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Effects of incubation temperature on the size of Caiman latirostris (Crocodylia: Alligatoridae) at hatching and after one year

Pina, C. I., Larriera, A., Medina, M. and Webb, Grahame J. W. (2007). Effects of incubation temperature on the size of Caiman latirostris (Crocodylia: Alligatoridae) at hatching and after one year. Journal of Herpetology,41(2):205-210.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 9 times in Scopus Article | Citations

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Title Effects of incubation temperature on the size of Caiman latirostris (Crocodylia: Alligatoridae) at hatching and after one year
Author Pina, C. I.
Larriera, A.
Medina, M.
Webb, Grahame J. W.
Journal Name Journal of Herpetology
Publication Date 2007
Volume Number 41
Issue Number 2
ISSN 0022-1511   (check CDU catalogue  open catalogue search in new window)
Scopus ID 2-s2.0-34250902430
Start Page 205
End Page 210
Total Pages 6
Place of Publication St Souis, United States of America
Publisher Soc Study Amphibians and Reptiles
HERDC Category C1 - Journal Article (DEST)
Abstract We investigated the effects of incubation temperature (29 degrees C, 31 degrees C, and 33 degrees C) on total length (TL) and body mass (BM) of Caiman latirostris, a crocodilian with temperature-dependent sex determination (TSD), at hatching (N = 180) and in a sample of hatchlings (N = 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31 degrees C (100% females) were larger than at 29 degrees C (100% female) and 33 degrees C (100% males). Absolute growth to one year was higher for females (eggs incubated at 29 degrees C and 31 degrees C) than for males (eggs incubated at 33 degrees C). The possibility that constant 33 degrees C incubation temperature had compromised embryological development cannot be rejected. If so, it confirms that high incubation temperatures can have long-lasting effects on posthatching growth. If not, possible advantages of females growing more rapidly than males are discussed.
DOI http://dx.doi.org/10.1670/0022-1511(2007)41[205:EOITOT]2.0.CO;2   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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