Individual and sex differences in the use of the push-up display by the sagebrush lizard, Sceloporus graciosus

摘要: Abstract Repeatable differences among individuals or groups of within a population may be used to describe the existence alternative ‘strategies’ social roles in behaviour and constitute raw material on which phenotypic selection can act. Communicative displays that show consistent between sexes also as mechanisms for individual sexual recognition. In this study, sex several aspects push-up display were examined field study Sceloporus graciosus . Previous studies have looked primarily at specifics head-bob pattern adult male lizards captivity. This investigated other measures display, including frequency, perch height number legs flexed well pattern. It both female field. occurred all variables examined. These indicative home-range quality, motivational state, Differences head-bobs per duration, but not height, nor display. Sex suggest males females qualitatively different, possibly different purposes.