Geographic Variation and Systematics of Salamanders of the Genus Dicamptodon Strauch (Ambystomatidae)
Author: Ann E. Pace
Publisher:
Published: 1974
Total Pages: 682
ISBN-13:
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Author: Ann E. Pace
Publisher:
Published: 1974
Total Pages: 682
ISBN-13:
DOWNLOAD EBOOKAuthor: Ann E. Pace
Publisher:
Published: 1974
Total Pages: 264
ISBN-13:
DOWNLOAD EBOOKAuthor: David A. Good
Publisher: Univ of California Press
Published: 1992-01-01
Total Pages: 108
ISBN-13: 9780520097780
DOWNLOAD EBOOKThe authors analyze the morphological, biochemical, and ecological differentiation of salamanders endemic to the Pacific Northwest, the Torrent Salamanders, Rhyacotriton. The authors analyze the morphological, biochemical, and ecological differentiation of salamanders endemic to the Pacific Northwest, the Torrent Salamanders, Rhyacotriton.
Author: U.S. Fish and Wildlife Service
Publisher:
Published: 1976
Total Pages: 826
ISBN-13:
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Publisher:
Published: 1994
Total Pages: 790
ISBN-13:
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Publisher:
Published: 1995
Total Pages: 104
ISBN-13:
DOWNLOAD EBOOKAuthor: Robert C. Thomson
Publisher: Univ of California Press
Published: 2016-06-21
Total Pages: 407
ISBN-13: 0520964837
DOWNLOAD EBOOKOne 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: R. Bruce Bury
Publisher:
Published: 1991
Total Pages: 40
ISBN-13:
DOWNLOAD EBOOKAuthor: Julio A. Lemos-Espinal
Publisher: Texas A&M University Press
Published: 2015-11-02
Total Pages: 626
ISBN-13: 1623493137
DOWNLOAD EBOOKIn the first bilingual work on the reptiles and amphibians of the US–Mexico border, top herpetologists come together to describe the herpetofauna of the states of this region, which includes more than 600 species of toads, frogs, salamanders, turtles, sea turtles, alligators, lizards, snakes, and sea snakes that are found along the almost 2,000-mile border between the two countries. Each chapter is devoted to one state—four in the US (California, Arizona, New Mexico, and Texas) and six in Mexico (Baja California, Sonora, Chihuahua, Coahuila, Nuevo León, and Tamaulipas)—with text in both English and Spanish. The chapters contain an introduction to the area, a review of the research, a sketch of the state’s physiography, and a description of the species present as well as the pertinent conservation issues they face. A color photo gallery includes images of nearly all species. Almost 40 percent of the featured native species are shared between the US and Mexico, reminding us that animals depend on the integrity of natural landscapes and proving the need for a comprehensive, bilingual reference to help lead a shared effort in the management and conservation of the borderlands.
Author: Stanley Keith Sessions
Publisher:
Published: 1985
Total Pages: 742
ISBN-13:
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