Download or read book Reproductive Parameters of Nesting Caretta Caretta on Georgia s Barrier Islands written by K. Kristina Drake and published by . This book was released on 2001 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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:
Download or read book Multiple Paternity of Caretta Caretta Within the Northwestern Atlantic Ocean Population on Wassaw Island GA written by Jacob Lasala and published by . This book was released on 2011 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: Author's abstract: Characterizing the mating system of a species is important for understanding demography and population dynamics and can contribute information to conservation efforts. Mating systems can impact the ecology, evolution, effective population size and genetic variability of a species. Polyandry, resulting in multiple paternity can influence the maintenance of genetic variation within a population. Within Testudines, the frequency of multiple paternity varies extensively among species (0-100% of nests). Previous studies on the loggerhead turtle (Caretta caretta) have shown that within the large management unit of peninsular Florida, multiple paternity occurs in approximately 30% of nests. This study examines nests from the smaller and more endangered northern management unit. The primary objectives of this study are to determine if multiple paternity exists in Georgia's smaller nesting population and determine if the percentage of nests with multiple fathers differs significantly from previous studies. Secondary objectives are to compare the incidence of multiple paternity over multiple years, determine if multiple paternity varies over the course of the nesting period. Our final objectives were to determine the relationship between the number of fathers per nest and female size (straight carapace length), as well as hatching success and to determine how many males are actually contributing to this nesting population. Mothers and offspring (up to 20) were initially sampled from more than 90 nests over three nesting seasons on Wassaw Island, GA (2008-2010). We found that multiple fathers contribute to 75% of nests over the three years. There is a difference in number of fathers per nest with relation to the year, but there is no relationship between the number of fathers per nest and the nesting period. There is a positive relationship between female size (SCL) and the number of fathers per nest. There is no relationship between the number of fathers contributing to a clutch and hatching success. Finally I found a total of 195 male genotypes over the course of the study, resulting in a sex ratio of 2.7 males per 1 nesting female. Every male genotype that I discovered only contributed to one nest over the three years samples, indicating there is a large number of males contributing to this nesting population.
Download or read book Proceedings of the Ninth Annual Workshop on Sea Turtle Conservation and Biology 7 11 February 1989 Jekyll Island Georgia written by Scott A. Eckert and published by . This book was released on 1989 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Biology of Sea Turtles Volume II written by Peter L. Lutz and published by CRC Press. This book was released on 2002-12-17 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: The success of the first volume of The Biology of Sea Turtles revealed a need for broad but comprehensive reviews of major recent advances in sea turtle biology. Biology of Sea Turtles, Volume II emphasizes practical aspects of biology that relate to sea turtle management and to changes in marine and coastal ecosystems. These topics i
Download or read book Oceanic Abstracts with Indexes written by and published by . This book was released on 1979 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Decline of the Sea Turtles written by National Research Council and published by National Academies Press. This book was released on 1990-02-01 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores in detail threats to the world's sea turtle population to provide sound, scientific conclusions on which dangers are greatest and how they can be addressed most effectively. Offering a fascinating and informative overview of five sea turtle species, the volume discusses sea turtles' feeding habits, preferred nesting areas, and migration routes; examines their status in U.S. waters; and cites examples of conservation measures under way and under consideration.
Download or read book Chelonian Conservation and Biology written by and published by . This book was released on 2001 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sea turtles in the Mediterranean Distribution threats and conservation priorities written by Paolo Casale and published by IUCN. This book was released on 2010 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 The Sea Turtles of South east Africa written by G. R. Hughes and published by . This book was released on 1974 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Management Techniques for the Conservation of Sea Turtles written by and published by . This book was released on 1999 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Conservation Physiology to Wildlife Fitness and Population Health written by Terri J. Maness and published by Frontiers Media SA. This book was released on with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the great challenges in ecophysiology is linking physiological measures in wild animal populations with changes in individual fitness. Physiological variables that indicate nutritional state, stress, disease, or injury are used extensively in veterinary practice and captive settings to assess the health and likelihood of reproductive success of many animals. The development and refinement of sampling methods that limit disturbance of animals, coupled with advancements in analytical methods have allowed researchers to begin to examine the relevance of these physiological parameters in wild animals for predicting population trends and response to environmental perturbations. However, despite extensive research in this field, consistent correlations between fitness and/or population health and physiological measures remain rare.
Download or read book Sea Turtle Research and Conservation written by Brad Nahill and published by Academic Press. This book was released on 2020-11-27 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sea Turtles: Field Research and Conservation is a comprehensive reference of experiences with sea turtle species from global experts. This book looks at the human side of protecting and studying these unique animals around the world, as well as the challenges involved, such as cultural differences and conducting research in remote locations.Led by a renowned expert in sea turtle conservation, this book addresses the largest issue facing sea turtle species currently; nearly all species of sea turtles are endangered due to poaching, fishing snares, climate change, and more. Chapters in this book range from the use of cutting-edge technology to learn more about this elusive reptile, to working with communities with long histories of sea turtle trade and consumption. It provides readers with firsthand accounts of sea turtle conservation efforts from conservationists based around the world and offers important suggestions and solutions for ensuring the future of these sea turtle species.Sea Turtles: Field Research and Conservation is the ideal resource for field biologist and marine conservationists, specifically those working in marine herpetology and with sea turtle species. Policymakers concerned with marine conservation, wildlife protection, and sustainable development, will also find this a useful reference for efforts and directions to enact change and save sea turtles from extinction. - Offers examples of groundbreaking technology to conduct noninvasive sea turtle research - Written by global experts working in the field to study and protect sea turtle species - Includes human-to-human case studies and advice for collaborating with cultures and communities to save these endangered animals
Download or read book Synopsis of Biological Data on the Hawksbill Turtle Eretmochelys Imbricata Linnaeus 1766 written by W. N. Witzell and published by Food & Agriculture Org.. This book was released on 1983 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Evolution and Extinction of the Dinosaurs written by David E. Fastovsky and published by Cambridge University Press. This book was released on 2005-02-07 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2005 edition of The Evolution and Extinction of the Dinosaurs is a unique, comprehensive treatment of this fascinating group of organisms. It is a detailed survey of dinosaur origins, their diversity, and their eventual extinction. The book can easily be used as a teaching textbook for a class, but it is also written as a series of readable, entertaining essays covering important and timely topics appealing to non-specialists and all dinosaur enthusiasts: birds as 'living dinosaurs', the new feathered dinosaurs from China, 'warm-bloodedness'. Along the way, the reader learns about dinosaur functional morphology, physiology, and systematics using cladistic methodology - in short, how professional paleontologists and dinosaur experts go about their work, and why they find it so rewarding. The book is spectacularly illustrated by John Sibbick, a world-famous illustrator of dinosaurs, commissioned exclusively for this book.
