Professor, Biological Sciences
My research focus is on vertebrates that are difficult to study due to low population density or cryptic habits. This includes not only endangered species, but also common species such as bats and snakes, which can be very challenging to find, observe, and experiment with. Only long-term studies will reveal the answers to some questions about the habitat use, behavior, and population dynamics of such secretive animals.
My students and I are currently working on social aspects of basking behavior in aquatic turtles. We are interested in whether turtles choose basking sites at random with respect to other turtles, and how the physical environment and social environment affect duration of basking bouts.
When I'm not teaching or doing research I like to spend time improving my skills as a nature photographer. A few of my photos can be seen at the link below.
B.S. in Biology, Baylor University
M.S. in Zoology, University of Florida
Ph.D. in Zoology, Savannah River Ecology Laboratory and University of Florida
BIO 105 - Plants & People
BIO 106 - Plants & People Lab
BIO 449-65 - Wildlife Biology
6:00 PM, H105
BIO 445-54 - Herpetology
- Apparent Decline of the Golden Toad: Underground or Extinct? Copeia, Vol. 1992, No. 2. pp. 413-420.
- DEMOGRAPHY, TERRESTRIAL BEHAVIOR, AND GROWTH OF SONORA MUD TURTLES (KINOSTERNON SONORIENSE) IN AN EXTREME HABITAT. Herpetological Monographs, 24, 2010, 174–193
- Ontogenetic Loss of Phenotypic Plasticity of Age at Metamorphosis in Tadpoles. Ecology, Vol. 74, No. 8. (Dec., 1993), pp. 2405-2412.
- SONORAN DESERT SNAKE COMMUNITIES AT TWO SITES: CONCORDANCE AND EFFECTS OF INCREASED ROAD TRAFFIC. Herpetological Conservation and Biology 2011. 6(1):61-71.