|SREL Reprint #1143|
of Orange Head Coloration and Activation of Courtship and Aggression by
Testosterone in the Male Broad-headed Skink (Eumeces laticeps)
E. Cooper, Jr., Mary T. Mendonca, and Laurie J. Vitt
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 behavior cease. Intraperitoneal implantation of testosterone propionate in
Silastic capsules restores the bright orange head coloration and activates
courtship and agonistic behaviors in castrated males.
SREL Reprint #1143
Cooper, W.E., M.T. Mendonca, and L.J. Vitt. 1987.
Induction of orange head coloration and activation of courtship
and aggression by testosterone in the male broad headed skink (Eumeces laticeps). Journal of Herpetology 21:96-101.