Differential effects of testosterone and progesterone on the activation and retention of courtship behavior in sexual and parthenogenetic whiptail lizards
Both testosterone (T) and progesterone (P) facilitate the expression of male-typical sexual
behavior in a variety of animals, including rodents and lizards. In two species of whiptail
lizards, Cnemidophorus inornatus and C. uniparens, both hormones elicit the full repertoire
of courtship behavior. However, the relative efficacy of the two hormones is unknown. In
Experiments 1 and 2 we assessed differences in capacity of exogenous T and P to induce
male-typical courtship behavior in gonadectomized whiptail lizards. In both species …
behavior in a variety of animals, including rodents and lizards. In two species of whiptail
lizards, Cnemidophorus inornatus and C. uniparens, both hormones elicit the full repertoire
of courtship behavior. However, the relative efficacy of the two hormones is unknown. In
Experiments 1 and 2 we assessed differences in capacity of exogenous T and P to induce
male-typical courtship behavior in gonadectomized whiptail lizards. In both species …
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