The effect of incubation temperature on hatching success, incubation period, survivorship and sex ratio in Caiman latirostris (Crocodylia, Alligatoridae)

PIÑA, C.I.; LARRIERA, A.; CABRERA, M.R.

JOURNAL OF HERPETOLOGY

SSAR

Año: 2003 vol. 37 p. 199 - 202

0022-1511

Temperature-dependent sex-determination has been reported for all extant crocodilians. We present information about incubation temperature effects on incubation period, sex ratio, hatching success, and hatchling survivorship during the first year of life for Caiman latirostris. Incubation period was negatively related to temperature. Sex of hatchlings were related to incubation temperature. Only females were produced at 29°C and 31´C, only males were produced at 33´C, and both males and females hatched at 34.5°C. Hatching success and survivorship were unaffected by incubation temperature.