Eggs and hatchlings incur high mortality from various predators. Humans are the most important predators on adults. In the Seychelles Islands, egg survivorship was 0.86 (see Iverson 1991).
In the U.S. Virgin Islands (Buck Island Reef National Monument), the sex ratio of the juvenile population foraging on the reef was strongly biased toward females (Geis et al. 2003). Multiple nesting populations throughout the Caribbean evidently contributed to the sex ratio.
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