Abstract
The thermal ecology of the striped plateau lizard, Sceloporus virgatus, was studied in the Chiricahua Mountains of southeastern Arizona. Body temperatures averaged 33.4 C (range 14.2-39.3), and air temperatures at the site of capture averaged 24.8 C (range 9.0-34.8). The slope of the regression of body temperature on air temperature was 0.40. Body temperatures did not differ for lizards caught in winter (October to April) and summer (May to September). Individuals using different substrates had different body temperatures, but air temperatures at the site of capture were not different. While males and females maintained the same body temperatures gravid females had lower body temperatures than non-gravid females. Sceloporus virgatus individuals maintain lower body temperatures than did sympatric individual Urosaurus ornatus despite the fact that their mean air temperatures at the site of capture did not differ significantly
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