Temperature and the life-history strategies of sea turtles |
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Authors: | John Davenport |
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Affiliation: | University Marine Biological Station Millport, Isle of Cumbrae, Scotland, KA28 OEG, U.K. |
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Abstract: | - 1. 1. Sea turtles have a high fecundity, high mortality, great longevity life history strategy.
- 2. 2. With the exception of the leatherback, turtle distribution is constrained by the 20°C surface isotherm.
- 3. 3. All sea turtles exhibit temperature-dependent sex determination (TSD) with pivotal temperatures close to 29°C.
- 4. 4. It is suggested that hatchling sex ratio will vary chaotically because of TSD.
- 5. 5. Because of TSD and natal homing, sea turtles are likely to be adversely affected by global warming.
- 6. 6. TSD and global warming have implications for conservation/management of sea turtles.
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Keywords: | Sea turtles temperature temperature-dependent sex determination chaos global warming |
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