| Research Interests: | descriptive ecology, autecology (broadly defined to include physiological ecology, biophysical ecology, animal behavior, and population biology), evolutionary biology, theoretical ecology, organismal biology, and conservation biology; Proximate and ultimate interactions between organisms and their environments; factors of temperature, water, and nutrients; the physics and physiological mechanisms of interaction, the ecology and evolutionary significance of such interactions, and the design of organisms in relation to such interactions; Time and space utilization, sharing and inter-relationships among animals; The ecological importance of Grinnellian Niches in organisms, and the autecological function of these niche relationships in determining distribution, dispersion, dispersal, and population fluctuations; Conservation Biology: the ecology and conservation of reptilian; the biology, ecology, and conservation of deserts; and paleobiology and extinction process |