Download or read book The Zoological Record written by and published by . This book was released on 1870 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Alien Reptiles and Amphibians written by Fred Kraus and published by Springer Science & Business Media. This book was released on 2008-12-19 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transportation of species to areas outside their native ranges has been a feature of human culture for millennia. During this time such activities have largely been viewed as beneficial or inconsequential. However, it has become increasingly clear that human-caused introductions of alien biota are an ecological disruption whose consequences rival those of better-known insults like chemical pollution, habitat loss, and climate change. Indeed, the irreversible nature of most alien-species int- ductions makes them less prone to correction than many other ecological problems. Current reshuffling of species ranges is so great that the present era has been referred to by some as the “Homogocene” in an effort to reflect the unique mag- tude of the changes being made. These alien interlopers often cause considerable ecological and economic d- age where introduced. Species extinctions, food-web disruptions, community alte- tions, ecosystem conversion, changes in nutrient cycling, fisheries collapse, watershed degradation, agricultural loss, building damage, and disease epidemics are among the destructive – and frequently unpredictable – ecological and economic effects that invasive alien species can inflict. The magnitude of these damages c- tinues to grow, with virtually all environments heavily used by humans now do- nated by alien species and many “natural” areas becoming increasingly prone to alien invasion as well. Attention to this problem has increased in the past decade or so, and efforts to prevent or limit further harm are gaining wider scientific and political acceptance.

Download or read book The Conservation Biology of Tortoises written by IUCN/SSC Tortoise and Freshwater Turtle Specialist Group and published by IUCN. This book was released on 1989 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intersexuality in the Animal Kingdom written by R. Reinboth and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: When Richard Goldschmidt' coined the term "intersexuality" in 1915, he intended it to apply to normally dioecious species which exhibit some kind of mixture between male and female characters. However, as knowledge of the bewildering variability present in the sexual orga nization of members of the animal kingdom has increased, the original meaning of the word has changed. Today many authors define inter sexuality as "the presence of both male and female characteristics, or of intermediate sexual characteristics, in a single individual".2 This more extensive and widely accepted concept justifies the title of our book •. Among all the anatomical and physiological features of living organisms the reproductive system has a unique importance for the perpetuation of the species. Conversely, reproductive processes are of little or no account for the viability of the individual. Therefore, within the framework of general biology reproduction has all too often been looked at solely from the point of view of genetics. Lively discussions about genotypic versus phenotypic sex determination long dominated the sci entific literature on sexuality in animals; this one-sided emphasis has tended to obscure many important facets of an organism's ability to reproduce. Recent developments in current biological research have brought the classic problem of sex differentiation into focus again, and the rapid progress being made in comparative endocrinology has added a new di mension to the study of reproductive biology.

Download or read book Turtles of the World Annotated Checklist and Atlas of Taxonomy Synonymy Distribution and Conservation Status 9th Ed written by Turtle Taxonomy Working Group and published by . This book was released on 2021-12-30 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biodiversity Hotspots written by Frank E. Zachos and published by Springer Science & Business Media. This book was released on 2011-09-15 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biodiversity and its conservation are among the main global topics in science and politics and perhaps the major challenge for the present and coming generations. This book written by international experts from different disciplines comprises general chapters on diversity and its measurement, human impacts on biodiversity hotspots on a global scale, human diversity itself and various geographic regions exhibiting high levels of diversity. The areas covered range from genetics and taxonomy to evolutionary biology, biogeography and the social sciences. In addition to the classic hotspots in the tropics, the book also highlights various other ecosystems harbouring unique species communities including coral reefs and the Southern Ocean. The approach taken considers, but is not limited to, the original hotspot definition sensu stricto and presents a chapter introducing the 35th hotspot, the forests of East Australia. While, due to a bias in data availability, the majority of contributions on particular taxa deal with vertebrates and plants, some also deal with the less-studied invertebrates. This book will be essential reading for anyone involved with biodiversity, particularly researchers and practitioners in the fields of conservation biology, ecology and evolution.

Download or read book Medicine and Surgery of Tortoises and Turtles written by Stuart McArthur and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medicine and Surgery of Tortoises and Turtles is an innovative and exciting new reference book on the management of chelonians. Covering everything from species identification to virus isolation techniques, it is an indispensable source of information for veterinary practitioners treating sick or injured chelonians and all those involved in captive chelonian care, chelonian conservation medicine, and scientific research. Written by leading chelonian veterinarians from around the world, this definitive book includes: Detailed sections on anatomy, physiology, husbandry, nutrition, diagnosis, diseases, anaesthesia, surgery, therapeutics and conservation. Over 1000 full-colour photographs, which take the reader through disease recognition, practical nursing, captive husbandry and common surgical conditions. Down-to-earth clinical information presented in a user-friendly format. Medicine and Surgery of Tortoises and Turtles is both a step-by-step photographic guide and a detailed source of clinical and scientific data. As well as this, it contains fascinating material that has never been published before, ensuring that it will become the primary chelonian reference book.

Download or read book The Leatherback Turtle written by James R. Spotila and published by JHU Press. This book was released on 2015-10-30 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive book ever written on leatherback sea turtles. Weighing as much as 2,000 pounds and reaching lengths of over seven feet, leatherback turtles are the world’s largest reptile. These unusual sea turtles have a thick, pliable shell that helps them to withstand great depths—they can swim more than one thousand meters below the surface in search of food. And what food source sustains these goliaths? Their diet consists almost exclusively of jellyfish, a meal they crisscross the oceans to find. Leatherbacks have been declining in recent decades, and some predict they will be gone by the end of this century. Why? Because of two primary factors: human redevelopment of nesting beaches and commercial fishing. There are only twenty-nine index beaches in the world where these turtles nest, and there is immense pressure to develop most of them into homes or resorts. At the same time, longline and gill net fisheries continue to overwhelm waters frequented by leatherbacks. In The Leatherback Turtle, James R. Spotila and Pilar Santidrián Tomillo bring together the world’s leading experts to produce a volume that reveals the biology of the leatherback while putting a spotlight on the conservation problems and solutions related to the species. The book leaves us with options: embark on the conservation strategy laid out within its pages and save one of nature’s most splendid creations, or watch yet another magnificent species disappear.

Download or read book New Directions in Conservation Medicine written by A. Alonso Aguirre and published by OUP USA. This book was released on 2012-06-08 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Directions of Conservation Medicine: Applied Cases of Ecological Health covers topics from emerging diseases and toxicants to the EcoHealth/One Health explosion. It challenges the notion that human health is an isolated concern removed from the bounds of ecology and species interactions.

Download or read book A Revised Checklist with Distribution Maps of the Turtles of the World written by John B. Iverson and published by . This book was released on 1992-01-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Temperature Dependent Sex Determination in Vertebrates written by Nicole Valenzuela and published by Smithsonian Institution Scholarly Press. This book was released on 2004 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by the world's foremost authorities on the subject, with essays by leading scholars in the field, this work shows how the sex of reptiles and many fish is determined not by the chromosomes they inherit but by the temperature at which incubation takes place.

Download or read book Turtles of the World written by Franck Bonin and published by JHU Press. This book was released on 2006 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Food Provisioning in Complex Societies written by Levent Atici and published by University Press of Colorado. This book was released on 2023-03-15 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through creative combinations of ethnohistoric evidence, iconography, and contextual analysis of faunal remains, this work offers new insight into the mechanisms involved in food provisioning for complex societies. Contributors combine zooarchaeological and historical data from global case studies to analyze patterns in centralization and bureaucratic control, asymmetrical access and inequalities, and production-distribution-consumption dynamics of urban food provisioning and animal management. Taking a global perspective and including both prehistoric and historic case studies, the chapters in the volume reflect some of the current best practices in the zooarchaeology of complex societies. Embedding faunal evidence within a broader anthropological explanatory framework and integrating archaeological contexts, historic texts, iconography, and ethnohistorical sources, the book discerns myriad ways that animals are key contributors to, and cocreators of, complex societies in all periods and all places. Chapters cover the diverse sociopolitical and economic roles wild animals played in Bronze Age Turkey; the production and consumption of animal products in medieval Ireland; the importance of belief systems, politics, and cosmologies in Shang Dynasty animal provisioning in the Yellow River Valley; the significance of external trade routes in the kingdom of Aksum (modern Sudan); hunting and animal husbandry at El Zotz; animal economies from two Mississippian period sites; and more. Food Provisioning in Complex Societies provides an optimistic roadmap and heuristic tools to explore the diverse, resilient, and contingent processes involved in food provisioning. The book represents a novel and productive way forward for understanding the unique, yet predictably structured, provisioning systems that emerged in the context of complex societies in all parts of the world. It will be of interest to zooarchaeologists and archaeologists alike. Contributors: Joaquin Arroyo-Cabrales, Fiona Beglane, Roderick Campbell, Kathryn Grossman, Patricia Martinez-Lira, Jacqueline S. Meier, Sarah E. Newman, Terry O'Connor, Tanya M. Peres, Gypsy C. Price, Elizabeth J. Reitz, Kim Shelton, Marcus Winter, Helina S. Woldekiros

Download or read book Infectious Diseases and Pathology of Reptiles written by Elliott R. Jacobson and published by CRC Press. This book was released on 2007-04-11 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: Far from the line drawings and black-and-white photos of the past, Infectious Diseases and Pathology of Reptiles features high-quality, color photos of normal anatomy and histology, as well as gross, light, and electron microscopic images of pathogens and diseases. Many of these images have never before been published, and come directly from

Download or read book Applied Genetics of Leguminosae Biotechnology written by Pawan K. Jaiwal and published by Springer Science & Business Media. This book was released on 2003 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Legumes include many very important crop plants that contribute very critical protein to the diets of both humans and animals around the world. Their unique ability to fix atmospheric nitrogen in association with Rhizobia enriches soil fertility, and establishes the importance of their niche in agriculture. Divided into two volumes, this work presents an up-to-date analysis of in vitro and recombinant DNA technologies for the improvement of grain, forage and tree legumes. Volume 10B presents the current state and future prospects of in vitro regeneration and genetic transformation expression and stability of transgenes modification of traits in almost all the important legumes, for example: soybean; peanut; pea; french bean; chick pea; pigeon pea; cowpea; mung bean; black gram; azuki bean; lentil; Lathyrus; lupinus; Lotus spp; Medicago spp; Trifolium spp; Winged bean; Guar; and tree legumes for their improvement.

Download or read book Gharial Conservation in Nepal written by Tirtha Man Maskey and published by . This book was released on 2008 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Twenty second Annual Symposium on Sea Turtle Biology and Conservation written by Jeffrey Aleksandr Seminoff and published by . This book was released on 2003 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: