Incubation Temperature and Sex Ratio of the Veiled Chameleon (Chamaeleo calyptratus)

  title={Incubation Temperature and Sex Ratio of the Veiled Chameleon (Chamaeleo calyptratus)},
  author={Robin M Andrews},
  • R. Andrews
  • Published 1 September 2005
  • Environmental Science
Abstract Eggs from five clutches of Chamaeleo calyptratus were incubated at 25, 28, and 30°C during the period of sex determination. Sex ratios were slightly biased toward females at all temperatures but did not differ statistically from the expected 1:1 ratio of males and females. Egg survival was sufficiently high that sex-biased temperature-induced mortality cannot account for the lack of departure from 1:1 sex ratios. I conclude that the veiled chameleon has genetic sex determination (GSD… 
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