干旱区生态环境知识资源中心

We examined the diet and sexual dimorphism of the desert iguana, Dipsosaurus dorsalis, from Sonora, Mexico. The diet consisted promarily of vegetation, with insect material contributing little to the overall volume of the diet. Plant matter was restricted to leaves and seeds. Animal prey consisted mostly of ants, termites, and beetles. Males and females did not differ significantly in snout-vent length, head length, or head width. These results confirm that in general S. drosalis is herbivorous and not sexually dimorphic through much of its range.