Skip to main content

Experienced faculty and hands-on experience

Looking for professors who can offer a balance of expertise and hands-on experience? When you study biology at SFA, you will work side-by-side with professors in and outside of the classroom. In addition to attending classes and lectures (taught by professors, not teaching assistants), you will put your knowledge to work in a variety of ways, and in research settings ranging from well-equipped labs to field sites in the Piney Woods ecoregion and beyond.

Dr. Stephen Mullin
Department Chair

Dr. Mullin’s research is primarily focused on behavior and community ecology involving species of reptiles and amphibians. Dr. Mullin holds a B.A. from the University of California at Berkley, an M.S. from the University of South Florida and a Ph.D. from the University of Memphis. He is the coeditor of Snakes: Ecology & Conservation and the current editor of Herpetologica

Dr. Daniel Bennett

Dr. Bennett’s research interests include systematics, behavior and geological history of bees and wasps. Dr. Bennett holds a B.S. in zoology from the University of Washington, an M.A in entomology from the University of Kansas, and a Ph.D. in entomology from the University of Kansas.

Dr. Brent Burt

Dr. Burt’s research interests include behavioral and evolutionary biology, with a current focus on the adaptive nature of animal behavior and morphology. Dr. Burt holds a B.S. in biology from Angelo State University, an M.A. in systematics and ecology from the University of Kansas, and a Ph.D. in ecology and evolutionary biology from the University of Arizona.

Dr. Sarah Canterberry

Dr. Canterberry completed her Ph.D. in the Canine Genetics Research Laboratory at Texas A&M University. She then spent two years as a postdoctoral researcher for the Reproductive Sciences Laboratory in the College of Veterinary Medicine at Texas A&M University. Her research interests include virus prevention and treatment in horses and other equine species.

Erin Childress

Erin Childress is a coordinator for the Human Anatomy and Physiology Lab, an SFA 101 instructor and the facility advisor for Driving Jacks, SFA’s safe ride program. She holds B.S. and an M.S. from SFA.

Dr. Bea Clack

Dr. Clack holds a B.S. in biochemistry from Texas A&M University, and M.S. and Ph.D. degrees in molecular and cell biology from the University of Texas at Dallas. Her areas of interest include the development of eco-friendly pesticides, the identification of anti-cancer compounds in plants and the development of new treatments for celiac disease. 

Dr. Dennis Gravatt

Dr. Gravatt’s holds a B.S. in systematics and ecology and an M.A. in botany from the University of Kansas. He holds a Ph.D. from Louisiana State University. Dr. Gravatt’s research is focused on understanding how plants adapt to environmental stress and growth-limiting factors such as flooding, shallow soil, and increases in atmospheric carbon dioxide concentrations.

Dr. Jennifer Gumm

Dr. Gumm’s areas of interest include reproductive behaviors, sexual selection and animal communication systems. Dr. Gumm holds a B.S. from Millikin University, an M.S. from Texas State University, and a Ph.D. from Lehigh University. She completed her postdoctoral research at the University of Maryland, Baltimore County.

Ron Havner

Ron Havner is the lab coordinator for the microbiology laboratories. He holds a B.S. in physiological psychology from the University of California at Santa Barbara and an M.S. in biology from SFA.

Dr. Vance Imhoff

Dr. Imhoff is a lecturer for several courses offered by the department. He holds a B.A. from DePaul University, a B.S. from the University of Texas, and a Ph.D. from Lehigh University.  His research is focused understanding the genetic basis and evolution of traits within and across species of lepidopterans. 

Dr. Matthew Kwiatkowski

Dr. Kwiatkowski’s research focuses on the ecology, evolution, and conservation of reptiles and amphibians, with particular emphasis on spatial ecology and sexual selection. He holds a B.S. in biology from New Mexico State University, an M.A. in biology from the University of South Dakota and a Ph.D. in biology from Arizona State University. Dr. Kwiatskowski is the coordinator for the graduate program.

Dr. Kevin Langford

Dr. Langford holds a B.S. and an M.S. in biology from SFA, and a Ph.D. from the Medical College of Wisconsin. His research interests focus on the regulatory processes of embryonic development, using both vertebrate and invertebrate models. He is the coordinator of SFA’s pre-health professions program.

Dr. Rebecca Parr

After earning a B.S. in medical technology from McNeese State University, Dr. Parr earned an M.S and a Ph.D. in veterinary microbiology from Texas A&M University. Dr. Parr’s areas of interest include environmental detection and the regulation of gene expression by viral pathogens and host-virus interactions.

Dr. Don Pratt

Dr. Pratt holds a B.S. in botany from Brigham Young University, and M.S. and Ph.D. degrees in botany, plant systematics and evolution from Iowa State University. His research interests include plant systematics, with an emphasis on the evolutionary histories of Amaranthus, and the Chenopodiaceae and Amaranthaceae plant families.

Gene Sullivan

Gene Sullivan is the laboratory coordinator for the botany and non-majors biology lab sections.  He holds a B.A. in biology from the University of Missouri at St. Louis.

Justin Sullivan

Justin Sullivan holds a B.S. and an M.S. in biology from SFA. He is the laboratory coordinator for the zoology and the non-majors human biology lab sections.


Dr. Josephine Taylor

Dr. Taylor holds a B.S. an agricultural education from SFA and a Ph.D. in plant pathology from the University of Georgia. She completed postdoctoral training at Texas A&M University. Dr. Taylor’s research interests include the mechanisms of plant disease resistance and host-pathogen interactions in fungal diseases of plants. She currently manages SFA’s electron microscopy lab.

Dr. Alexandra Martynova-Van Kley

Dr. Van Kley earned a B.S. in biology, biochemistry and pedagogy from Bashkir State University in Ufa, Russia. She then earned a Ph.D. in plant physiology from the Belarussian Academy of Science in Minsk, Belarus. Her research focuses primarily on the detection and characterization of bacterial and fungal communities.

Dr. James Van Kley

Dr. Van Kley holds a B.S. from Calvin College, an M.S from Central Michigan University and a Ph.D. from Purdue University, where he studied forest ecology. His research interests in biogeography focus on patterns of vegetation across the East Texas landscape. He is the curator of the Pineywoods Plants Digital Gallery, and the ASTC Herbarium at SFA,

Dr. Stephen Wagner

Dr. Wagner holds a B.S. in environmental biology from Heidelberg College, an M.S. in microbiology from North Carolina State University, and a Ph.D. in soil microbiology from Clemson University. His research focuses on microbial ecology, with emphasis on bioremediation, plant-parasite interactions and management practices for soil microbes.

Dr. Robert Wiggers

Dr. Wiggers holds a B.S. in biochemistry and a Ph.D. in genetics from Texas A&M University.  He joined SFA after completing a post-doctoral position at the UCLA School of Medicine. His research interests focus on the nuclear morphology, and the genetics of infectious diseases of plants and non-human mammals.



Department of Biology

Physical Address:
Miller Science Building
Suite 101

Mailing Address:
P.O. Box 13003, SFA Station
Nacogdoches, Texas 75962

Request Information for Future Students

Please fill out the form below to receive information from SFA. If you’re not a future student and want to contact us, click here.

Fields marked with * are required.

Who are you?*

Date of Birth*

Mailing Address (Be sure to add your apt. or unit # or P.O. Box, if applicable)*

When would you like to attend SFA and what will be your major?

Are you any of these types of students?