Sea Turtles

Sea Turtles PDF

Author: Blair E. Witherington

Publisher: Voyageur Press (MN)

Published: 2006

Total Pages: 144

ISBN-13: 0760326444

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Streamlined and equipped with flippers, sea turtles seem uniquely adapted for water-yet remain firmly attached to land, where the females lay their eggs each year. They sport the many colors of the rainbow, range in weight from 100 to 1,300 pounds, and figure in the mythology and folklore of cultures around the world. And still, they currently risk extinction. In this book, marine biologist Blair Ernest Witherington, who has devoted decades to these ancient creatures, offers readers an in-depth look into their mysterious world. Accompanied by exquisite photographs, his descriptions comprise a personal introduction to these strangely graceful marine reptiles. Detailed, lively, and up-to-date imagery tells the story of sea turtles’ distant origins, their specialized form and undersea challenges, senses and life cycle, world voyages and navigational talents—and their ecological roles. The most comprehensive overview of sea turtles to date, this book portrays each of the seven species in close-up, offering information on appearance, distribution, movements, life history, reproduction, diet, unique traits, and conservation.

Biology and Conservation of Ridley Sea Turtles

Biology and Conservation of Ridley Sea Turtles PDF

Author: Pamela T. Plotkin

Publisher: JHU Press

Published: 2007-03

Total Pages: 382

ISBN-13: 9780801886119

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Here Plotkin and her colleagues reveal the nature of these species and the steps needed to make sure they remain a permanent part of the marine environment.

The Leatherback Turtle

The Leatherback Turtle PDF

Author: James R. Spotila

Publisher: JHU Press

Published: 2015-10-30

Total Pages: 246

ISBN-13: 142141709X

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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.

Sea Turtles of the Atlantic and Gulf Coasts of the United States

Sea Turtles of the Atlantic and Gulf Coasts of the United States PDF

Author: Carol Ruckdeschel

Publisher: University of Georgia Press

Published: 2012-03-15

Total Pages: 151

ISBN-13: 082034446X

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Written by two of the Southeast's foremost authorities on sea turtle conservation, this is an accessible, fully illustrated guide to the species that frequent the Atlantic and Gulf Coasts of the United States. No one who encounters a sea turtle soon forgets it. The leatherback, for instance, can grow to huge proportions, commonly approaching eight feet in length and more than half a ton in weight. Powerful swimmers, they are also among the deepest divers of all air-breathing sea creatures. Despite these assets, the survival of the leatherback, like that of all sea turtle species, is under constant threat from commercial fishing operations, overdevelopment of nesting grounds, pollution, and predation by introduced species. The guide opens with comprehensive coverage of the sea turtle's evolution, juvenile and adult life cycles, nesting, diet and feeding, disease and parasites, predators, and conservation issues. Each subsequent chapter is dedicated to a particular turtle species: loggerhead, leatherback, Kemp's ridley, green sea turtle, hawksbill, and olive ridley. The account of each species describes distribution, habitats, general appearance, life history and behavior, and conservation. For each species, photographs of hatchlings and adults and a map showing distribution and migration provide further information. Sea turtles have been swimming the seas for one hundred million years. Yet all of the species in this book—indeed, all sea turtles worldwide—are on U.S. and international endangered lists. Biologists Carol Ruckdeschel and C. Robert Shoop have dedicated their careers to learning about sea turtles—and to ensuring that we understand that we are stakeholders in the fate of these ancient creatures. With this guide in hand, readers will be better equipped to understand sea turtle biology and support sea turtle conservation efforts.

Sea Turtles

Sea Turtles PDF

Author: James R. Spotila

Publisher: JHU Press

Published: 2004-11-12

Total Pages: 254

ISBN-13: 0801880076

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Marine biologist James R. Spotila has spent much of his life unraveling the mysteries of these graceful creatures and working to ensure their survival. In "Sea Turtles," he offers a comprehensive and compelling account of their history and life cycle based on the most recent scientific data and suggests what we can be done to save them. Illustrated with stunning, full-color photographs. 0-808-8007-6$24.95 / Johns Hopkins University Press