Skip to main content
Skip to main menu Skip to spotlight region Skip to secondary region Skip to UGA region Skip to Tertiary region Skip to Quaternary region Skip to unit footer


John Wares

Blurred image of the arch used as background for stylistic purposes.
Ph.D. (2000) Duke University
  • Grant Support -
    • National Science Foundation, "Selection and Genetic Succession in the Intertidal – Population Genomics of Pisaster ochraceus During a Wasting Disease Outbreak and its Aftermath"
  • Research Interests -
    • I study gene flow and molecular evolution in natural populations with a particular interest in examining the effects of asymmetric dispersal. Although the approaches I use would fit wind-dispersed and riverine species, most of the work in my lab is on marine species, with barnacles being one of my favorite groups. The dispersal of marine larvae has the potential to add to our understanding of how physical and environmental forces lead to the balance of diversity we see in coastal communities. My overall interest in exploring cryptic diversity in natural populations has also led me to understand host-pathogen and host-microbe interactions and responses.


Research Areas:
Selected Publications:

Govindarajan, A.F., M. R. Carman, M.R. Khaidarov, A. Semenchenko, J.P. Wares. 2017. Mitochondrial diversity in Gonionemus (Trachylina: Hydrozoa) and its implications for understanding the origins of clinging jellyfish in the Northwest Atlantic Ocean. PeerJ 5:e3205.

Pringle, J. M., J. E. Byers, R. He, P. Pappalardo, & J.P. Wares. (2017).  Ocean currents and competitive strength interact to cluster benthic species range boundaries in the coastal ocean.  Marine Ecology Progress Series 567:29-40.

Ewers-Saucedo, C., J. M. Pringle, H. H. Sepúlveda, J. E. Byers, S. A. Navarrete, and J. P. Wares. 2016. The oceanic concordance of phylogeography and biogeography: A case study in Notochthamalus. Ecology & Evolution, DOI: 10.1002/ece3.2205

Wares, J. P. and L. Schiebelhut. 2016. What doesn’t kill them makes them stronger: An association between elongation factor 1-α overdominance in the sea star Pisaster ochraceus and "sea star wasting disease”. PeerJ 4:e1876 DOI:10.7717/peer1876

Govindarajan, A. F., F. Bukša, K. Bockrath, J. P. Wares, J. Pineda. 2015. Phylogeographic structure and northward range expansion in the barnacle Chthamalus fragilis. PeerJ 3:e926

Pappalardo, P., J. M. Pringle, J. P. Wares, J. E. Byers. 2015. The location, strength, and mechanisms behind marine biogeographic boundaries of the east coast of North America. Ecography, DOI: 10.1111/ecog.01135.

Ewers-Saucedo, C., M. Arendt, J. P. Wares, D. Rittschof. 2015. Growth, mortality and mating group size of an androdioecious barnacle: implications for the evolution of dwarf males. J. Crustacean Biology, DOI: 10.1163/1937240X-00002318.

Winternitz, J., M. Yabsley, J. P. Wares, S. Altizer. 2014. Wild cyclic voles maintain high neutral and MHC diversity independently of parasitism. Evol. Ecol. 28: 957-975.

Popovic, I., P. Marko, J. P. Wares, M. Hart. 2014. Selection and demographic history shape the molecular evolution of the gamete compatibility protein binding in Pisaster sea stars. Ecology and Evolution 2014; 4(9):1567–1588

Pringle, J. M., J. E. Byers, P. Pappalardo, J. P. Wares, D. Marshall. 2014. Circulation constrains the evolution of larval development modes and life histories in the coastal ocean. Ecology 95:1022–1032.

Articles Featuring John Wares

“The Flint is one of the most diverse river basins in Georgia, for both fishes and mussels. So, it’s really important for conservation reasons,” said Peter Hazelton, an assistant professor at the UGA Warnell School of Forestry and Natural Resources. Out of the…

Graduate Students

Doctoral Student

Support Genetics at UGA

Thank you for your support to the Genetics Department and the University of Georgia. Contributions from alumni and friends are critical to maintaining our core missions of teaching and research. Gifts are tax deductible.

Click here to learn more

Every dollar contributed to the department has a direct impact on our students and faculty.