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 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 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 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 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 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 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
····· 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 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 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 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 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 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 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
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 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
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 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
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
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 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 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 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 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· 1 · ::::: · 9 ·· 10 ·· 11 ·· 12 ·· 13 ·· 14 ·· 15 · ::::: · 20 ·
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