Abstract

The home ranges of two congeneric desert lizard species (Acanthodactylus schmidti and Acanthodactylus boskianus) were studied near Riyadh over two seasons. Male lizards had larger home ranges than females and, in general, spring home ranges were greater than winter home ranges. Overlap in home ranges was not uncommon and the extent of overlap varied greatly. The use of burrows by both species was similar but there was a difference in the use of habitats. For example, A. schmidti were often seen basking in open areas, but A. boskianus were rarely seen on bare sand away from vegetation.

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