Stephen G. Mech, Ph.D. – Albright College

Stephen G. Mech, Ph.D.

Stephen G. Mech, Ph.D.

Professor of Biology
Science Center room 231

Ph.D., Washington State University (Zoology)
M.S., Washington State University (Statistics)
B.S., Boise State University (Biology)

Areas of Expertise

  • Landscape ecology
  • Mammalogy
  • Population genetics

Areas of Research


  • Brown, A.S., S.G. Mech, and J. Drasher. 2021. Implications of anthropogenic habitat disturbance on the home range size and habitat selection of the Eastern box turtle (Terrapene c. carolina). Journal of the Pennsylvania Academy of Science 95: 28-42.
  • Pope, B.M., P.K. Kennedy, S.G. Mech, and M.L. Kennedy. 2017. Spatial variation in sexual size dimorphism of the American black bear (Ursus americanus) in eastern North America. The Southwestern Naturalist 62: 121-128.
  • Mech, S.G. and A. Chesh. 2014. Effects of roads on movement of displaced white-footed deermice (Peromyscus leucopus). Journal of the Pennsylvania Academy of Science 88: 89-94.
  • Storfer, A., S.G. Mech, M.W. Reudink, and K. Lew. 2014. Inbreeding and strong population subdivision in an endangered salamander. Conservation Genetics 15: 137-151.
  • Bolker, B.M., F. de Castro, A. Storfer, S.G. Mech, E. Harvey and J.P. Collins. 2008. Disease as a selective force precluding widespread cannibalism: A case study of an iridovirus of tiger salamanders, Ambystoma tigrinumEvolutionary Ecology Research 10: 105-128.
  • Storfer, A., M.E. Alfaro, B.J. Ridenhour, J.K. Jancovich, S.G. Mech, M.J. Parris, and J.P. Collins. 2007. Phylogenetic concordance analysis shows an emerging pathogen is novel and endemic. Ecology Letters 10: 1075-1083.
  • Reudink, M.W., S.G. Mech, and R.L. Curry. 2007. Genetic structure of a large breeding population of hybridizing chickadees in southeastern Pennsylvania. Auk 12: 463-478.
  • Reudink, M.W., S G. Mech, and R. L. Curry. 2005. Extra-pair paternity and mate choice in a chickadee hybrid zone. Behavioral Ecology 17: 56-62.
  • Storfer, A, S.G. Mech, J.P. Collins, M.W. Reudink, R.E. Ziemba, and J. Warren. 2004. Evidence for introgression in the endangered tiger salamander, Ambystoma tigrinum stebbinsiCopeia 4: 783-796.
  • Kollars, P.G., M.L. Beck, S.G. Mech, P.K. Kennedy and M.L. Kennedy. 2004. Temporal and spatial genetic variability in white-tailed deer (Odocoileus virginianus). Genetica 121: 269-276.
  • Kennedy, M.L., S.G. Mech, B.Tran, J.W. Grubaugh, and C. Lydeard. 2003. An assessment of sexual size dimorphism in the coyote (Canis latrans). Mammalia 67: 411-417.
  • Mech, S.G., A. Storfer, J.E. Ernst, M.W. Reudink, and S.C. Maloney. 2003. Polymorphic microsatellite loci for tiger salamanders, Ambystoma tigrinumMolecular Ecology Notes 3: 79-81.
  • Mech, S.G., A.S. Dunlap, and J.O. Wolff. 2003. Female prairie voles do not select mating partners based on scent marking or agonistic behavior. Behavioural Processes 61: 101-108.


Recent Student Research Collaborations

  • Ryan Brett ’20: “Regional Differences in ectoparasite density and survivorship and reproduction of Peromyscus leucopus
  • Abbi (Waltz) Brown ’20: “The short and long term effects of anthropogenic habitat disturbance on the geographic range distribution of Terrapene carolina
  • Stephanie Dea ’18: “Effects of ectoparasites on survivorship and reproduction of Peromyscus leucopus” and “Effects of weather patterns on trapping success of Peromyscus leucopus
  • Emily Phillips ’17: “Long-term survivorship of small mammals in a managed forest”
  • Jordyn Sanger ’17, Tiffany Frey ’17, and Stephanie Dea ’18: “Impacts of forest management on small mammals in Nolde Forest”
  • Alyssa Wunsch ’16 and Kayle Smith ’16: “Effects of anthropogenic land use on small mammal populations in Nolde Forest”
  • Sara Parsons ’11 and Marie Zamanis ’13: “Population genetic study of white-footed deer mice in Nolde Forest”
  • Chris Hauer ’12 and Gina Curmaci ’13: “Impact of windmills on small mammal communities”


Other Research Interests

Dr. David Osgood and I are working with Berks County Parks and Recreation Department and Berks Nature to establish deer and rodent exclosures at Antietam Lake Park. This will be a long-term study to explore how recently-implemented deer population control measures will impact forest regeneration. This project should result in several collaborative student projects over the next several years.

Courses Taught

BIO 152: General Biology II (Systematics, Ecology, and Evolution)

BIO 200: Biometry

BIO 203: Introduction to Genetics

BIO 220: Evolution

BIO 246: Conservation Biology

BIO 319: Vertebrate Natural History

BIO 494: Mammalian Evolution

ESS 325: Introduction to Geographic Information Systems

Professional Activities

  • Principle Investigator in the NSF-funded Albright College Environmentally-oriented Scholarship (ACES) program
  • Coordinator of the Albright College Costa Rica Río de Sueños property
  • Co-chair of the Public Education Committee for the American Society of Mammalogists
  • Editor of the Journal of the Pennsylvania Academy of Science