on his three decades of experience in watching wildlife highlights the urgent need for conservation with case studies from three tropical continents. ····· 10361100779
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Preparing a new comprehensive work on dustywings became necessary, as more than half of the known coniopterygid species were described after the last monograph of this family. Present work gives a check-list of all of the valide living species of Coniopterygidae (Insecta: Neuroptera), as well as entirely new identification keys for the satisfactorily known species, for the species groups and the supraspecific taxa of the family. The check-list contains data about the geographical distribution of the species and taxonomic groups, and in some cases taxonomic or nomenclatural remarks. For convenient use of the identification keys a number of figures are given. The subdivision of some larger genera and subgenera is modified also. This monograph shuld be useful for insect taxonomists and for entomologists interested in researches on agroecosystems. ····· 10361101948
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is about the developmental history of a freshwater prawn, Macrobrachium lamarrei (Edwards, 1837), which is common in the Indian Subcontinent. Habitat, food and morphological characters of this prawn are given, along with the sexual dimorphism, reproductive parameters and developmental phases. Relationship between the bottom type, aquatic plants and population growth of this species are provided. The effect of two commonly used agrochemicals on the survivability of eggs and population are also described. ····· 10361113120
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A polyculture was carried out to compare the growth performance and meat quality of Labeo rohita, Catla catla and Cyprinus carpio, under the influence of fertilization and supplementary feed in various combinations. It was found that the manipulation of Cyprinus carpio along with the major carps and the provision of supplementary feed and fertilization enhanced the growth rate, production, meat quality in semi intensive culture system. ····· 10361113163
····· lezzter Preis 71.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In total 146 species of acridid grasshoppers & locusts belonging to 65 genera in five families under the superfamily Acridoidea. Out of these, two genera Sohanra and Poekilomorpha, and 11 species, viz., Coptotettix spinatus, Hedotettix variegatus, H. mingoraensis, Paratettix femofasciatus, Ergatettix crasipes aff., E. crasipes bengalensis, Dericorys nushkiensis, Sohanra cylindrica, S. spathulata, Kirmania immaculata, Poekilomorpha fasciata are new to science. In addition, 49 species and one family Eumastacidae have been recorded for the first time from Pakistan. The characters of the family group have not been given due to their easy availability in literature, but keys for both higher and lower taxa have been constructed. Only the deviations from the published description and the new characters, if any, of all genera and species are also included. The new species and allotypes have been described in detail. Measurements (max. length and width) of different parts, such as body, pronotum, tegmina and hind femur alongwith illustrations of various taxonomically important parts are also given. ····· 10361113518
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A voluminous literature is available on the comparative anatomical and histological aspects of various organs of a number of species of bats from different parts of the world. The present book deals with the structural organization including study of both the anatomy as well as histology of a single species of bat. It is a type study of an insectivorous Leaf-nosed bat Hipposideros speoris (Scneider,1800), which is widely distributed in the Indian sub continent. The presentation of the subject is made simple, but without omitting the minute details of the critical studies of various organs of each and every system of the body. The line drawings and microphotographs are self explanatory. Special mention of the scale bar, staining technique followed and expert comments for each plate provide a complete perception of the subject. This book may prove to be a ready reference for the biologists in general and the researchers interested in various fields of study pertaining to bats ····· 10361114488
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Literature survey clearly indicates that fresh water prawns, despite being important member of food chain, good bio-indicator and having high economical value, have not been properly studied in relation to metal toxicity. Considering economical and good bio-indicator value of fresh water prawns, present work has been taken into account to evaluate behavioural, haematological and histopathological effects of mercuric chloride and nickel chloride on Macrobrachium lamarrei and Macrobrachium dayanum, prawn species, abundantly available in Lucknow. The research work incorporated in present thesis is represented in three sections. Section-I deals with bioassay experiments Section-II deals with behavioural, haematological and histopathological effects of mercuric chloride while Section-III deals with behavioural haematological and histopathological effects of nickel chloride on fresh water prawns, Macrobrachium lamarrei and Macrobrachium dayanum, good bio-indicators and potential animals for fresh water aquaculture. ····· 10361114748
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Arsenic, a potent toxic mutagenic and xenobiotic metalloid, has been detected during the last 5 years as a major pollutant of drinking water in Bangladesh, Northern Chile, Thailand, Taiwan, China, Inner Mongolia, Mexico, Argentina, Finland, Hungary and India. Both the Agency for Toxic Substances and Disease Registry and the US Environmental Protection Agency have given the highest priority to arsenic-related toxic studies and ranked it number one on the most hazardous substances list, based on a combination of its incidence, toxicity and potential for human exposure. Survey reports revealed that the intake of arsenic-contaminated drinking water caused several reproductive disturbances in women. There is a lack of literature data related to the effect of arsenic on male reproduction, particularly at the dose levels occurring in drinking water in wide areas of India and in other countries. Therefore we have evaluated systematically and presented data in this book whether arsenic has any significant effect on reproduction and metabolism in adult male Swiss albino mice. This book also provides valuable information on protective effect of thiol compounds on arsenic-induced toxicity. ····· 10361115404
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Aphids are most important group of phytophagous insects having several biological peculiarities such as prolific breeding, polyphagism, advanced degree of polymorphism, telescopic reproduction, host alternation and high potential for rapid evolutionary changes because of parthenogenesis and polyvoltinism. Some aphids are anholocyclic (parthenogenetic), while others living in colder climate are holocyclic (sexual generation alternates with parthenogenetic ones). About 20% of the described species from India are parthenogenetic virginoparous for most of the year but capable of sexual reproduction with production of eggs. The present contribution is a first consolidated account of aphid sexuales so far known from India. It incorporates detail illustrative account, morphological descriptions and morphometry of aphid sexuales with necessary keys for identification. Light has also been thrown on the holocycly of aphids occurring in Indian scenario. The book, thus, fulfils the maximum lacunae found in the earlier works on the sexual morphs of India. It is believed that the contribution, being first of its kind in India will prove a useful addition to the libraries and to the large section ····· 10361115541
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray `It is said that earliest life originated in water but now we are facing danger of being extinct due to contaminated water`.So this book is focused on Microcystis aeruginosa and their toxic effect on fish life.Microcystis is a unicellular, colonial cyanobacterium commonly found in freshwater habitats. This algae characteristically form dense unialgal growth often referred to as a bloom or `tides`. Serious illness such as hepatoenteritis, a symptomatic pneumonia and dermatitis may result from consumption or contact with water contaminated with toxin producing cyanobacteria. Microcystis produces toxin known as `microcystin` and this toxin is responsible for human illness, bird mortality and extensive fish kills. Generally microcystin is hepatotoxic in nature. The entry of microcystin into hepatocytes of liver and other targeted tissues is accomplished by the broad specificity anion transport bile acid carriers. Extensive research has shown the impact of Microcystis extract resulted apoptosis, necrosis, pycnotic nuclei, blood depletion, hemorrhage, swelling in fish liver, gills, kidney, gonads and showed variations in biochemical, haematological and blood protein studies. ····· 10361118525
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In agricultural habitat 10 bumblebee species were recorded of which 68.62% bumblebees were dominated by five species. However, in non-agricultural habitat 13 bumblebee species were recorded and more than 50% bumblebees were dominated by four species. Significant variations were observed in the species richness of non-agricultural habitat but none in case of abundance at habitat level. However, same was true in case of non-cropped area as compared to cropped area in agricultural habitat which reflected the importance of non-cropped area as a refuge area for the development of bumblebee colonies which ultimately play a vital role in the pollination of crops, increasing their quality and quantity. Trifolium alexandrinum. Medicago sativa and Solanum tuberosum were visited by all bumblebee species in the cropped area. Forage species separated in to two conspicuous groups depending upon their utilization by bumblebees as a short and long tongued bumblebees. Long tongued bumblebees were only attracted to Ranunculus sp., Raphanus raphanistrum, Centaurea cyanus, Prunella vulgaris, Cana indica, Stachys spp., Cirsium sp., Trifolium pretense, Delphinium brunonianum and Lonicera periclymenum. ····· 10361118893
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Nullah Aik and Nullah Palkhu are important water resources in Sialkot and receive industrial effluents, municipal sewage that degrade the water quality and disrupt the ecological integrity. During present study, water and fish samples were collected at 18 sampling sites on seasonal basis from 2004 to 2006. Water samples were analyzed for 38 parameters. Cluster Analysis identified three different classes relatively unimpaired, impaired and less impaired regions on the basis of variations in water quality. COD, TDS, Fe, Pb, Cd, Cr and Ni were found to be higher than the permissible limits Significant variations in heavy metals accumulation were observed in organs of studied fish species. The concentration of Pb and Cr was recorded higher than permissible limits. A total of 24 fish species of 12 families were recorded. Biological Integrity index was developed for the assessment of stream health. Sites located in upstream of Nullah Aik showed higher IBI scores, which dropped to its lowest in downstream sites near Sialkot city, which gradually improve far downstream. These results can be helpful for future management of other polluted streams and small rivers in the same eco-region. ····· 10361118949
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Zimbabwe`s small ruminant population comprises 3.3 million. Approximately 97% of the goats are owned by the smallholder farmers. The majority of goats are indigenous, either of the smaller type (East African goat) found in the eastern and central areas or the larger type (Matebele goat) of the southern and western Zimbabwe Goats form an integral but rarely dominant component of smallholder farming system in Zimbabwe. Goats are the second species after cattle to provide people in the country with red meat. They are most valued primarily for meat production although by products such as blood and bone meal have a commercial value. The goat industry has a potential to contribute to urban meat supply in two ways: by proving low cost meat for poorer urban dwellers as well as meat of a defined quality and consistent standard for supermarket and chain stores. Meat production continues to be the subject of much research and carcass characteristics have been central to this effect but not much has been done on carcass evaluation in indigenous goat breeds in Zimbabwe. However more research work on goat meat quality attributes such as fatty acids profiles may be necessary in goats ····· 10361132393
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This work revealed the destructive effects of sublethel doses of 4-nonylphenol on the heamatological parameters, biochemical variables and hormonal activity of the adults African Catfish, Clarias gariepinus. Also, histopathological and ultrastructure studies of some organs using TEM confirmed these effects. These destructive effects were studied on the early developmental stages in terms of incubation time, fertilization rate, hatching rate, mortality rate, morphological malformations and histopathological changes using SEM. The genotoxicity of this pollutant was studied using SDS-PAGE, RAPD-PCR, apoptosis detection and micronucleus test. ····· 10361134589
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ecology is the science that studies relationships between living organisms and the environment they live in. Various habitats are studied and investigated to understand the composition and such interrelationship amongst these components. Such studies help us to understand as how to maintain high quality of water and environmentally viable water resources. The present work is an effort to contribute towards limnological and biological aspects of pond ecology. The text includes various facets and dimensions of physico-chemical factors, planktons, micro-invertebrates and other related areas. The text is supported by field data, their statistical analysis, graphs and exhaustive bibliography. ····· 10361147343
für 79.00€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The Forest Owlet is a critically endangered bird species rediscovered after 113 years in November 1997 in Satpuda Mountains of Central India. The Forest Owlet utilizes open forests with moderate undergrowth and least anthropogenic disturbance. It preys upon rodents, skink, agamid and insects and shows seasonal variation in diet. It shows nest site fidelity during breeding season which plays a vital role in breeding success. Predation of fledglings, ovicide, infanticide and egg stealing from nest by humans are the major factors influencing the breeding success of the Forest Owlet. Encroachments, increasing use of pesticide and rodenticides, illicit woodcutting, grazing and superstitions among tribal are influencing the survival of the Forest Owlet. Community management, joint forest management and alternative livelihood through sustainable development are the key factors in long term conservation of the Forest Owlet. ····· 10361113476
····· lezzter Preis 79.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieses aufwändig produzierte und reich illustrierte Werk aus dem Jahr 1890 führt in die Welt der in Deutschland lebenden Reptilien und Amphibien ein. Es ist nicht nur als historisches Dokument von Bedeutung, sondern beschreibt darüber hinaus etlich heute - drei Generationen später - ausgestorbene Tierarten. ····· 10361172880
für 80.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Se presenta la revisión taxonómica de las 30 especies del género Macrodactylus que habitan en América Central. Incluye la descripción de diez especies nuevas para la ciencia, un nuevo registro para la zona y once nuevos registros nacionales, se proporcionan fotografías e ilustraciones de sus estructuras morfológicas y de los genitales de machos y hembras, asi como una clave que facilita su identificación. Se realiza un análisis filogenético preliminar que esclarece la monofilia del género, teniendo como grupo hermano al género Ceraspis. La distribución que siguen las especies en Centroamérica es sobre dos trazos generalizados o componentes bióticos: el Trazo Septentrional o del norte y el Trazo Meridional o del sur, las provincias con mayor numero de especies son Chiapas (16), Oriente de América Central (15) y Costa Pacifico Mexicana (10), mientras que las provincias con mayor numero de especies potencialmente endémicas son: Oriente de América Central (6), Chiapas (3), Occidente del Istmo de Panamá (2) y Costa Pacifico Mexicana (1). ····· 10361136663
····· lezzter Preis 89.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieser Band bietet ein Register zu allen in dem `Handbuch der Reptilien und Amphibien` behandelten Tierarten. ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· ····· 10361206211
····· lezzter Preis 99.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Das `Kompendium` ist seit vielen Jahren ein zuverlässiges und bewährtes Nachschlagewerk für Ornithologen, engagierte Vogelbeobachter und alle, die im Natur- und Landschaftsschutz mit Fragen über Vorkommen, Biologie, Verbreitung, Bestandsentwicklung, Gefährdungsstatus usw. befasst sind! Der Aufbau des Werkes orientiert sich an der neuesten systematisch - taxonomischen Liste, deren Entwicklung und Veränderung hier erstmals erläutert und begründet wird. Die für die zweite Auflage komplett neu erstellten Verbreitungskarten enthalten detaillierte Informationen zur Brutverbreitung sowie den Durchzugs- und Wintergebieten nördlich der Sahara. Diese Sonderausgabe umfasst auf der Grundlage der aktuellen Auflage sowohl sämtliche Sperlingsvögel (Band 2) als auch alle Nichtsperlingsvögel (Band 1). ····· 10361206206
····· lezzter Preis 99.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Schildkröten gehören zu den faszinierendsten Wirbeltiergruppen überhaupt! In diesem Handbuch werden nicht nur alle in Europa vorkommenden Bach-, Land-, Sumpf- und Schmuckschildkröten ausführlich beschrieben, sondern auch sämtliche Arten von Meeresschildkröten, die in europäischen Gewässern anzutreffen sind - auch, wenn ihre Brutgebiete nicht an den Stränden Europas liegen. Jedes Artkapitel ist nach einem bewährten, einheitlichen Schema aufgebaut, was Vergleiche der biologischen Fakten ermöglicht. Detaillierte Verbreitungskarten unterstützen den Text. Die große Zahl hervorragender Zeichnungen hilft bei der Bestimmung. Abgerundet und ergänzt wird dieses `Handbuch` durch ein eigenes Kapitel über die fossilen Schildkröten Europas. ····· 10361206207
····· lezzter Preis 108.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Das Handbuch enthält umfassende artbezogene Informationen zu Bestimmung, Biologie, Verbreitung, Ökologie und Verhalten aller in Europa vorkommenden Reptilien und Amphibien. Detaillierte Zeichnungen und Verbreitungskarten ergänzen den Text. Band 6 des Handbuchs nimmt aus mehreren Gründen eine Sonderstellung in der Reihe ein. Die hier behandelten Inselgruppen gehören politisch zu Europa, sind aber geographisch gesehen eindeutig Teile Afrikas. Da die Inseln jedoch nie einen festen Kontakt mit Afrika hatten, hat sich dort eine einmalige endemische Fauna entwickelt, zu deren spektakulärsten lebenden Vertretern die Echsen gehören. ····· 10361206185
····· lezzter Preis 108.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieser zweite Band zu den Schildkröten Europas befasst sich mit der faszinierenden Biologie der Meeresschildkröten. Meeresschildkröten sind auf Grund ihrer marinen Lebensweise und ihrer ausgedehnten Wanderungen wesentlich `internationaler` als alle anderen Arten der Reptilien. Aus diesem Grunde musste hier der geographische Rahmen anders gesteckt werden, als in den anderen Bänden des Handbuches. So wurden alle Arten von Meeresschildkröten aufgenommen, die in europäischen Gewässern auftauchen, auch wenn ihre Brutgebiete nicht an europäischen Stränden liegen. Abgesehen davon sind die einzelnen Artkapitel aber wieder nach dem gleichen Schema wie in den vorangegangenen Bänden strukturiert, so dass ein direkter Vergleich der biologischen Fakten gewährleistet ist. Eine wichtige Ergänzung zu den Artkapiteln der beiden Schildkröten-Bände liefert ein umfassendes Kapitel zu den fossilen Schildkröten Europas. ····· 10361206198
····· lezzter Preis 108.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dieser letzte Teilband des Handbuchs der Reptilien und Amphibien Europas behandelt die Wasserfrösche der Familie Ranidae (Echte Frösche). Alle 13 Arten werden von ausgewiesenen Fachautoren ausführlich nach dem bewährten Gliederungsschema des Handbuchs - Diagnose, Beschreibung, Verbreitung, Ökologie, Verhalten und Entwicklung - beschrieben. Ausgewählte Farbfotos auf zwei Farbtafeln verdeutlichen zusätzlich die farblichen Unterschiede zwischen den einzelnen Arten. ····· 10361206213
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