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Ryan, Travis

Professor - Biological Science
Biological Sciences


Gallahue Hall - 047

Academic/Professional/Personal Focus

Areas of Expertise
ecology, conservation, biology, herpetology (zoology), evolutionary biology

Contributions: (published works or studies, conference presentations)


Ryan, T. J., C. A. Conner*, B. A. Douthitt*, S. C. Sterrett*, and C. M. Salsbury.  2008.  Movement and habitat use of two aquatic turtles (Graptemys geographica and Trachemys scripta) in an urban landscape.  Urban Ecosystems 11:213-225.


Ryan, T. J.  2007.  Hydroperiod and metamorphosis in the small-mouthed salamander (Ambystoma

      texanum).  Northeastern Naturalist14:419-428.


R. D. Semlitsch, T. J. Ryan, M. Chatfield, B. Drehman, K. Hamed, N. Pekarek, and M. Spath.  2007.  Legacy of land use in Southern Appalachian forests: effects on terrestrial salamander abundance along edges and within abandoned logging roads.  Conservation Biology 21:159-167.

Ryan, T. J., and A. Lambert*.  2005.  Presence and colonization of Placobdella on two species of freshwater turtles (Graptemys geographica and Sternotherus odoratus).  Journal of Herpetology 39:284-287.

Conner, C. A.*, B. A. Douthitt*, and T. J. Ryan. 2005.  Descriptive ecology of a turtle assemblage in an urban landscape.  American Midland Naturalist 153:426-435.

Ryan, T. J., and G. A. Plague.  2004.  Breeding asynchrony, survival, and the fitness of alternative adult morphs in Ambystoma talpoideum.  Oecologia 140:46-51.    

Ryan, T. J., and R. D. Semlitsch.  2003.  Growth and the expression of alternative life cycles in the salamander Ambystoma talpoideum (Caudata: Ambystomatidae).  Biological Journal of the Linnean Society 80:639-646.

Ryan, T. J., T. Philippi, Y. A. Leiden, M. E. Dorcas, T. B. Wigley, and J. W. Gibbons.  2002. Monitoring herpetofauna in a managed forest landscape: effects of habitat types and census techniques.  Forest Ecology and Management 167:83-90.       

 * indicates Butler University undergraduate author

Butler Assignment (classes or work duties)
ecology, conservation biology, introductory biology, urban ecology, Woods Lecture series course for STS


BS (magna cum laude) biology, 1993 - Western Carolina University MS biology 1995, Western Carolina University Ph.D. biology (ecology and evolution), 2000 - University of Missouri

Butler University, Student Government Association “An Apple for You” Award2002; Faculty Institutes for Reforming Science Teaching (FIRST II), Butler University Team Leader 2001; Britannica Book of the Year, featured research on reptile conservation biology 2000; Superior Graduate Achievement Award, University of Missouri 1999; Graduate Research Award, Herpetologists’ League, 1999; Joint Meeting of ASIH/HL/SSAR, State College, PA; Eugene P. Odum Award, Ecological Association of America (Southeastern Chapter), 1999 ASB Meeting, Wilmington, NC