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Migratory Routes PowerPoint Presentation
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Migratory Routes

Migratory Routes

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Migratory Routes

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  1. Migratory Routes Migration habits differ not only among species but also among different populations of the same species. Some sea turtle populations nest and feed in the same general areas; others migrate great distances. Loggerheads leave foraging areas and travel on breeding migrations that range from a few to thousands of kilometres (1 kilometre = 0.62 miles). Endangered Species The loggerhead turtle was listed as threatened throughout its range on July 28, 1978 and its status has not changedLoggerhead populations in Honduras, Mexico, Colombia, Israel, Turkey, Bahamas, Cuba, Greece, Japan, and Panama have been declining. This decline continues and is primarily attributed to shrimp trawling, coastal development, increased human use of nesting beaches, and pollution. Loggerheads are the most abundant species in U.S. coastal waters, and are often captured incidental to shrimp trawling. Natural predators include fishes, dogs, seabirds, raccoons and ghost crabs which eat 90% of hatchlings.Shrimping is thought to have played a significant role in the population declines observed for the loggerhead.