Their fieldwork concentrates on the ecological factors affecting reptiles, most notably the Tupinambis lizard and the dunes sagebrush lizard, Sceloporus arenicolus.
Their habitat requirements include large networks of shinnery oak (Quercus havardii), which are short (<2 m) shrubs, and a sloping, sandy topography, where the lizards use "blowouts" as their primary microhabitat.