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Induction of Orange Head Coloration and Activation of Courtship and Aggression by Testosterone in the Male Broad-Headed Skink (Eumeces laticeps)
William E. Cooper, Jr., Mary T. Mendonca and Laurie J. Vitt
Journal of Herpetology
Vol. 21, No. 2 (Jun., 1987), pp. 96-101
Published by: Society for the Study of Amphibians and Reptiles
Stable URL: http://www.jstor.org/stable/1564469
Page Count: 6
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Male Eumeces laticeps develop bright orange head coloration during the spring breeding season, when they fight with other males and engage in sexual behavior with females. Outside the breeding season the head color fades and the sexual and agonistic behaviors cease. Intraperitoneal implantation of testosterone propionate in Silastic capsules restores the bright orange head coloration and activates courtship and agonistic behaviors in castrated males.
Journal of Herpetology © 1987 Society for the Study of Amphibians and Reptiles