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Reproductive seasonality and sexual dimorphism in green turtles

Godley, B.J., Broderick, A.C., Frauenstein, R., Glen, F. and Hays, G.C. 2002, Reproductive seasonality and sexual dimorphism in green turtles, Marine ecology progress series, vol. 226, pp. 125-133.

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Title Reproductive seasonality and sexual dimorphism in green turtles
Author(s) Godley, B.J.
Broderick, A.C.
Frauenstein, R.
Glen, F.
Hays, G.C.ORCID iD for Hays, G.C. orcid.org/0000-0002-3314-8189
Journal name Marine ecology progress series
Volume number 226
Start page 125
End page 133
Total pages 9
Publisher Inter-Research
Place of publication Oldendorf, Germany
Publication date 2002
ISSN 0171-8630
1616-1599
Keyword(s) Chelonia mydas
mating
breeding
Ascension Island
sea turtles
Atlantic
Summary The temporal distribution of nesting and mating in green turtles Chelonia mydas at Ascension Island (7°57¹S, 14°22¹W) in the South Atlantic is described. Mathematical description of the seasonal pattern of nesting showed extreme similarity between seasons, and evidence is presented to support the hypothesis that observed patterns are driven by prevailing environmental temperature. Mating was observed to begin before nesting and follow a pattern consistent with a modelled seasonal influx of suitable females into the annual breeding population. When available data on male size are compared with that of females from the same population (n = 12 populations), a pronounced and consistent sexual dimorphism, with males being smaller than females, is highlighted in all populations. The possible mechanisms behind the evolution of such a pattern are discussed.
Language eng
Field of Research 069999 Biological Sciences not elsewhere classified
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2002, Inter-Research
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30058244

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.