Ecology, Evolution and Behavior

Research statement

My research broadly focuses on how environmental factors influence phenotypes of organisms, and how organisms are responding to human-caused environmental change. Currently, I am working with Elizabeth Borer and Emilie Snell-Rood to investigate how human micro- and macro-nutrient additions (sodium, nitrogen, and metals) along roadsides are affecting the nutritional quality of plants that are important for pollinators.

Selected publications

Mitchell, T.S., J.M. Hall, D.A. Warner. 2018. Female investment in offspring size and number shifts seasonally in a lizard with single-egg clutches. Evolutionary Ecology
Mitchell, T.S., E.M. Myers, J.K. Tucker, and S.E. McGaugh. 2017. Righting ability in hatchling turtles does not predict survival during dispersal in the field. Biological Journal of the Linnean Society. doi: 10.1111/bij.12896 
Mitchell, T.S., J.A. Maciel and F.J. Janzen. 2015. Maternal effects influence phenotypes and survival during early life stages in an aquatic turtle. Functional Ecology 29:268-276 
Mitchell, T.S., J.A. Maciel and F.J. Janzen. 2013. Does sex-ratio selection influence nest-site choice in a reptile with temperature-dependent sex determination? Proceedings of the Royal Society of London B 280:20132460. 
Mitchell, T.S., D.A. Warner, and F.J. Janzen. 2013. Phenotypic and fitness consequences of maternal nest-site choice across multiple early life stages. Ecology 94:336-345. 

Education and background


  • B.S. Saint Olaf College, 2007
  • Ph.D. Iowa State University, 2013
  • NSF Postdoctoral Fellowship in Biology, Auburn University, 2015-2017
  • Postdoctoral Associate, University of Minnesota, 2018-present