Geographic Variation in Ovarian Cycles and Clutch Size in <i>Cnemidophorus tigris</i> (Teildae)

Abstract

Ovarian cycles and individual reproductive potentials of Cnemidophorus tigris in Colorado and Texas were studied by counts and measurements of yolked ovarian follicles, corpora lutea, and oviducal eggs. Colorado lizards lay one clutch averaging 3.4 eggs annually between May and August; Texas lizards average two clutches, each averaging 2.2 eggs, between April and mid-August.