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Author : Paul R. Anderson
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (569 download)
Download or read book The Reproductive and Development History of the California Tiger Salamander written by Paul R. Anderson and published by . This book was released on 1968 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ivette Loredo-Prendeville
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (56 download)
Download or read book Reproductive Ecology, Microhabitat Use, and Migration Behavior of the California Tiger Salamander written by Ivette Loredo-Prendeville and published by . This book was released on 1995 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Gerrit van Hattem
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (718 download)
Download or read book Underground Ecology and Natural History of the California Tiger Salamander written by Michael Gerrit van Hattem and published by . This book was released on 2004 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert David Cooper
Publisher :
ISBN 13 :
Total Pages : 127 pages
Book Rating : 4.:/5 (129 download)
Download or read book The Ecology, Evolution, and Management of Recent Non-Native Hybridization of the Endangered California Tiger Salamander (Ambystoma Californiense) written by Robert David Cooper and published by . This book was released on 2021 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: The introduction of non-native species is a growing threat to biodiversity worldwide. Hybridization between invasive and endangered species severely complicates the management and conservation of threatened taxa. In these situations, it is necessary to understand the forces that drive hybrid success on the landscape in order to employ the most efficient and effective strategies to preserve native diversity. In this thesis, I present three studies that target specific aspects of hybridization between the endangered California tiger salamander (Ambystoma californiense) and the introduced barred tiger salamander (Ambystoma mavortium). In the first chapter, I use a Critical Thermal Maximum (CTMax) assay to show that hybrid salamanders can function at greater temperatures than either parental species. Complementary analysis of gene expression uncovered extensive transgressive segregation in F1 hybrids, which may explain this enhanced thermal ability. Increased temperature tolerance in hybrid salamanders may contribute to their success in California. The final two chapters evaluate a potential method for reducing the success of hybrid salamanders in the wild. Previous work has suggested that breeding pond duration (hydroperiod) may confer fitness differences between hybrid and native salamanders. In the second chapter I constructed an array of large, semi-natural experimental ponds to test the effect of hydroperiod on larval survival and mass at metamorphosis. I demonstrate that both hybrid and native larvae benefit from increased pond duration, though hybrids benefit substantially more from each additional day of pond duration. While there were no hydroperiod treatments where native larvae outperformed hybrids, shortened hydroperiods significantly reduced hybrid advantage. In the third chapter, I use data from Chapter 2 to modify a recently developed demographic model for CTS to estimate the effects that hydroperiod manipulation might have on population persistence and hybrid success. Through demographic simulations, I demonstrate that the short hydroperiod treatments do not support a stable CTS population, and do not increase population resistance to hybrid colonization. It appears that healthy native populations near their carrying capacity, supported by long hydroperiod ponds, represent the best tool for deterring hybrid expansion. Conversely, reducing the hydroperiod of primarily non-native ponds may reduce the success of hybrids, decreasing the proliferation of non-native genotypes. Managing non-native hybrids is a difficult, but important conservation priority given the increased performance of hybrids in both temperature tolerance and larval success. Integrative strategies that include targeted hydroperiod management may represent the best strategy for maintaining native CTS diversity in California.
Download or read book California Tiger Salamander written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 340 pages
Book Rating : 4.:/5 (321 download)
Download or read book Status and Trends Report on Wildlife of the San Francisco Estuary written by and published by . This book was released on 1990 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Evin Timothy Carter
Publisher :
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.:/5 (112 download)
Download or read book Life History and Contemporary Evolution written by Evin Timothy Carter and published by . This book was released on 2018 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predicting adaptive responses of populations is a primary goal of evolutionary ecology and conservation. While evolution on contemporary time scales is now apparent, the underlying mechanisms and whether change is adaptive or neutral often remain unclear. Typically, habitat modification, introduction of nonnative taxa, hybridization, or a combination of these factors is invoked to explain rapid evolution. I focus on an amphibian system of conservation concern to explore the interplay between ecology and evolution in shaping population genetic structure, including how habitat and physiology interact with life history to promote invasion success. I begin by using simulation to demonstrate that the mode and tempo of evolution is highly subject to interactions between genome structure and life history strategy. I show that incorporating high reproductive outputs characteristic of amphibians can increase the probability that selection and recombination result in highly fit multilocus genotypes, but complex life cycles characteristic of pond-breeding taxa can simultaneously increase the probability that low-fitness combinations drift rapidly to fixation, highlighting the possibility that rapid "adaptation" in small populations might sometimes be explained by drift. I then explore environment-dependent selection in a hybrid zone involving obligately-metamorphic California Tiger Salamanders (Ambystoma californiense) and nonnative Barred Tiger Salamanders (A. mavortium) having a more plastic facultatively-paedomorphic life history. I consider measures of physiological performance that are expected to affect amphibian population dynamics, evaluating whether metabolic and water loss rates are consistent with hybrid advantage or disadvantage (and transgressive segregation) under conditions experienced during key life history events. Alternating patterns of hybrid advantage linked to high energy demand and plastic life history result in bounded hybrid superiority and, as yet, a clear limit to the geographic spread of hybrid genotypes. Next, I show that recent abrupt declines in hybrid population success are likely associated with high energy demand alongside drought-induced reductions in resources, where many [facultatively paedomorphic] hybrid populations experienced pond-drying for the first time since their initial invasion. In contrast, obligately-metamorphic natives that evolved in a drought-prone landscape did not experience apparent declines. These results underscore integrating scientific disciplines as requisite to effective conservation science and invasion management.
Author : David O. Norris
Publisher : Academic Press
ISBN 13 : 0123964652
Total Pages : 599 pages
Book Rating : 4.1/5 (239 download)
Download or read book Vertebrate Endocrinology written by David O. Norris and published by Academic Press. This book was released on 2013-05-04 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vertebrate Endocrinology represents more than just a treatment of the endocrine system-it integrates hormones with other chemical bioregulatory agents not classically included with the endocrine system. It provides a complete overview of the endocrine system of vertebrates by first emphasizing the mammalian system as the basis of most terminology and understanding of endocrine mechanisms and then applies that to non-mammals. The serious reader will gain both an understanding of the intricate relationships among all of the body systems and their regulation by hormones and other bioregulators, but also a sense of their development through evolutionary time as well as the roles of hormones at different stages of an animal's life cycle. Includes new full color format includes over 450 full color, completely redrawn image Features a companion web site hosting all images from the book as PPT slides and .jpeg files Presents completedly updated and revitalized content with new chapters, such as Endocrine Disrupters and Behavioral Endocrinology Offers new clinical correlation vignettes throughout
Author : Robert C. Stebbins
Publisher : Univ of California Press
ISBN 13 : 0520331567
Total Pages : 633 pages
Book Rating : 4.5/5 (23 download)
Download or read book Amphibians of Western North America written by Robert C. Stebbins and published by Univ of California Press. This book was released on 2023-12-22 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1951. This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived
Author : Robert C. Stebbins
Publisher : Univ of California Press
ISBN 13 : 0520949978
Total Pages : 553 pages
Book Rating : 4.5/5 (29 download)
Download or read book Field Guide to Amphibians and Reptiles of California written by Robert C. Stebbins and published by Univ of California Press. This book was released on 2012-09-04 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: ". . . 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 : Marc Williams
Publisher : Elsevier
ISBN 13 : 0128004800
Total Pages : 725 pages
Book Rating : 4.1/5 (28 download)
Download or read book Wildlife Toxicity Assessments for Chemicals of Military Concern written by Marc Williams and published by Elsevier. This book was released on 2015-05-21 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wildlife Toxicity Assessments for Chemicals of Military Concern is a compendium of chemical-specific toxicity information with discussions on the rationale and development of Wildlife Toxicity Reference Values (TRVs) intended for use on terrestrial wildlife for risk assessment applications. Substances covered include military-related chemicals including explosives, propellants, pesticides and metals. Wildlife Toxicity Assessments for Chemicals of Military Concern is a much-needed resource designed to meet the needs of those seeking toxicological information for ecological risk assessment purposes. Each chapter targets a specific chemical and considers the current knowledge of the toxicological impacts of chemicals to terrestrial wildlife including mammalian, avian, amphibian and reptilian species. Provides detailed information on how Wildlife Toxicity Values (TRVs) for military chemicals of concern are derived and evaluated. Covers wildlife toxicity assessments of explosives, metals and environmental chemicals. Compiles relevant information on the environmental effects of chemicals on wildlife in relation to public and environmental health.
Author : Barrie G. M. Jamieson
Publisher : CRC Press
ISBN 13 : 1482294346
Total Pages : 636 pages
Book Rating : 4.4/5 (822 download)
Download or read book Reproductive Biology and Phylogeny of Urodela written by Barrie G. M. Jamieson and published by CRC Press. This book was released on 2003-01-05 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains original contributions from an international group of authors with the highest reputations in their respective areas of phylogenetic and reproductive studies on salamanders and newts. A full panoply of topics is covered, from morphology of gametes and reproductive systems to considerations of behavior and life history, all plac
Author : Matthew J. Gray
Publisher : Springer
ISBN 13 : 9783319137568
Total Pages : 246 pages
Book Rating : 4.1/5 (375 download)
Download or read book Ranaviruses written by Matthew J. Gray and published by Springer. This book was released on 2015-05-01 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book on ranaviruses. Ranaviruses are double-stranded DNA viruses that cause hemorrhagic disease in amphibians, reptiles, and fish. They have caused mass die-offs of ectothermic vertebrates in wild and captive populations around the globe. There is evidence that this pathogen is emerging and responsible for population declines in certain locations. Considering that amphibians and freshwater turtles are suitable hosts and the most imperiled vertebrate taxa in the world, ranaviruses can have significant impacts on biodiversity and ecosystem function. Additionally, many fish that are raised in aquaculture facilities and traded internationally are suitable hosts; thus, the potential economic impact of ranaviruses is significant. Ranaviruses also serve as a model for replication and gene function of large double-stranded DNA viruses. There is an urgent need to assemble the contemporary information on ranaviruses and provide guidance on how to assess their threats in populations. Through the Global Ranavirus Consortium, 24 experts from six countries were organize to write this volume, the first book on ranaviruses. The book begins with a discussion on the global extent of ranaviruses, case histories of infection and disease in ectothermic vertebrates, and current phylogeny. Basic principles of ranavirus ecology and evolution are covered next, with a focus on host-pathogen interactions and how the virus emerges in its environment. There are two chapters that will discuss the molecular biology of ranaviruses, host response to infection, and the genes responsible for immune system evasion. One chapter establishes standards for testing for infection and diagnosing ranaviral disease. The book ends by providing guidance on how to design ranavirus surveillance studies and analyze data to determine risk, and discussing the role of the Global Ranavirus Consortium in organizing research and outreach activities.
Author : Daniel Escoriza
Publisher : Academic Press
ISBN 13 : 0128158352
Total Pages : 350 pages
Book Rating : 4.1/5 (281 download)
Download or read book Amphibians of North Africa written by Daniel Escoriza and published by Academic Press. This book was released on 2019-03-16 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amphibians of North Africa is a comprehensive compilation of available data on the amphibians and reptiles found in various ecosystems across North West Africa and parts of the Mediterranean region. It is essential to identifying and understanding the ecological role of regional herpetofauna and its conservational importance. It examines the biological origins and diversity of amphibians in North Africa, along with their diverse ecosystems, including deserts, grasslands and subtropical forests. The book features detailed descriptions of the adult and larvae stages of species, such as the North African fire salamander, the common painted frog, Brongersma's toad and the Mediterranean tree frog. This book is a vital resource for herpetology and ecology students and researchers, helping them identify, understand and conserve these amphibians and reptiles in their various habitats across the North African and Mediterranean regions. Presents the only book on research and species recognition of North West African and Mediterranean amphibians and reptiles in all life phases Provides novel, iconographic material about little-known species Features helpful visuals, including ink-drawings, photographs of adult and larvae stages, habitat photographs and distributional maps
Author : Michael Lannoo
Publisher : Univ of California Press
ISBN 13 : 0520929438
Total Pages : 1117 pages
Book Rating : 4.5/5 (29 download)
Download or read book Amphibian Declines written by Michael Lannoo and published by Univ of California Press. This book was released on 2005-06-15 with total page 1117 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Robert C. Stebbins
Publisher : Princeton University Press
ISBN 13 : 9780691102511
Total Pages : 336 pages
Book Rating : 4.1/5 (25 download)
Download or read book A Natural History of Amphibians written by Robert C. Stebbins and published by Princeton University Press. This book was released on 1997-01-26 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amphibia, the animal group that includes frogs, toads, salamanders, and caecilians, contains more than 4,500 known living species and new ones are being discovered continuously. This book focuses on the natural history of amphibians worldwide, how interaction with their environment over time has affected their evolutionary processes and what factors will determine their destinies. 37 photos. 52 line illus.
Author : Robert Poulin
Publisher : Princeton University Press
ISBN 13 : 1400840805
Total Pages : 343 pages
Book Rating : 4.4/5 (8 download)
Download or read book Evolutionary Ecology of Parasites written by Robert Poulin and published by Princeton University Press. This book was released on 2011-06-27 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parasites have evolved independently in numerous animal lineages, and they now make up a considerable proportion of the biodiversity of life. Not only do they impact humans and other animals in fundamental ways, but in recent years they have become a powerful model system for the study of ecology and evolution, with practical applications in disease prevention. Here, in a thoroughly revised and updated edition of his influential earlier work, Robert Poulin provides an evolutionary ecologist's view of the biology of parasites. He sets forth a comprehensive synthesis of parasite evolutionary ecology, integrating information across scales from the features of individual parasites to the dynamics of parasite populations and the structuring of parasite communities. Evolutionary Ecology of Parasites presents an evolutionary framework for the study of parasite biology, combining theory with empirical examples for a broader understanding of why parasites are as they are and do what they do. An up-to-date synthesis of the field, the book is an ideal teaching tool for advanced courses on the subject. Pointing toward promising directions and setting a research agenda, it will also be an invaluable reference for researchers who seek to extend our knowledge of parasite ecology and evolution.
