Thermoregulation by a Population of Sceloporus palaciosi from Sierra del Ajusco, Distrito Federal, Mexico

摘要

We evaluated the influence of environmental temperature and phenotype on thermoregulation by Sceloporus palaciosi, a diurnal iguanid lizard from high elevations in central Mexico. Range of body temperature was 13--36 degree degree C with a mean of 27.82 plus or minus plus or minus 5.31 degree degree C. Active lizards had a higher body temperature than inactive ones. After removal of state of activity from analysis, sexes did not differ in body temperature. Body temperature was significantly correlated with temperature of air and substrate in both active and inactive lizards.