für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The hydrological, morphological and biological characteristics of low order mountain streams are closely linked to the catchment characteristics. Clearance and replacement of riparian vegetation with cultivated crops and tree communities may significantly affect their structure and function. This study focused on the impacts of catchment land use changes on the limnology of low order tropical streams. Striking differences were found between the two reaches, with the stream reach adjacent to the agricultural catchment exhibiting elevated and highly variable discharge and temperature regimes, conductivity, pH, ionic constituents, sediment and nutrient loads. Total litter standing stock, was however, significantly higher at the forested site (177.3 37.5 gDW.m2) than the cultivated site (81.7 32.9 gDW.m2). Total benthic macroinvertebrate abundance, diversity, evenness and species richness were higher at the cultivated stream. It is concluded that changes in catchment land use from native forestry to agriculture impacted strongly on the stream ecological conditions by causing changes on the stream morphology, hydrology, water quality and riparian vegetation composition and cover. Th ····· 10361147428
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This study describes metacommunity structure of pond-dwelling anuran larvae along environmental gradients in Southeastern Brazil. It represents an important step towards understading what regulates the diversity and distribution of anuran amphibians in tropical environments. In the first chapter I investigated the role of abiotic factors in the spatial and temporal distribution and diversity of tadpoles. I found that canopy cover was the monst important variable influencing the occurrence of species. The second chapter evaluates the niche partitioning in three important axes: food, time and space. I found that tadpoles overlaped in food resource use, but differed in spatial distribution and temporal occurrence. Lastly, the third and last chapter dealt with joint habitat selection by tadpoles and predaceous aquatic insects at the metacommunity scale. The results showed that tadpoles and insects were randomly distributed in ponds. Further analysis pointed out that they appeared to select ponds irrespective of each other, but according to similar pond characteristics. Data sets and further information can be found at: goo.gl/RdtZO ····· 10361147365
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Bhubaneswar a coastal urban city is situated along the eastern part of peninsular India in the state of Odisha. It is a rapidly developing city in terms of eduction, economy and infrastructure. The city is well populated along with growing number of vehicular traffic. Various large scale and some small scale industries have developed around the outskirts of this city. So air pollution is a great concern now a days through vehicular, industrial as well as agricultural sources. So preliminary information is required for planning a survey. Therefore, this book would provide a bottom knowledge about the present status of the ambient air quality of the city. A monitoring work along with a quantitative study of soil and air was under taken. This work could specifically be useful to the students and initial stage researchers in the field of earth, atmospheric and environmental sciences. ····· 10361147311
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book gives an advancement of the theory of games by linking individual variation to fecundity of a given individual. Methods are given for combining a Game Theory Matrix and a Leslie Matrix, to come up with a mixed, Aggregated Model. Applications have been done to Marine fishes, and equilibrium structures for Optimal harvesting are also determined. The book is well suited for graduate and undergraduate students who would like to improve their knowledge of Ecology, as well as Population dynamics. ····· 10361147284
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This study shows that bacterial species found in highly toxic environment are capable of degrading high toxic wastes like xenobiotic compounds, PAH etc. I had isolated bacteria from tannery soil that is highly toxic in nature. Bacterial species growing in such an environment are capable of sustaining in adverse condition and highly adaptable to condition that are unsustainable to other species. Bacterial species isolated from such an environment can be used for various bioremediation purposes. Though till now we could not find any literacy showing Bacillus spp. showing engine oil degrading potential, but in our present study we found Bacillus spp. showing the maximum oil degradation potential. It has some advantages over the Pseudomonas spp., as it is less pathogenic in comparison to the Pseudomonas spp. and can be handled in normal lab conditions and can also be recommended to use in bioremediation purposes in the treatment of engine oil as our study shows it giving the best cell density when growing on a media containing used engine oil. ····· 10361147282
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Livelihoods and incomes of rural communities can be improved through growing, processing and marketing products from Indigenous Fruit Trees. However, until recently there has been limited quantitative evidence to support this. This book therefore presents findings of a project on Use and Conservation of Indigenous Tree Diversity for Improved Livelihoods in Uganda. It is aimed at students, researchers, government, NGOs, development agencies and practitioners in agroforestry. ····· 10361147122
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present manuscript is an organized written text emphasizes the co-ordination between the living beings and the environment in which they live. This book is an effort to include the contribution of the experts and scientists of various fields providing an insight into the new and old concepts of ecosystem. The aim of the book is to update the readers with these active and exciting areas of research and to build foundation on which future study of its various facts may be based. ····· 10361147057
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book made an attempt to understand the water quality level of selected lakes in Bangalore city, India. The Study covered three major lakes of bangalore city. Study found that, all the lakes are polluted due to anthropogenic activities. The study results showed that, YLC and Bellandur lake were in europhic condition. hebbal ws oligotrophicIt also recommends that, the urgent need of conservation of Urban lakes for various ecological benefits. Study recommends and urge upon, the Local bodies of state government and Pollution control Agency to stop development of residential layouts and encroachments that is going on briskly to prevent further deterioration of Lake water quality due to the likely generation and discharge of sewage water and dumping of solid waste into the Lake. Study also recommends to study and prepare watershed management techniques focus on the best management practices and include on-site techniques such as controlling agricultural pollutants through crop rotations, manure management, grassed water ways, controlling erosion and sedimentation etc ····· 10361147036
····· lezzter Preis 53.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Integrated conservation has gained ground as pertinent means to preserving some of the world`s most endangered species. Bearing this in mind and implementing it as means of preemptive actions to increase management and conservation plan efficiency, while reducing collateral damage to non-focal species, this book researches the implications for the conservation of iconic creatures: crocodiles. Assuming that the more similar two species are, the more likely they are to compete, the book negotiates a natural state ratio between sympatric crocodilians using skull shape comparison. It presents a step-by-step process through the basics of taking photographs of skulls to the mathematics of theoretical ecology in order to define previously unconsidered applications of morphometrics within ecological conservation. Along the way, it also highlights landmarks of interest within crocodilian skull morphology and concerns with currently used conservation methods. The book was written for anyone actively involved in the conservation of crocodilians and those pursuing applicability within sciences. ····· 10361147015
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This study investigates the influence of fire frequency on woody vegetation in northern Gonarezhou National Park (GNP), Zimbabwe. The study first examines the nature of fire frequency patterns in the GNP, their relationship with rainfall and later, the resultant impacts of fires on woodlands. The break point year in the fire occurrence trends in GNP was 1987. There was a strong positive correlation between number of fires and year (r = 0.79) between 1969 and 1987. In contract, between 1987 and 2005, there was a negative correlation between number of fires and year (r = 0.49). There was a positive correlation (r = 0.44) between the percentage area burnt by fires and annual rainfall in GNP between 1969 and 2005. A total of 64 woody plant species were recorded in the two woodlands namely, Combretum apiculatum (44) and Colophospermum mopane (20) from 1,986 individual woody plants sampled. In both the C. apiculatum and mopane woodlands, high species diversities were found in the high fire frequency burn zones. The study results suggest that repeated burning alters woodland structure and composition in savanna areas. Developing adaptable fire management plans is hence paramount. ····· 10361147010
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Honeybees are notably the most important insect species playing role on plant pollination and producing the hive products however, their populations are declining because of the managerial and ecological problems. These problems and challenges are threatening the bee industries there by bio diversity, crop productivity and the production of the quality hive products. This book, therefore, provides information on the feeding management of domesticated-exotic honeybee, Apis mellifera Lin. during the dearth period and its impact on comb building, foraging (pollen and nectar collection and storage of the hive products), brood rearing, colony strength and the net return in the sub sequent honey flow season/s. This book also digs out the associated problems and challenges and needed improved feeding management practices of the honeybee colonies. This information should be especially useful to beekeepers, professionals who are working in the field of beekeeping, crop pollination, biodiversity conservation, value addition and marketing of the hive products. ····· 10361146843
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Farmers in poor countries are among the most vulnerable victims of increasing climate variability and climate change. They receive, however, little assistance from governments and scholars alike. Those working in the hard agricultural sciences often don t know the actual needs and potentials for grassroot climate adaptation. Those working in the soft sciences supporting farmers often don t understand vulnerabilities or opportunities of poor people created by the consequences of a changing climate. Absence of extension services well trained in the degrading environmental and social conditions of farmers worsens the situation. A rural response to climate change must bring among others applied anthropology and applied agrometeorology closer to the livelihood of farmers. Farmers must get the opportunity to learn about climate preparedness and climate adaptation potentials in a true partnership with dedicated scholars. This book reports on some attempts to bring farmers and scholars together in a few of such partnerships in Indonesia. Agrometeorological learning of farmers to better cope with climate change is shown to be difficult but possible if scholars want to listen to farmers. ····· 10361146728
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dryland ecosystems cover more than one third of the earth s land surface and are home to about one-fourth of the earth s population. Biological diversity are heterogeneously distributed through out the earth`s surface.However, they are facing crucial problems for survival. The biggest challenge in the drylands of the globe in general and that of Ethiopia in particular is environmental degradation aggravated by anthropogenic activities. However, there are areas which have economical and social benefits at local, national and international level and need due attention for conservation. Boke salt landscape is an area formed by volcano, where its vegetation come up through succession and has multipurpose functions. Hence, this study provides the detailed analysis of woody plant species diversity and identifies plant communities which are important for the conservation purpose. It also provides comprehensive analysis on plant-soil relationship across altitudinal gradient and soil-altitudinal gradient relationship. Furthermore, it provides important information on the socio-economic aspects of the Boke salt landscape. Appropriate management and research recommendations are also forwarded ····· 10361146589
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Nepal is one of the major countries for Tiger habitat. Now, trend of tiger population is on declining trend due to array of causes such as low abundance of prey base, habitat fragmentation, habitat degradation, habitat alteration, illegal poaching, hunting etc. So this study was made to know the existent setting for the indication of Tiger population by prey base in western Nepal. Habitat wise Abundance and distribution of Tiger prey base has been illustrated in this book, similarly some threats are described present in corridor area which may imitate the issue of landscape level conservation. Hence, this book is of high interest to all environment related stake holders who are interested in gaining the deep understanding of Tiger, relating it with prey base especially for Wildlife Manager, Biologist, Ecologist, Forester and Environmentalist too. ····· 10361146551
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The most polluted lake in Central America, Amatitlan Lake, receives its effluents from a largely urbanized watershed that extends 381 Km2. With more than half of Guatemala City situated within the lake s watershed, sediments, polluted runoff and sewage constantly get deposited into the lake, turning it into a dead, eutrophic body of water with high contamination ratings comparable to a sewage tank. Most people living on in this watershed don t imagine that the untreated domestic waste that they dump into the river is partly to blame for the catastrophic degradation of Lake Amatitlan. This research characterizes the watershed of the lake, looks at the contaminants and issues affecting it, evaluates remediation strategies currently being used and suggests alternative strategies based on ecological restoration design. These new strategies are inspired by case studies of effective modern practices for filtration, remediation, management and environmental education. Additionally, the design of an educational wetland park near the lake will demonstrate how natural processes can be used to filter polluted effluents and provide a habitat for native species. ····· 10361146518
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Worldwide, dams played a key role in development of a country s agriculture and economy. They supply water to meet industrial and domestic needs, control floods and generate power. The Massanjore Dam was build in 1956 on river Mayurakshi, located in Dumka, Jharkhand (then Bihar) servers the purpose of controlling flood, irrigation of fields in Jharkhand and supply of 4MW electricity to the state of West Bengal. As a result of construction of the dam, about 100 villages with a total population about 15,000 persons, mostly tribal, were affected in the reservoir area. The catchment area is 1,860 sq. km and maximum submerged area is 9,430 ha. The area has been experiencing soil erosion due to inadequate forest cover, denudation of forest, uncontrolled grazing. Some program of social and farm forestry were launched but have not made any significant headway. There is lot of scope of pisciculture and tourism in the reservoir area but unfortunately no initiative has been taken in this direction. The study indicates that the dam improved the socio-economic status of the area but environmentally it needs restoration and upgradation for maximum benefits in the area. ····· 10361146335
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The cultivation of vegetables in the humid tropics, which are mostly characterized by high temperature and humidity, abundant solar radiation throughout the year and occasionally high rainfall, is a vast challenge as well as a great opportunity. High humidity as a consequence of heavy rainfall and high temperatures are to be mentioned as the predominant constraints for vegetable production in the humid tropics. Furthermore infestations by pests and diseases lead to severe crop-damages, thus, the consumption of pesticides increases remarkably. In order to address these problems, an adapted greenhouse, having large ventilation opening area at 105% of total floor surface area and covered with insect-proof nets has been developed and tested. The main goal of this recent study was to investigate the physical and technical basis of an integrated management system of an adapted greenhouse for sustainable vegetables production in the humid tropics. ····· 10361146283
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Kumaon Himalaya, a significant unit of Indian Himalayas experienced major changes in landuse pattern during the last two centuries that resulted degradation and fragmentation of extensive oak forests. The degradation and fragmentation of habitats have brought negative impact on status and abundance of animals of this region. The avian communities are considered to be the best indicator of a functional forest ecosystem and it is known that if bird communities are protected then other communities will be protected themselves. Therefore the present study carried out on the ecology, threats and conservation of the avian communities in Himalaya. The book contains 8 chapters and includes status and abundance, habitat use, foraging pattern, threats and conservation strategy for birds. The book will be useful for research scholars, students, teachers, forest conservationist and officials who are interested in avian studies, methods and conservation strategies in general and particularly for the area. ····· 10361146248
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Benefit sharing to the local community in buffer zone (BZ), one of The World Conservation Union (IUCN) Protected Area Categories, could be an effective tool in bringing local people to the mainstream of biodiversity conservation. However, low level of awareness towards conservation which is second priority of the local dwellers in lack of alternate economic opportunities induces park-people conflict issues undermining conservation goal especially in the developing countries like Nepal. The detailed ground information about the complex interaction of socioeconomic structure and natural resource use in the area recognizing main stakeholders is a basic step necessary to carry out before BZ delineation. For the same, this research conducted in middle mountain National Park in Nepal, emphasizes on socioeconomic dynamism and its linkage and/or dependency to natural resource. It is aimed to identify the concerned groups, major stakeholders and areas that should be considered particularly. This book is useful for multidisciplinary bodies such as economists, administrators, social working groups, policy makers, conservationists and researchers. ····· 10361146230
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The concept of cumulative effect assessment (CEA) as a theory and tool for the quantitative assessment of cumulative effects (impacts) on multifunctional wetlands was furthered in view of a an inherent and chronic lack of environmental data sets in the vast majority of ecosystems in the developing Asia that is a major stumbling block on the way of CEA. Whereas expert opinion as a CEA method has been long recognized, a participatory rural appraisal (PRA) as another important method was largely overlooked despite its strong validity under the circumstances when the required environmental data sets are not available. The gaps due to the lack of parametric data hence call for further development of PRA to complement with the CEA tool. The need to overcome the shortage of data sets is thought to be particularly important due to the fact that the developing world comprises most of the world s ecosystems, biodiversity and human population. ····· 10361146168
für 45.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The science writer John Ellor Taylor presents a handbook to public aquaria. He covers their history and construction, explains the different forms of aquaria and describes the various animals and plants that can be kept in those diverse aquarium types. With numerous illustrations and alphabetical index. Reprint of the 1910 edition. ····· 10361138564
für 49.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Zoologe und Planktonforscher Otto Zacharias hat in seinem zweibändigen Werk eine Aufsatzsammlung zur Biologie des Süßwassers zusammengetragen.Der zweite Band betrachtet u. a. die Süßwasserfische und das Tierleben an den Ufern der Gewässer, gibt aber auch einen Überblick über die Aufgaben von Forschungsstationen. Umfangreich illustriert. Nachdruck der Originalausgabe aus dem Jahr 1891. ····· 10361138480
für 49.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Zoologe und Planktonforscher Otto Zacharias hat in seinem zweibändigen Werk eine Aufsatzsammlung zur Biologie des Süßwassers zusammengetragen.Der erste Band enthält u. a. Abschnitte zu Algen, Schwämmen und Krebsen in heimischen Gewässern. Umfangreich illustriert. Nachdruck der Originalausgabe aus dem Jahr 1891. ····· 10361138479
für 23.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Professor Dr. Otto Zacharias gibt in dem vorliegenden Buch Informationen rund um das Thema des Süßwasserplanktons, und zeigt welche pflanzlichen und tierischen Lebewesen stehende und langsam fließende Gewässer besiedeln. Es werden Informationen zu der freischwebenden Organismenwelt von Teichen, Flüssen und Seebecken gegeben. Zacharias stellt die Vielzahl an Organismen im Plankton vor, beschreibt ihre Eigenschaften und den Lebensraum. Der Text wird durch zahlreiche Schwarz-Weiß-Abbildungen anschaulich ergänzt.Mit 57 Schwarz-Weiß-Abbildungen. Überarbeiteter Nachdruck der Originalausgabe von 1911. ····· 10361138078· 1 · ::::: · 2 ·· 3 ·· 4 ·· 5 ·· 6 ·· 7 ·· 8 · ::::: · 30 ·
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