Описание: From the ancient origins of the proboscideans to the present-day crisis of the living elephants, this volume synthesizes the behavior, ecology and conservation of elephants, while covering also the history of human interactions with elephants, all within the theoretical framework of evolutionary biology. The book begins with a survey of the 60-million year evolutionary history of the proboscideans emphasizing the role of climate and vegetation change in giving rise to a bewildering array of species, but also discussing the possible role of humans in the late Pleistocene extinction of mastodons and mammoths. The latest information on the molecular genetics of African and Asian elephants and its taxonomic implications are then presented. The rise of the elephant culture in Asia, and its early demise in Africa are traced along with an original interpretation of this unique animal-human relationship. The book then moves on to the social life of elephants as it relates to reproductive strategies of males and females, development of behavior in young, communication, ranging patterns, and societal organization. The foraging strategies of elephants, their impact on the vegetation and landscape are then discussed. The dynamics of elephant populations in relation to hunting for ivory and their population viability are described with the aid of mathematical models. A detailed account of elephant-human interactions includes a treatment of crop depredation by elephants in relation to their natural ecology, manslaughter by elephants, habitat manipulation by humans, and a history of the ivory trade and poaching in the two continents. The ecological information is brought together in the final chapter to formulate a set of pragmatic recommendationor the long-term conservation of elephants. The broadest treatment of the subject yet undertaken, by one of the leading workers in the field, Raman Sukumar, the book promises to bring the understanding of elephants to a new level. It should be of interest not only to biologists but also a broader audience including field ecologists, wildlife administrators, historians, conservationists and all those interested in elephants and their future.
Автор: R.M. McDowall Название: New Zealand Freshwater Fishes ISBN: 9400732902 ISBN-13(EAN): 9789400732902 Издательство: Springer Рейтинг: Цена: 28732.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: By providing a synthesis of taxonomic and ecological information on New Zealand`s freshwater fish, this book connects the country`s geological past to contemporary distribution patterns. It distinctly separates the roles of history and ecology in a fauna.
With more than 15,000 species, nearly a quarter of the total number of vertebrate species on Earth, freshwater fishes are extremely varied. They include the largest fish species, the beluga at over 7 meters long, and the smallest, the Paedocypris at just 8 millimeters, as well as the carnivorous, such as the piranha, and the calm, such as the Chinese algae eater. Certain species evolve rapidly, cichlids for example, while others transform very slowly, like lungfish. The fossils of these animals are very diverse in nature, sometimes just small scattered bones where sites correspond to ancient river beds or magnificent fossils of entire fish where there was once a lake.
This book covers the history of these fishes over the last 250 million years by exploring the links between their biological evolution and the paleogeographic and environmental transformations of our planet, whether these be gradual or sudden.
Gathers and synthetizes data from a vast number of publications regarding past freshwater assemblages and several fish lineages that invaded freshwaters
Describes the work of the author's own team, concerning fauna from the Cretaceous of France, Morocco, and Thailand
Presents the recent results of the tempo of diversification in freshwater environments and the evolutionary histories of clades and gar lineages
Описание: Drawing on six case studies of wolf, grizzly bear, and mountain lion conservation in habitats stretching from the Yukon to Arizona, this book argues that conserving and coexisting with large carnivores is as much a problem of people and governance.
Автор: Martha J. Groom , Gary K. Meffe , C. Ronald Carrol Название: Principles of Conservation Biology, Third Edition ISBN: 0878935975 ISBN-13(EAN): 9780878935970 Издательство: Oxford Academ Рейтинг: Цена: 27085.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Principles of Conservation Biology, Third Edition is a complete revision of the most comprehensive textbook on conservation biology. Written by leading experts in the field, it introduces major themes and concepts and considers both the biological and social underpinnings of conservation problems and potential solutions.
Описание: Provides a blueprint for managing the challenges of ocean conservation using marine historical ecology an interdisciplinary area of study that is helping society to gain a more understanding of past human-environmental interactions in coastal and marine ecosystems and of the ecological and social outcomes associated with these interactions.
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