Amy R. Wethington

Professor of Biology

Contact Information

(252) 398-6216

"I find the students here very enthusiastic and I enjoy getting to know them and helping them discover their strengths and talents. One of Chowan University's many assets is its proximity to numerous pristine freshwater and marine ecosystems that offer excellent opportunities for our students."


  • PhD, Biological Sciences,University of Alabama, Tuscaloosa
  • MA, Evolutionary Ecology and Behavior, Indiana University
  • MS, Marine Biology, University of Charleston
  • BS, Biology, College of Charleston
  • BS, Biochemistry, Clemson University

Courses Taught

  • Microbiology
  • Animal Behavior
  • Invertebrate Biology
  • Biochemistry
  • Directed Research
  • General Biology

Academic & Scholarly Achievements

  • Dr. Wethington also currently serves as a Research Associate at the Carnegie Museum of Natural History. 

    Wethington, A. R., J. Wise, and R. T. Dillon, Jr. 2009. Genetic and morphological characterization of the Physidae of South Carolina (Gastropoda: Pulmonata: Basommatophora), with description of a new species. The Nautilus 124(4):282-292.

    Sandland, Gregory J., Amy R. Wethington, Alice V. Foster, and Dennis J. Minchella. 2009. Effects of host genetic variation on the interaction between an aquatic snail and its locally adapted parasite. Parasitology Research 105: 553-561.

    Rogers, D. Christopher and Amy R. Wethington. 2007. Physa natricina Taylor 1988, junior synonym of Physa acuta Draparnaud, 1805 (Pulmonata: Physidae). Zootaxa 1662: 45-51. >Click to View

    Wethington, Amy R. and Charles Lydeard. 2007. A molecular phylogeny of Physidae (Gastropoda: Basommatophora) based on mitochondrial DNA sequences. Journal of Molluscan Studies doi: 10.1093/mollus/eym021. >Click to View

    Dillon, Robert T., Jr., John D. Robinson, and Amy R. Wethington. 2007. Empirical estimates of reproductive isolation among the freshwater pulmonate snails Physa acuta, P. pomilia, and P. hendersoni. Malacologia 49(2):283-292. >Click to View

    Wethington, A.R., M. Zavodna, M.K. Smith, G. Oliverira, F. Lewis, and D.J. Minchella. 2007. Population genetic structure of Biomphalaria glabrata in a schistosomiasis-endemic region in Brazil. Journal of Molluscan Studies 73:45-52. >Click to View

    Dillon, R. T., and A. R. Wethington. 2006. No-choice mating experiments among six nominal taxa of the subgenus Physella (Basommatophora: Physidae). Heldia 6: 41 - 50. >Click to View

    Dillon, R.T., Jr. and A.R. Wethington. 2005. The Michigan Physidae revisited: a population genetic survey. Malacologia 48(1-2): 133-142. >Click to View

    Dillon, R.T., Jr., J.D. Robinson, T.P. Smith, and A.R. Wethington. 2005. No reproductive isolation between freshwater pulmonate snails Physa virgata and P. acuta. Southwestern Naturalist 50(4):415-422.

    Wethington, A.R. and R. Guralnick. 2004. Are hot-spring physids distinctive lineages? A molecular systematic perspective. American Malacological Bulletin 19:135-144.

    Dillon, R.T., Jr. and A. R. Wethington. 2004. No-choice mating experiments among six nominal taxa of the subgenus Physella (Basommatorphora: Physidae). Heldia 6:1-9.

    Dillon, R. T., Jr., A. R. Wethington, J. M. Rhett, and T. P. Smith. 2002. Populations of the European freshwater pulmonate Physa acuta are not reproductively isolated from American Physa heterostropha or Physa integra. Invertebrate Biology 121(3): 226-234.

    Wethington, A.R., E.R. Eastman, and R.T. Dillon, Jr. 2000. No premating reproductive isolation among populations of a simultaneous hermaphrodite, the freshwater snail Physa. Pages: 245-251 in Freshwater Mollusk Proceedings - Part II: Proceedings of the first Freshwater Mollusk Conservation Society Symposium, March 1999. P.D. Johnson and R.S. Butler editors. Ohio Biological Society, Columbus, Ohio.

    Wethington, A.R. and R.T. Dillon, Jr. 1997. Selfing, outcrossing, and mixed mating in the freshwater snail Physa heterostropha: lifetime fitness and inbreeding depression. Invertebrate Biology 116(3):192-199. >Click to View

    Wethington, A.R. and R.T. Dillon, Jr. 1996. Gender choice and gender conflict in a non-reciprocally mating simultaneous hermaphrodite, the freshwater snail, Physa. Animal Behaviour 51:1107-1118. >Click to View

    Dillon, R.T., Jr. and A.R. Wethington. 1995. The biogeography of sea islands: clues from the population genetics of the freshwater snail, Physa heterostropha. Systematic Biology 44:400-408. >Click to View

    Dillon, R. T. Jr. and A.R. Wethington. 1994. Inheritance at five loci in the freshwater snail, Physa heterostropha. Biochemical Genetics 32(3/4):75-82.

    Wethington, A.R. and R.T. Dillon, Jr. 1993. Reproductive development in the hermaphroditic freshwater snail, Physa, monitored with complementing albino lines. Proceedings of the Royal Society (London) B 252:109-114. >Click to View

    Dillon, R.T. Jr. and A.R. Wethington. 1992. The inheritance of albinism in a freshwater snail, Physa heterostropha. Journal of Heredity 83(3):208-210.

    Wethington, A.R. and R.T. Dillon, Jr. 1991. Sperm storage and evidence for multiple insemination in a natural population of the freshwater snail, Physa. American Malacologicial Bulletin 9:99-102.