Male sex steroids and hormonal control of male courtship behavior in the yellow-bellied slider turtle, Trachemys scripta
- Survey of androgens and estrogens in serum, liver and testes of male yellow-bellied slider turtles, Trachemys (= Pseudemys) scripta, a species exhibiting dissociated gametogenesis age-dependent melanism, revealed the presence of numerous androgen precursors, androgens, androgen metabolites, and estrogens in quantities varying with season, tissue, and male coloration.
- The most commonly found and abundant androgens in all males were dehydroepiandrosterone (DHEA) and androstenedione, which were present at significantly higher levels in testes than in serum or liver.
- Epitestosterone was found in the serum and liver of only melanistic males; testosterone was only rarely recovered.
- Behavioral testing of castrated male turtles implanted with various androgens, as well as intact and sham-operated controls, revealed that melanistic males courted more frequently than nonmelanistic males, and that exogenous testosterone was most effective in inducing courtship behavior in castrated males.
Additional publication details
|Publication Subtype||Journal Article|
|Title||Male sex steroids and hormonal control of male courtship behavior in the yellow-bellied slider turtle, Trachemys scripta|
|Series title||Comparative Biochemistry and Physiology, Part A: Molecular & Integrative Physiology|
|Contributing office(s)||Western Ecological Research Center|