For centuries, the world’s largest marine herbivore, the green turtle, was exploited for eggs and meat until it teetered on the edge of extinction. Now, thanks to sustained conservation efforts, encouraging news has emerged for this megaherbivore: long-term nesting beach protection works.
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Since the “discovery” of French Guiana’s leatherbacks in the late 1960s, the country has been known to be the home of one of the largest leatherback nesting colonies in the world. Renowned turtle biologist Peter Pritchard shares a historical perspective on sea turtle research in the region.
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In a recent assessment, the Wider Caribbean Sea Turtle Conservation Network (WIDECAST) answered the question definitively.
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The Turtle Mother legend has remained amazingly consistent since I first heard it in 1973. In a war-torn community where rumors run rampant, consistency of any tale is unusual.
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The Andaman and Nicobar Islands are home to many indigenous communities who live traditional lifestyles of hunting, gathering, and small-scale cultivation. These islanders are exempt from the Indian Wildlife Protection Act and are allowed to use wildlife for sustenance, but not for sale.
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Late Cretaceous seas contained giant swimming marine reptiles, including sea turtles nearly 5 meters in length. Most went extinct with the dinosaurs — but not the sea turtles. Fossils prove sea turtles’ abundance in North America from the Gulf of Mexico to the Arctic Ocean during the Cretaceous period.
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Make a list of the world’s most endangered sea turtle populations. Is the eastern Pacific hawksbill on it? If not, it’s no surprise. Until recently, virtually nothing had been done to study what remains of these animals in the eastern Pacific, hunted nearly into extinction long before the start of the modern sea turtle conservation movement.
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The migration of one female leatherback turtle, from West Papua, Indonesia, to the coast of Oregon, United States, demonstrates the urgent need to understand where these creatures spend their lives at sea in order to mitigate human-induced threats.
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Molecular genetics offers a valuable set of tools for unraveling the mysteries and histories of many species. In the case hawksbills, genetic techniques have drastically improved our understanding of their biology and, in turn, have enhanced our ability to manage the species.
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In strange company with a few species of fish and nudibranchs, the hawksbill turtle is one of very few animals that feeds principally on sponges. It is the largest vertebrate and only reptile to feed on this prey. Spongivory, or feeding on sponges, is rare, presumably because of the significant defenses of sponges, such as siliceous (glass) spicules, indigestible spongin fibers, and an array of chemical compounds.
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