Sea Turtles of the Eastern Pacific - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Sea Turtles of the Eastern Pacific write by Jeffrey A. Seminoff. This book was released on 2021-11-09. Sea Turtles of the Eastern Pacific available in PDF, EPUB and Kindle. Sea turtles are flagship species for the world's oceans. They traverse international boundaries during their migrations, serve as vehicles for marine nutrients to terrestrial habitats, and embody the often tenuous relationship between human action and ecosystem health. The East Pacific Ocean is home to some of the most dynamic marine ecosystems, and the most unique sea turtles. Marine biodiversity within this massive ocean region abounds in mangrove estuaries, seagrass pastures, coral reefs, the open ocean, and many other habitats, with sea turtles often the most conspicuous species present. The distinctive traits of the Eastern Pacific have resulted in the smallest leatherbacks, a singular morph of the green turtle, dark and steeply domed olive ridleys, and the most cryptic hawksbills on the planet. Only now are we beginning to understand how these varieties have evolved. However, the oceanographic conditions that make this an epicenter of sea turtle activity also promote massive artisanal and industrial fishing efforts that, coupled with illegal harvesting of eggs and turtles, have led to declines of several turtle populations in the region. The essays and stories in Sea Turtles of the Eastern Pacific describe for the first time the history of this exploitation, as well as recent sea turtle conservation initiatives and scientific research in the region. The first third of the book considers the biology of the turtles, focusing on general overviews of current ecological management challenges facing the turtles' survival. The second third treats issues of marine policy related to turtle conservation. In conclusion, the book offers six compelling stories of conservation success. By the end, readers will have gained a in-depth view not only of these magnificent creatures, but also the people involved in research and conservation efforts in one of the most remarkable regions of our planet.
The Leatherback Turtle
The Leatherback Turtle - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Leatherback Turtle write by James R. Spotila. This book was released on 2015-10-30. The Leatherback Turtle available in PDF, EPUB and Kindle. 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.
The Biology and Population Status of Marine Turtles in the North Pacific Ocean
The Biology and Population Status of Marine Turtles in the North Pacific Ocean - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Biology and Population Status of Marine Turtles in the North Pacific Ocean write by Karen L. Eckert. This book was released on 1993. The Biology and Population Status of Marine Turtles in the North Pacific Ocean available in PDF, EPUB and Kindle.
Spatial Ecology of Hawksbill Turtles (Eretmochelys Imbricata) in the Eastern Pacific Ocean
Spatial Ecology of Hawksbill Turtles (Eretmochelys Imbricata) in the Eastern Pacific Ocean - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Spatial Ecology of Hawksbill Turtles (Eretmochelys Imbricata) in the Eastern Pacific Ocean write by . This book was released on 2011. Spatial Ecology of Hawksbill Turtles (Eretmochelys Imbricata) in the Eastern Pacific Ocean available in PDF, EPUB and Kindle. Elucidating spatio-temporal movements of organisms is an integral component of wildlife management and life-history characterization. In the case of hawksbill turtles (Eretmochelys imbricata), adults have typically been described as coral reef dwellers, with females undertaking long post-nesting migrations. Until recently, hawksbills were thought to have been functionally extirpated in the eastern Pacific Ocean, a perspective changed by the identification of several substantial nesting rookeries. These discoveries provided new opportunities for research and conservation. Here we report on a region-wide satellite telemetry effort that has tracked thirteen adult female hawksbills in the eastern Pacific. In contrast to patterns of habitat use around coral reefs exhibited by their Caribbean conspecifics, the majority of hawksbills in the eastern Pacific occupied home ranges in mangrove estuaries. Post-nesting migrations for all turtles were relatively short (range = 18.1 km - 283.1 km) for the taxon, with several individuals remaining in local habitats after nesting. Also in contrast to previous research, dive computers indicated that adult hawksbills dove to and spent the majority of their time in the top 10 meters of the water column. Our findings suggest that common perceptions of hawksbill habitat use, dive behavior and migrations, largely Caribbean-based, have overlooked some key characteristics of this species displayed by other populations. Moreover, the consistent use of mangrove habitats, use of superficial waters and non-migratory behaviors represent a new life-history paradigm for the species and may explain why hawksbills went virtually undetected in the eastern Pacific for decades. From a conservation standpoint, the spatially restricted, shallow and neritic life cycles of hawksbills in the eastern Pacific present both threats to and conservation opportunities for the species. Although a large proportion (>60%) of turtle location points fell within protected areas, many of these sites lack enforcement and monitoring. Our results underscore the importance of strengthening protected area management, mangrove conservation and hawksbill research and conservation in the eastern Pacific. Furthermore, our findings highlight the variability in life-history strategies that sea turtles and other longlived marine wildlife may exhibit among ocean regions.
Recovery Plan for U.S. Pacific Populations of the East Pacific Green Turtle (Chelonia Mydas)
Recovery Plan for U.S. Pacific Populations of the East Pacific Green Turtle (Chelonia Mydas) - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Recovery Plan for U.S. Pacific Populations of the East Pacific Green Turtle (Chelonia Mydas) write by Pacific Sea Turtle Recovery Team (U.S.). This book was released on 1998. Recovery Plan for U.S. Pacific Populations of the East Pacific Green Turtle (Chelonia Mydas) available in PDF, EPUB and Kindle.
