Sarah K. Woodley, Ph.D.Associate Professor of Biological Sciences
Bayer School of Natural and Environmental Sciences
Department of Biological Sciences
225A Mellon Hall
Education:Ph.D., Biology, Arizona State University, 1999
M.S., Ecology and Evolution, University of Chicago, 1992
B.A., French, Indiana University, 1988
B.S., Biology with Honors, Indiana University, 1988
Project 1: Impact of Environmental Degradation on Amphibian Health and Reproduction
Environmental contaminants such as the herbicide atrazine, acid mine drainage, and natural gas extraction are potential stressors that disrupt physiological processes and behaviors essential to survival and reproduction. I am examining the effects of environmental stressors on amphibian physiology and behavior. This work involves characterizing basic amphibian stress physiology in response to both natural and manmade stressors, in the field and the laboratory. My work measures the effects of environmental stressors on reproductive behavior, anti-predator behavior, stress hormone levels, brain neuropeptide levels, intermediary metabolism, and immune function, including susceptibility to the amphibian chytrid fungus.
Project 2: Sex Differences in Chemical Communication
Sex differences in the nervous system are correlated with sex differences in behavior, physiology and disease. Many structures of the nervous system exhibit sex differences in size, but it is still unclear as to how a difference in neural structure translates into a difference in functionality. My research seeks to understand the function and physiological regulation of sexual dimorphism in the size of a sensory neuroepithelium. My model is the sexually dimorphic vomeronasal organ in plethodontid salamanders. In this family of salamanders, the vomeronasal organ (a chemosensory neuroepithelium) is twice as big in males as in females, both in absolute size and relative to body size. The simple structure of the neuroepithelium makes it ideal for studies of structure-function relationships. My research integrates behavioral, physiological, neuroendocrine, and molecular approaches.
1. Kiemnec-Tyburczy K.M.*, S. K. Woodley, R.A. Watts, S.J. Arnold and L. D. Houck. 2012. Expression of vomeronasal receptors and related signaling molecules in the nasal cavity of a caudate amphibian (Plethodon shermani). Chemical Senses 37:335-346.
2. Wack, C.L.*, S.E DuRant, W.A. Hopkins, M.B. Lovern, R.C. Feldhoff, and S. K. Woodley. 2012. Elevation of plasma corticosterone to physiologically relevant levels increased metabolic rate in a terrestrial salamander. Comparative Physiology and Biochemistry. Part A, Molecular and Integrative Physiology 161:153-158.
3. BlileyUG, J.M. and S.K. Woodley*. 2011. The effects of repeated handling and treatment with corticosterone on behavior in an amphibian (Ocoee salamander: Desmognathus ocoee). Physiology and Behavior 105: 1132-1139. ** undergraduate co-author
4. Kiemnec-Tyburczy*, K. M., S. K. Woodley, P. W. Feldhoff, R. C. Feldhoff and L. D. Houck. 2011. Ancestral mode of courtship pheromone delivery does not increase receptivity in female red-legged salamanders, Plethodon shermani. J. of Herpetology 45: 169-173.
5. Woodley*, S. K. 2010. Hormones and Reproductive Behaviors in Amphibians In Hormones and Reproduction in Vertebrates, Volume 2: Amphibia (D.O Norris, K.H. Lopez, Eds.), pp. 143-169, Academic Press, invited review chapter.
6. Wack*, C.L., M.B. Lovern, and S.K. Woodley. 2010. Transdermal delivery of corticosterone in terrestrial amphibians. General and Comparative Endocrinology 169: 269-275.
7. Woodley*, S. K., and E. L. Lacy. 2010. An acute stressor alters steroid hormone levels, activity, but not sexual behavior in male and female mountain dusky salamanders (Desmognathus ocoee). Hormones and Behavior 58:427-432.
8. Woodley*, S. K., 2010. Pheromonal Communication in Amphibians. Journal of Comparative Physiology A: Neuroethology, Sensory, Neural and Behavioral Physiology 196:713-727. Invited review paper.
9. Ricciardella, L. F., J.M. BlileyUG, C.C. FethUG and S. K. Woodley*. 2010. Acute stressors increase plasma corticosterone and decrease activity in a terrestrial salamander (Desmognathus ochrophaeus), Physiology and Behavior 101:81-86. ** undergraduate co-authors
10. Schubert, S. N., , C.L. Wack, L. D. Houck, P. W. Feldhoff, R. C. Feldhoff, and S. K. Woodley*. 2009. Exposure to pheromones increases plasma corticosterone concentrations in a terrestrial salamander. General and Comparative Endocrinology 161:271-275.
11. Largen,UG W. and S. K. Woodley*. 2008. Cutaneous tail glands, noxious skin secretions, and scent marking in a terrestrial salamander (Plethodon shermani). Herpetologica 63:270-280. ** undergraduate co-author, featured article January 2009 BioOne
12. Schubert, S. N., L. D. Houck, P. W. Feldhoff, R. C. Feldhoff, and S. K. Woodley*. 2008. Effects of sex on chemosensory communication in a terrestrial salamander (Plethodon shermani). Hormones and Behavior 54:270-277.
13. BennerUG, S. L., and S. K. Woodley*. 2007. The reproductive pattern of male Desmognathine salamanders (Family Plethodontidae) is neither associated nor dissociated. Hormones and Behavior 51:542-547. ** undergraduate co-author, cover article
14. Woodley*, S. K. 2007. Sex steroid hormones and sexual dimorphism of chemosensory structures in a terrestrial salamander (Plethodon shermani). Brain Research 1138: 95-103. .
15. Schubert, S. N., L. D. Houck, P. W. Feldhoff, R. C. Feldhoff, and S. K. Woodley*. 2006. Effects of androgens on behavioral and vomeronasal responses to chemosensory cues in male terrestrial salamanders (Plethodon shermani). Hormones and Behavior 50: 469-476.
2012 Mentor Award for Excellence in Advising Graduate Students, Duquesne University
2012 Duquesne University Presidential Scholarship Award
2012 Nominated by the Department of Biological Sciences for the Faculty Excellence Award in Scholarship for the Bayer School of Natural and Environmental Sciences
2012 Featured as an expert in a weekly magazine published by the American Chemical Society: Everts, S. First Airborne Pheromone. Chemical and Engineering News, Jan. 24th, 2012.
2011-12 National Academies Education Fellow in the Life Sciences
2011 Invited Participant in the National Academies Summer Institute on Undergraduate Education in Biology, Aug. 8 -13, 2011, Yale University
2010 Creative Teaching Award, Duquesne University
2009 Bayer School of Natural and Environmental Sciences Award for Faculty Excellence in Teaching, Duquesne University
2009-present Associate Editor of the journal entitled Herpetologica
2007 Young Investigator Award, International Symposium of Amphibian and Reptile Endocrinology and Neurobiology, Berkeley CA, March 26-28, 2007
2002 Best Postdoctoral Poster Presentation, 29th New England Endocrinology Conference, Amherst, MA, October 5th, 2002
1997-98 P.E.O. Scholars Award
1997 Honorable Mention, Aubrey Gorbman Outstanding Student Paper Award, Division of Comparative Endocrinology, Meeting for the Society for Integrative and Comparative Biology
1996 Aubrey Gorbman Outstanding Student Paper Award, Division of Comparative Endocrinology, Meeting for the Society for Integrative and Comparative Biology
1994-97 Regents Graduate Academic Scholarship, Arizona State University
1989 Eigenmann Scholarship, Department of Biology, Indiana University
1989 Beryl Showers Holland Award, Tri Kappa Society, Indiana University
1988 Phi Beta Kappa Honorary Society, Indiana University
1987 Fernandus and Elizabeth Payne Scholarship in Zoology, Indiana University
1985-89 Honors Division Scholarship, Indiana University