I am interested in a wide variety of ecological and evolutionary questions. I have addressed these questions using traditional field techniques as well as modern biochemical methods.
Recently I have been working on bats in Big Bend National Park with Loren Ammerman.
First record of Lasiurus xanthinus (Chiroptera: Vespertilionidae) in Texas. Southwestern Naturalist 44(3):343-347.
Yucca provides roost for Lasiurus xanthinus (Chiroptera, Vespertilionidae) in Texas. Southwestern Naturalist 45(3):338-340
Bat ectoparasites from the Trans-Pecos region of Texas, including notes from Big Bend National Park. Journal of Medical Entomology 38(3): 400-404.
I have also investigated questions of evolutionary relationships and genetic diversity.
Ribosomal DNA and the phylogeny of frogs. Herpetological Monographs 7:118-131.
Evolutionary relationships of the blennioid fish families Clinidae, Labrisomidae, and Chaenopsidae: congruence among DNA sequence and allozyme data. Bulletin of Marine Science 52(1):496-515.
Minimal genetic variation in a morphologically diverse species (Florida Tree Snail, Liguus fasciatus). Journal of Heredity 82:282-286.
The relationships of the coelacanth Latimeria chalumnae: evidence from sequences of vertebrate 28S ribosomal RNA genes. Pp. 119-130. In: The Biology of Latimeria chalumnae and Evolution of Coelacanths.
At Texas Wesleyan University I supervised students doing research on numerous other topics. Some examples
Geographic Variation and Genetic Substructuring of Myotis californicus and Myotis ciliobrum.
The effect of food abundance on the distribution of fox squirrels.
Bird species-richness and abundance in grassland and woodland communities.
“Edge Effect” on medium-sized mammals in a wildlife refuge.
Thermal variation in squirrel nest boxes.
Gender differences in rat nocturnal activity.
Vertebrate surveys in urban and rural environments.
Microbial degradation of methyl tert-butyl ether.
Effectiveness of chelex versus organic DNA extractions in a forensics lab.