Roles Of Corticosterone In The Development And Physiological Ecology Of Rana Pipiens Tadpoles And The Disruption Of This Endocrine System By Organochloriine Contamination
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Roles Of Corticosterone In The Development And Physiological Ecology Of Rana Pipiens Tadpoles And The Disruption Of This Endocrine System By Organochloriine Contamination
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Author : Karen Ann Glennemeier
language : en
Publisher:
Release Date : 2000
Roles Of Corticosterone In The Development And Physiological Ecology Of Rana Pipiens Tadpoles And The Disruption Of This Endocrine System By Organochloriine Contamination written by Karen Ann Glennemeier and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Amphibian Declines
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Author : Michael Lannoo
language : en
Publisher: Univ of California Press
Release Date : 2005-06-15
Amphibian Declines written by Michael Lannoo and has been published by Univ of California Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-06-15 with Science categories.
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.
Dissertation Abstracts International
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Author :
language : en
Publisher:
Release Date : 2001
Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Dissertations, Academic categories.
American Doctoral Dissertations
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Author :
language : en
Publisher:
Release Date : 2000
American Doctoral Dissertations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Dissertation abstracts categories.
Hormonally Active Agents In The Environment
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2000-02-03
Hormonally Active Agents In The Environment written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-02-03 with Science categories.
Some investigators have hypothesized that estrogens and other hormonally active agents found in the environment might be involved in breast cancer increases and sperm count declines in humans as well as deformities and reproductive problems seen in wildlife. This book looks in detail at the science behind the ominous prospect of "estrogen mimics" threatening health and well-being, from the level of ecosystems and populations to individual people and animals. The committee identifies research needs and offers specific recommendations to decision-makers. This authoritative volume: Critically evaluates the literature on hormonally active agents in the environment and identifies known and suspected toxicologic mechanisms and effects of fish, wildlife, and humans. Examines whether and how exposure to hormonally active agents occursâ€"in diet, in pharmaceuticals, from industrial releases into the environmentâ€"and why the debate centers on estrogens. Identifies significant uncertainties, limitations of knowledge, and weaknesses in the scientific literature. The book presents a wealth of information and investigates a wide range of examples across the spectrum of life that might be related to these agents.
Ecotoxicology Of Amphibians And Reptiles
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Author : Donald W. Sparling
language : en
Publisher: CRC Press
Release Date : 2010-06-02
Ecotoxicology Of Amphibians And Reptiles written by Donald W. Sparling and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-06-02 with Science categories.
Building on the success of its popular predecessor, the second edition of Ecotoxicology of Amphibians and Reptiles presents newly available findings on the species that are important environmental indicators. This new edition covers nearly twice as many topics as the first, including recent developments in the ecotoxicology of amphibians and reptil
Wildlife Ecotoxicology
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Author : John E. Elliott
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-08-27
Wildlife Ecotoxicology written by John E. Elliott and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-08-27 with Science categories.
Many books have now been published in the broad field of environmental toxicology. However, to date, none of have presented the often fascinating stories of the wildlife science, and the steps along the way from discovery of problems caused by environmental pollutants to the regulatory and non-regulatory efforts to address the problems. This book provides case by case examinations of how toxic chemical effects on wildlife have brought about policy and regulatory decisions, and positive changes in environmental conditions. Wild animal stories, whether they are about the disappearance of charismatic top predators, or of grossly deformed embryos or frogs, provide powerful symbols that can and have captured the public's imagination and have resulted in increased awareness by decision makers. It is the intent of this book to present factual and balanced overviews and summaries of the science and the subsequent regulatory processes that followed to effect change (or not). We cover a variety of chemicals and topics beginning with an update of the classic California coastal DDT story of eggshell thinning and avian reproduction to more recent cases, such as the veterinarian pharmaceutical that has brought three species of Asian vultures to the brink of extinction. Researchers, regulators, educators, NGOs and the general public will find valuable insights into the processes and mechanisms involved both in environmental scientific investigation and in efforts to effect positive change.
Extinction In Our Times
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Author : James P. Collins
language : en
Publisher: Oxford University Press
Release Date : 2009-07-07
Extinction In Our Times written by James P. Collins and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-07-07 with Science categories.
For over 350 million years, thousands of species of amphibians have lived on earth, but since the 1990s they have been disappearing at an alarming rate, in many cases quite suddenly and mysteriously. What is causing these extinctions? What role do human actions play in them? What do they tell us about the overall state of biodiversity on the planet? In Extinction in Our Times, James Collins and Martha Crump explore these pressing questions and many others as they document the first modern extinction event across an entire vertebrate class, using global examples that range from the Sierra Nevada of California to the rainforests of Costa Rica and the Mediterranean coast of North Africa. Joining scientific rigor and vivid storytelling, this book is the first to use amphibian decline as a lens through which to see more clearly the larger story of climate change, conservation of biodiversity, and a host of profoundly important ecological, evolutionary, ethical, philosophical, and sociological issues.
Herpetological Osteopathology
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Author : Bruce M. Rothschild
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-01-05
Herpetological Osteopathology written by Bruce M. Rothschild and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-05 with Science categories.
As scientific analysis of testable hypotheses has replaced the speculative approach to study of bone disease in recent and fossil amphibians and reptiles, the field has advanced from simply reporting observations to analyzing their implications. This process is predicated upon a reproducible data base which explains/diagnoses the nature of bony alterations and a secure review of the literature. Thereby hangs the rub. The herpetological literature are difficult to access (let alone read) and are scattered through many prominent and eclectic journals and in the lay literature. While older diagnoses often have not stood the test of time, the clarity of report descriptions usually allows confident identification of the underlying pathology.
Oecd Guidelines For The Testing Of Chemicals Section 2 Test No 231 Amphibian Metamorphosis Assay
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Author : OECD
language : en
Publisher: OECD Publishing
Release Date : 2009-09-08
Oecd Guidelines For The Testing Of Chemicals Section 2 Test No 231 Amphibian Metamorphosis Assay written by OECD and has been published by OECD Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-09-08 with categories.
This Test Guideline describes an amphibian metamorphosis assay intended to screen substances which may interfere with the normal functioning of the hypothalamo-pituitary-thyroid axis. The assay was validated with the species Xenopus laevis, which is ...