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Asynchronous emergence by loggerhead turtle (Caretta caretta) hatchlings
For many decades it has been accepted that marine turtle hatchlings from the same nest generally emerge from the sand together. However, for loggerhead turtles (Caretta caretta) nesting on the Greek Island of Kefalonia, a more asynchronous pattern of emergence has been documented. By placing temperature loggers at the top and bottom of nests laid on Kefalonia during 1998, we examined whether this asynchronous emergence was related to the thermal conditions within nests. Pronounced thermal variation existed not only between, but also within, individual nests. These within-nest temperature differences were related to the patterns of hatchling emergence, with hatchlings from nests displaying large thermal ranges emerging over a longer time-scale than those characterised by more uniform temperatures.
History
Journal
NaturwissenschaftenVolume
88Issue
3Pagination
133 - 136Publisher
SpringerLocation
Berlin, GermanyPublisher DOI
ISSN
0028-1042eISSN
1432-1904Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2001, SpringerUsage metrics
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