Space use patterns can help interpret social structure, and can also indicate habitat preferences. Meroles cuneirostris, a diurnal lacertid endemic to the west-central coast of Namibia, occupies an ecotone consisting of sparsely vegetated sand dunes and an interdune gravel plain. The habitat varies in both prey availability, with termites common in the gravel plain but rare in the dunes, as well as in predator avoidance options; lizards can easily bury themselves in sand or escape into bushes in the dunes but the coarse, packed sand and dearth of large shrubs precludes these strategies in the gravel plain.