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

PIÑA, C.I.; LARRIERA, A.; MEDINA, M.; WEBB, G.J.W.

JOURNAL OF HERPETOLOGY

Año: 2007 vol. 41 p. 205 - 210

0022-1511

We investigated the effects of incubation temperature (29uC, 31uC, and 33uC) on total length (TL) and body mass (BM) of Caiman latirostris, a crocodilian with temperature-dependent sex determination (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% (TL) and body mass (BM) of Caiman latirostris, a crocodilian with temperature-dependent sex determination (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% (TL) and body mass (BM) of Caiman latirostris, a crocodilian with temperature-dependent sex determination (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% uC, 31uC, and 33uC) on total length (TL) and body mass (BM) of Caiman latirostris, a crocodilian with temperature-dependent sex determination (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% Caiman latirostris, a crocodilian with temperature-dependent sex determination (TSD), at hatching (N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100% N 5 180) and in a sample of hatchlings (N 5 40) after one year of raising. Size at hatching was strongly clutch-specific. Animals incubated at 31uC (100% females) were larger than at 29uC (100%uC (100% females) were larger than at 29uC (100% female) and 33uC (100% males). Absolute growth to one year was higher for females (eggs incubated at 29uC and 31uC) than for males (eggs incubated at 33uC). The possibility that constant 33uC 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. 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. 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. and 31uC) than for males (eggs incubated at 33uC). The possibility that constant 33uC 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. 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. 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. and 31uC) than for males (eggs incubated at 33uC). The possibility that constant 33uC 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. 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. 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. uC (100% males). Absolute growth to one year was higher for females (eggs incubated at 29uC and 31uC) than for males (eggs incubated at 33uC). The possibility that constant 33uC 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. 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. 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. uC) than for males (eggs incubated at 33uC). The possibility that constant 33uC 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.