Download or read book Environmental Pollutants and Eggshell Thickness written by Harry M. Ohlendorf and published by . This book was released on 1979 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1972 and 1973 we collected 1,339 clutches of eggs of anhingas (Anhinga anhinga) and 17 species of waders (herons, egrets, bitterns, ibises, and storks). We analyzed the eggs for organochlorine residues and compared shell thickness of these eggs and others collected since 1946 (and now in museum collections) with shell thickness of eggs collected before the widespread use of organochlorine pesticides. Eggshells were significantly thinner in one or more regions for the post-1946 samples of anhinga, great blue heron, black-crowned night heron, and wood stork. We detected no significant change in the other species.
Download or read book Environmental Pollutants and Eggshell Thickness written by Harry M. Ohlendorf and published by . This book was released on 1979 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1972 and 1973 we collected 1,339 clutches of eggs of anhingas (Anhinga anhinga) and 17 species of waders (herons, egrets, bitterns, ibises, and storks). We analyzed the eggs for organochlorine residues and compared shell thickness of these eggs and others collected since 1946 (and now in museum collections) with shell thickness of eggs collected before the widespread use of organochlorine pesticides. Eggshells were significantly thinner in one or more regions for the post-1946 samples of anhinga, great blue heron, black-crowned night heron, and wood stork. We detected no significant change in the other species.
Download or read book Environmental Pollutants and Eggshell Thickness Anhingas and Wading Birds in the Eastern United States written by U.S. Fish and Wildlife Service and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Pollutants and Eggshell Thickness written by Harry M. Ohlendorf and published by . This book was released on 1979 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Pollutants and Eggshell Thickness written by Calvin M. Menzie and published by . This book was released on 1978 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Contaminants in Fish and Wildlife of the Lower Gila River Arizona written by and published by . This book was released on 1997 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological Knowledge and Environmental Problem Solving written by National Research Council and published by National Academies Press. This book was released on 1986-02-01 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores how the scientific tools of ecology can be used more effectively in dealing with a variety of complex environmental problems. Part I discusses the usefulness of such ecological knowledge as population dynamics and interactions, community ecology, life histories, and the impact of various materials and energy sources on the environment. Part II contains 13 original and instructive case studies pertaining to the biological side of environmental problems, which Nature described as "carefully chosen and extremely interesting."
Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1976 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estrogens in the Environment III written by and published by . This book was released on 1995 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reviews of Environmental Contamination and Toxicology Volume 235 written by David M. Whitacre and published by Springer. This book was released on 2014-11-06 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.
Download or read book Policies for Managing Urban Growth and Landscape Change written by and published by . This book was released on 2005 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Monitoring of Environmental Contaminants written by Yusaf Samiullah and published by . This book was released on 1990 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Toxicology written by John Timbrell and published by CRC Press. This book was released on 2023-02-27 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: As with the previous editions, Introduction to Toxicology, Fourth Edition, continues to chart the evolution of the field of toxicology, from the use of natural toxins by ancient tribes through the developments established by Paracelsus, and progresses through to the current topics in the public interest. For centuries, the study of toxicology has fascinated students. The book begins with basic toxicological principles, including an historical summary, dose-response relationships (NEW chapter), exposure-response relationships (NEW chapter), disposition, and metabolism of xenobiotic toxic substances. Other important new chapters include target organ toxicity, toxicity of carcinogenic agents and new and updated concepts in toxicity testing, and antidotes and treatment of poisonings. In all, nine new or expanded chapters from the third edition are advanced. Current concerns about the effects of therapeutic drugs, carcinogens, industrial toxins, pesticides, and herbicides on human health, animal welfare, and the stability and maintenance of the ecosystem continue to highlight toxicology as an important and growing scientific discipline. Key features: Comprehensive coverage of the field of toxicology which illustrates its importance to and impact on society Uses pertinent examples, tables, and diagrams to aid understanding with learning objectives, summaries, questions, and answers for each chapter Clearly and concisely written and presented concepts for easy comprehension by toxicology, biomedical, and health science students Examines the complex interactions associated with toxicological events Covers the effect of toxins on biological and physiological systems This book successfully condenses the diffuse literature in the field into an accessible and readable text, made easier with the insertion of many tables and figures. It introduces fundamental concepts and builds upon these using topical and relevant historical examples. Its improved format includes learning objectives and summaries of each chapter, as well as questions and answers suitable for self-assessment. This latest edition is an invaluable resource for undergraduate and graduate toxicology students, as well as an introductory text for other health care students and professionals. The book also functions as a comprehensive introductory reference text for environmental scientists, medical biologists and chemists, chemical engineers, and regulatory agencies, with interests in toxicologically related areas.
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Contaminants in Wildlife written by James P. Meador and published by CRC Press. This book was released on 1996-03-20 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many books have been written about the effects of toxic chemicals on wildlife, but none has focused on the practical question, "How much of a chemical in the tissues of an animal is harmful?" This book deals exclusively with that question. This comprehensive reference will certainly become the standard resource on the topic, offering authoritative and sound advice on many environmental contaminants. With chapters written by outstanding experts in their respective fields, this is not only a scholarly collection of discussions on different chemicals, but, for those who have the day-to-day task of evaluating the harm of environment contaminants to wildlife, this book will provide answers on, for example, how to interpret 1 ppm lead in the liver of a duck or fish. The authors explain the snags of interpreting data that are sometimes conflicting or insufficient, providing the reader with helpful advice on how to cope with such data. Each chapter reviews literature on a specific chemical, followed by a easy-to-understand summary providing technical guidance. For many years this book will remain the preeminent reference on how to interpret contaminant levels of organochlorine pesticides, PCBs, dioxins, PAHs, metals, selenium, and fluorides in wildlife.
Download or read book Ornithology written by Michael L. Morrison and published by Johns Hopkins University Press. This book was released on 2018-09-03 with total page 1017 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood, Robert M. Zink, Benjamin Zuckerberg
Download or read book Environmental Contaminants written by Jules M. Blais and published by Springer. This book was released on 2015-03-27 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: The human footprint on the global environment now touches every corner of the world. This book explores the myriad ways that environmental archives can be used to study the distribution and long-term trajectories of chemical contaminants. The volume first focuses on reviews that examine the integrity of the historic record, including factors related to hydrology, post-depositional diffusion, and mixing processes. This is followed by a series of chapters dealing with the diverse archives and methodologies available for long-term studies of environmental pollution, such as the use of sediments, ice cores, sclerochronology, and museum specimens.
