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| Author | : Carlos Davidson |
| Publisher | : |
| Total Pages | : 306 |
| Release | : 2000 |
| Genre | : |
| ISBN | : |
| Author | : Michael J. Lannoo |
| Publisher | : Univ of California Press |
| Total Pages | : 1124 |
| Release | : 2005-06-15 |
| Genre | : Nature |
| ISBN | : 9780520235922 |
Documents in comprehensive detail a major environmental crisis: rapidly declining amphibian populations and the disturbing developmental problems that are increasingly prevalent within many amphibian species.
| Author | : Robert C. Thomson |
| Publisher | : Univ of California Press |
| Total Pages | : 407 |
| Release | : 2016-06-21 |
| Genre | : Science |
| ISBN | : 0520964837 |
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 | : Kevin M. Neal |
| Publisher | : |
| Total Pages | : 170 |
| Release | : 2019 |
| Genre | : |
| ISBN | : |
Amphibians are threatened world-wide, and due to the elusive, seasonal, and often nocturnal habits of adults, biological assessments of amphibian species are often best conducted via genetic analysis of easily-sampled pond-dwelling larvae. Genetic analysis of amphibian species can benefit their conservation in several ways, including identification of evolutionary lineages and subpopulations as fundamental units of conservation, genetic assessment of demography and diversity, and inference of patterns of gene flow among populations and how patterns are affected by environmental variation. In this dissertation I elucidated the evolutionary relationships and population genetic status of a threatened California amphibian (Spea hammondii) at multiple spatial scales using a combination of genetic, genomic, and environmental data. Chapter one utilized limited genetic data to determine phylogenetic relationships of Spea species and used environmental niche modeling to examine ecological differentiation between two allopatric lineages identified within S. hammondii. Chapter two took advantage of a newer genomic-scale dataset of thousands of SNP markers to look at fine-scale patterns of genetic variation among natural and artificial S. hammondii ponds in a highly urbanized region of Southern California. Chapter three also made use of thousands of markers to validate species-level relationships in Spea and used the added genomic resolution to examine relationships within and among genetic clusters and quantified the potential impacts of urbanization on functional genetic connectivity. Broadly, I found that the nominal taxon S. hammondii likely comprises two species. Populations within each species were highly differentiated from one another and had exceptionally low effective population sizes, such that each species lacks sufficient adaptive potential to thrive without intervention. Overall, this dissertation applied a suite of phylogenetic, population genomic, and landscape genomic tools to analyze patterns of genetic variation in S. hammondii to guide ongoing and future conservation efforts.
| Author | : C. Kenneth Dodd |
| Publisher | : Oxford University Press |
| Total Pages | : 585 |
| Release | : 2010 |
| Genre | : Nature |
| ISBN | : 0199541191 |
Describes the latest methodologies used to study the ecology of amphibians throughout the world. Each of the 27 chapters explains a research approach or technique, with emphasis on careful planning and the potential biases of techniques. Statistical modelling, landscape ecology, and disease are covered for the first time in a techniques handbook.
| Author | : |
| Publisher | : |
| Total Pages | : 816 |
| Release | : 2000 |
| Genre | : Dissertation abstracts |
| ISBN | : |
| Author | : Harold Mooney |
| Publisher | : Univ of California Press |
| Total Pages | : 1009 |
| Release | : 2016-01-19 |
| Genre | : Nature |
| ISBN | : 0520962176 |
This long-anticipated reference and sourcebook for California’s remarkable ecological abundance provides an integrated assessment of each major ecosystem type—its distribution, structure, function, and management. A comprehensive synthesis of our knowledge about this biologically diverse state, Ecosystems of California covers the state from oceans to mountaintops using multiple lenses: past and present, flora and fauna, aquatic and terrestrial, natural and managed. Each chapter evaluates natural processes for a specific ecosystem, describes drivers of change, and discusses how that ecosystem may be altered in the future. This book also explores the drivers of California’s ecological patterns and the history of the state’s various ecosystems, outlining how the challenges of climate change and invasive species and opportunities for regulation and stewardship could potentially affect the state’s ecosystems. The text explicitly incorporates both human impacts and conservation and restoration efforts and shows how ecosystems support human well-being. Edited by two esteemed ecosystem ecologists and with overviews by leading experts on each ecosystem, this definitive work will be indispensable for natural resource management and conservation professionals as well as for undergraduate or graduate students of California’s environment and curious naturalists.
| Author | : Robert C. Stebbins |
| Publisher | : Univ of California Press |
| Total Pages | : 553 |
| Release | : 2012-09-04 |
| Genre | : Nature |
| ISBN | : 0520949978 |
". . . encourage[s] hope and resilience in times of devastating damage."—New York Review of Books This user-friendly guide is the only complete resource that identifies and describes all the amphibians and reptiles—salamanders, frogs and toads, lizards, snakes, and tortoises and turtles—that live in California. The species are described in richly detailed accounts that include range maps, lifelike color paintings by Robert C. Stebbins, clear drawings of various life stages including eggs, notes on natural history, and conservation status. Easy-to-use keys for every order help identify species, and informative chapters cover more general topics including evolution, habitat loss, and photography. Throughout, anecdotes and observations reveal new insights into the lives of California’s abundant but often hidden amphibians and reptiles.
| Author | : |
| Publisher | : |
| Total Pages | : 302 |
| Release | : 1986 |
| Genre | : Biotic communities |
| ISBN | : |
| Author | : Michael Lannoo |
| Publisher | : Univ of California Press |
| Total Pages | : 1117 |
| Release | : 2005-06-15 |
| Genre | : Science |
| ISBN | : 0520929438 |
This benchmark volume documents in comprehensive detail a major environmental crisis: rapidly declining amphibian populations and the disturbing developmental problems that are increasingly prevalent within many amphibian species. Horror stories on this topic have been featured in the scientific and popular press over the past fifteen years, invariably asking what amphibian declines are telling us about the state of the environment. Are declines harbingers of devastated ecosystems or simply weird reflections of a peculiar amphibian world? This compendium—presenting new data, reviews of current literature, and comprehensive species accounts—reinforces what scientists have begun to suspect, that amphibians are a lens through which the state of the environment can be viewed more clearly. And, that the view is alarming and presages serious concerns for all life, including that of our own species. The first part of this work consists of more than fifty essays covering topics from the causes of declines to conservation, surveys and monitoring, and education. The second part consists of species accounts describing the life history and natural history of every known amphibian species in the United States.
