My graduate and postdoctoral research focused on the impacts of variations in aquatic and terrestrial habitat quality on pond-breeding amphibians (mostly spotted salamanders and American toads), and was always conceived in a conservation context. I have used a wide range of experimental approaches---from molecular analyses and small-scale behavioral studies to large, landscape-scale field experiments---to study the ecological implications of habitat alteration for amphibians. Past research topics include: the effects of landscape composition on the genetic population structure of salamanders; the importance of aquatic vegetation structure in mediating biotic interactions of pond-breeding amphibians; differential growth, locomotor performance, and survival of larval and juvenile amphibians from shaded and open-canopy ponds; and the importance of wetland hydroperiod and upland forest buffers for vernal pool-breeding amphibians. By observing how populations and communities respond along environmental gradients (e.g., hydroperiod, canopy cover), and in the presence of multiple stressors (e.g., predation pressure, pesticide exposure), we can: (1) deepen our understanding of how systems function and (2) make predictions about how communities will respond to future environmental alterations caused by global climate change and changes in land use.
Ph.D., Zoology, Miami University - Ohio
M.S., Biology, University of Akron
B.S., Wildlife Ecology; Biological Aspects of Conservation, University of Wisconsin
Certificate, Postsecondary Education, University of Akron
IA 401: International Perspectives
LSA 401: Scientific Resrch Exploration
NR 417: Soph Seminar: Wildlife Bio
NR 435: Honors/Contemp Conservatn Iss
NR 444: Does Extinction Matter?
NR 740: Inventory &Montoring Ecol Comm
Davis, M. J., Purrenhage, J. L., & Boone, M. D. (2012). Elucidating Predator–Prey Interactions Using Aquatic Microcosms: Complex Effects of a Crayfish Predator, Vegetation, and Atrazine on Tadpole Survival and Behavior. Journal of Herpetology, 46(4), 527-534. doi:10.1670/10-185
Freidenfelds, N. A., Purrenhage, J. L., & Babbitt, K. J. (2011). The effects of clearcuts and forest buffer size on post-breeding emigration of adult wood frogs (Lithobates sylvaticus). Forest Ecology and Management, 261(11), 2115-2122. doi:10.1016/j.foreco.2011.03.005
Greenwald, K. R., Purrenhage, J. L., & Savage, W. K. (2009). Landcover predicts isolation in Ambystoma salamanders across region and species. Biological Conservation, 142(11), 2493-2500. doi:10.1016/j.biocon.2009.05.021
Purrenhage, J. L., & Boone, M. D. (2009). Amphibian Community Response to Variation in Habitat Structure and Competitor Density. Herpetologica, 65(1), 14-30. doi:10.1655/08-017r1.1
PURRENHAGE, J. L., NIEWIAROWSKI, P. H., & MOORE, F. B. -G. (2009). Population structure of spotted salamanders (Ambystoma maculatum) in a fragmented landscape. Molecular Ecology, 18(2), 235-247. doi:10.1111/j.1365-294x.2008.04024.x