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Author: American Society of Ichthyologists and Herpetologists. Herpetological Catalogue Committee
Publisher:
ISBN:
Category : Reptiles
Languages : en
Pages : 384
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Book Description
Author: American Society of Ichthyologists and Herpetologists. Herpetological Catalogue Committee
Publisher:
ISBN:
Category : Reptiles
Languages : en
Pages : 384
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Book Description
Author: Fred Kraus
Publisher: Springer Science & Business Media
ISBN: 1402089465
Category : Nature
Languages : en
Pages : 571
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Book Description
Transportation of species to areas outside their native ranges has been a feature of human culture for millennia. During this time such activities have largely been viewed as beneficial or inconsequential. However, it has become increasingly clear that human-caused introductions of alien biota are an ecological disruption whose consequences rival those of better-known insults like chemical pollution, habitat loss, and climate change. Indeed, the irreversible nature of most alien-species int- ductions makes them less prone to correction than many other ecological problems. Current reshuffling of species ranges is so great that the present era has been referred to by some as the “Homogocene” in an effort to reflect the unique mag- tude of the changes being made. These alien interlopers often cause considerable ecological and economic d- age where introduced. Species extinctions, food-web disruptions, community alte- tions, ecosystem conversion, changes in nutrient cycling, fisheries collapse, watershed degradation, agricultural loss, building damage, and disease epidemics are among the destructive – and frequently unpredictable – ecological and economic effects that invasive alien species can inflict. The magnitude of these damages c- tinues to grow, with virtually all environments heavily used by humans now do- nated by alien species and many “natural” areas becoming increasingly prone to alien invasion as well. Attention to this problem has increased in the past decade or so, and efforts to prevent or limit further harm are gaining wider scientific and political acceptance.
Author: Mark R. Jennings
Publisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 56
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Book Description
Author: Robert C. Thomson
Publisher: Univ of California Press
ISBN: 0520964837
Category : Science
Languages : en
Pages : 407
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Book Description
One of the most important hotspots of herpetological biodiversity in the United States, California is home to many endemic amphibians and reptiles found nowhere else on earth. Many of these taxa have unique ecological and morphological specializations, and their management is an important conservation challenge. Increasing climate change impacts, human development, and extreme drought mean many of these species face an ever-greater risk of extinction. California Amphibian and Reptile Species of Special Concern provides an up-to-date synthesis of the current state of knowledge regarding the biology and conservation risks faced by 45 of California’s most sensitive amphibian and reptile species. With the goal of enhancing management based on the best available science, the authors developed a novel set of risk metrics to identify special concern species and the threats they face, including population declines, range size and restrictions, and ecological specializations and niche restrictions. In addition to detailed species accounts, this book provides a quantitative analysis of the conservation status and pressing management issues facing individual species and the state’s amphibian and reptile fauna as a whole. The volume focuses on identifying threats, concrete recommendations for management and recovery, and future research needs. The text is complemented by detailed distribution maps, color photos, and graphs. Written in nontechnical language, California Amphibian and Reptile Species of Special Concern will be a valuable resource to a broad range of users from resource managers, field biologists, and academic herpetologists to students and recreational naturalists. Published in association with the California Department of Fish and Wildlife.
Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 614
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Book Description
Author: William G. Degenhardt
Publisher: UNM Press
ISBN: 9780826338112
Category : Nature
Languages : en
Pages : 512
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Book Description
The definitive reference source covering the 123 species of amphibians and reptiles found in New Mexico, including over 130 color plates and 100 maps.
Author:
Publisher:
ISBN:
Category : California
Languages : en
Pages : 94
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Book Description
Author:
Publisher:
ISBN:
Category : Wildlife conservation
Languages : en
Pages : 1020
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Book Description
Author: Roland H. Wauer
Publisher:
ISBN:
Category : Chihuahuan Desert
Languages : en
Pages : 684
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Book Description
Author: L. Lee Grismer
Publisher: Univ of California Press
ISBN: 0520925203
Category : Science
Languages : en
Pages : 416
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Book Description
The Baja California peninsula is home to many forms of life found nowhere else on earth. This, combined with the peninsula's rugged and inaccessible terrain, has made the area one of the last true biological frontiers of North America. L. Lee Grismer is not only the foremost authority on the amphibians and reptiles of Baja California, but also an outstanding photographer. He has produced the most comprehensive work on the herpetofauna of the peninsula and its islands ever published. With its stunning color images, detailed accounts of many little-known species, and descriptions of the region's diverse environment, this is the definitive guide to the amphibians and reptiles of a fascinating and remote region. The culmination of Grismer's quarter century of fieldwork on the Baja peninsula and his exploration of more than one hundred of its islands in the Pacific Ocean and the Sea of Cortés, this book gives information on the identification, distribution, natural history, and taxonomy of each species of amphibian and reptile found there. Preliminary accounts of the life history of many of the salamanders, frogs, toads, turtles, lizards, and snakes are reported here for the first time, and several species that were almost unknown to science are illustrated in full color. The book also contains new data on species distribution and on the effect of the isolated landscape of the peninsula and its islands on the evolutionary process. Much of the information gathered here is presented in biogeographical overviews that consider the extremely varied environments of Baja California in both a contemporary and a historical framework. An original and important contribution to science, this book will generate further research for years to come as it becomes a benchmark reference for both professionals and amateurs.
