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Shane Webb, Ph.D.

Title: Professor, Biology
Phone: 706-867-2947

Office: Health and Natural Sciences 408, Dahlonega
Areas of Expertise: Molecular Evolution, Systematics, Ichthyology

Courses Taught

  • BIOL 3220K - Genetics
  • BIOL 4540K - Biotechnology
  • BIOL 4760 - Bioinformatics
  • BIOL 4450K - Evolution 


  • Ph.D., Biology, University of Michigan, Ann Arbor, 1998
  • M.S., Biology, University of Michigan, Ann Arbor, 1993
  • B.S., Biology, University of California at Riverside, 1991

Research/Special Interests

Dr. Webb infers the phylogenetic (evolutionary) relationships of freshwater fishes using DNA sequences and to a lesser extent morphology. Presently Dr. Webb is studying the evolutionary relationships and phylogeography of the goodeids of the Mesa Central of Mexico. At a broader level, his interests include biogeography, the factors affecting the species richness of groups, and the documentation and conservation of fish diversity.


Regus, J.U., J.B. Johnson, S.A. Webb & D.N. Reznick. 2013. Comparative life histories of fishes in the genus Phallichthys (Pisces: Poeciliidae).  J. Fish Biology. 83(1): 144-155.

Webb, S.A. (accepted) Goodeidae (Splitfins, Poolfishes, and Springfishes). In: B. Burr & M. Warren (eds.) North American Freshwater Fishes: Natural History, Ecology, and Conservation. Johns Hopkins University Press. [Invited contribution]

Burr, B., S.A. Webb, et al. (accepted) The Anatomy and Identification of North American Freshwater Fishes.  In: B. Burr & M. Warren (eds.) North American Freshwater Fishes: Natural History, Ecology, and Conservation. Johns Hopkins University Press. [Invited contribution]

Ritchie, M., R.M. Hamill, J.A. Graves, A.E. Magurran, S.A. Webb, & C. Macias-Garcia. 2007. Sex and differentiation: Population genetic divergence and sexual dimorphism in Mexican goodeid fish. J. Evol. Bio. 20(5): 2048-2055.

Hamill, R., S.A. Webb, C. Macias Garcia, J. Graves, A. Magurran, & M. Ritchie. 2007. Comparison of genetic diversity at new microsatellite loci in near-extinct and non-endangered species of Mexican goodeine fishes and prediction of cross-amplification within the family. J. Fish Bio. 70(Suppl. A): 16-32.

Ritchie, M.G., S.A. Webb, J.A. Graves, A.E. Magurran, & C. Macías Garcia. 2005. Patterns of speciation in Mexican Goodeid fish: Sexual conflict or adaptive radiation? J. Evol. Bio. 18(4): 922-929.

Webb, S.A., & M.L. Smith. 2005. Artificial key to the adult goodeids of Mexico. In: R.R. Miller, W.L. Minckley, and S.M. Norris. Freshwater Fishes of Mexico. University of Chicago Press, Chicago, IL.

Webb, S.A., J.A. Graves, C. Macias Garcia, A.E. Magurran, D. Ó Foighil, & M.G. Ritchie. 2004. Molecular phylogeny of the live-bearing Goodeidae (Cyprinodontiformes). Mol. Phyl. Evol. 30(3): 527-544.

Webb, S.A. 2002. The molecular systematics of the genus Allodontichthys. (Cyprinodontiformes: Goodeidae). In: J. Nielsen (ed.) The Freshwater Fishes of Mexico. Rev. Fish Biol. Fish. 12(2/3): 193-205.

Webb, S.A., & R.R. Miller. 1998. Zoogoneticus tequila, a new goodeid fish (Cyprinodontiformes) from the Ameca drainage of Mexico, and a rediagnosis of the genus. Misc. Publ. Mus. Zool. Univ. Michigan 725: 1-23.

Webb, S.A., & T.N. Todd. 1995. Biology and status of the shortnose cisco Coregonus reighardi Koelz in the Laurentian Great Lakes. In: M. Luczynski, et al. (eds.) Biology and Management of Coregonid Fishes. Arch. Hydrobiol. Spec. Iss. Advanc. Limnol. 46: 71-77.

Work Experience

  • Postdoctoral Fellow, Biology, University of St. Andrews, Scotland, 1998-2001

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