Proximate control of variation of clutch, egg, and body size in a West-Texas population of Uta stansburiana stejnegeri (Sauria : Iguanidae)

In a population of Uta stansburiana stejnegeri, in Crane Co., Texas, summer rainfall influenced prereproductive growth rate and two of three variables the following spring: (1) the sizes of adult females and (2) size of their first clutch but (3) not of their eggs or offspring in the first clutch. Some of the environmental effect on clutch size was indirectly due to the effect on body size. However, most (73%) of the variance of clutch size was independent of that of body