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James Ott, Ph.D.

 Department of Biology

Dr James Ott
James R. Ott, Ph.D.

Associate Professor 

Phone: 512-245-2321

Fax: 512-245-8713


Mailing Address:
Biology Department
Texas State University
601 University Drive
San Marcos, TX 78666


Visit the Ott Lab Page 

Research Interests

  • Insect-Plant Interactions
  • Ecological Genetics
  • Evolutionary Mechanisms

Courses Taught

  • Bio 1331:  Organismal Biology
  • Bio 4301:  Evolution
  • Bio 7428:  Principles of Population Biology II


Warren, C. C., Ott, J. R., and J. A. Veech. 2013. Comparative occupancy and habitat associations of Black-and-White (Mniotilta varia) and Golden-Cheeked Warblers (Setophaga chrysoparia) in the Juniper-Oak Woodlands of central Texas. The American Midland Naturalist 169:382-397
Egan, S. P., Hood G. R., DeVela, G., and J. R. Ott. 2013. Parallel patterns of morphological and behavioral variation among host-associated populations of two gall wasp species PLOS ONE PONE-D-12-25852R3
Egan, S.P, Hood, and J. R. Ott. 2012. Testing the role of habitat isolation among ecologically divergent gall wasp populations. International Journal of Ecology 8pp.doi:10.1155/2012/
Egan, S.P, Hood, G. R., Feder, J. and J. R. Ott. 2012. Divergent host plant use promotes reproductive isolation among cynipid gall wasp populations. Biology Letters 8:605-608
Hunt, J. W., F. W. Weckerly, and J. R. Ott. 2012. Reliability of occupancy and binomial mixture models for estimating abundance of golden-cheeked warblers. The Auk 129:1-5-114
Egan, S. P., Hood, G. R., and J. R. Ott. 2011. Natural selection on gall size: Variable contributions of individual host plants to population-wide patterns. Evolution 65:3543-3557
Hood, G. R., and J. R. Ott. 2011. Generational shape shifting: changes in egg shape and size between sexual and asexual generations of a cyclically parthenogenic gall former. Entomologia Experimentalis et Applicata 141:88-96
Hood, G. R. and J. R. Ott. 2010. Developmental plasticity and reduced susceptibility to natural enemies following host plant defoliation in a specialized herbivore. Oecologia 162:673-683
Rose, Francis L., Thomas R. Simpson, James R. Ott, Richard W. Manning. 2010. Space use by western Cottonmouths (Agkistrodon piscivorus leucostoma) inhabiting a variable flow stream. Southwestern Naturalist 55:160-166
Rose, Francis L., Thomas R. Simpson, James R. Ott, Richard W. Manning, Julien Martin. 2010. Survival of Western Cottonmouths (Agkistrodon piscivorus leucostoma) in a Pulsing Environment.  The Southwestern Naturalist 55:11-15
Lucas, L., K., Z. Gompert, J. R. Ott, and C. C. Nice. 2009. Geographic and Genetic Isolation in Spring-Associated Eurycea Salamanders Endemic to the Edward’s Plateau Region of Texas. Conservation Genetics 10: 1309-1316
Egan. S. E. and J. R. Ott. 2007. Host plant quality and local adaptation determine the distribution of a gall-forming herbivore. Ecology 88: 2868-2879.


  • Ph.D. University of Maryland                 1990
  • M.S.  North Carolina State University     1983
  • B.S.  George Mason University             1980