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Jason Knouft, Ph.D.


Courses Taught

Biogeography, GIS in Biology, Advanced Ecology


Ph.D., University of Illinois 

Research Interests

Current research interests are primarily focused on the effects of human activities (e.g., climate and land use change) on watershed hydrology, water quality, and the distribution of aquatic taxa across multiple spatial scales. A goal of this work is to develop hydrologically-based GIS applications for the study of aquatic biodiversity.

Labs and Facilities

Further information can be found at

Publications and Media Placements

Ficklin, D. L., Abatzoglou, J. T., Robeson, S. M., Null, S. E., and Knouft, J. H. 2018. Natural and managed watersheds show similar responses to recent climate change. Proceedings of the National Academy of Sciences 115:8553-8557.

Knouft, J. H.and Ficklin, D. L.  2017.  The potential impacts of climate change on biodiversity in flowing freshwater systems.  Annual Review of Ecology, Evolution, and Systematics 48:111-133.

Michel, M. J., Chien, H., Beachum, C. E., Bennett, M., and Knouft, J. H.  2017.  Climate change, hydrology, and fish morphology: predictions using phenotype-environment associations.  Climatic Change 140:563-576.

Knouft, J. H. and Anthony, M. M.  2016.  Climate and local abundance in freshwater fishes.  Royal Society Open Science 3:160093.

Ficklin, D. L., Robeson, S. M., and Knouft, J. H.  2016.  Impacts of recent climate change on trends in baseflow and stormflow in United States watersheds.  Geophysical Research Letters 43:5079-5088.

Knouft, J. H. and Chu, M. L.  2015.  Using watershed-scale hydrological models to predict the impacts of increasing urbanization on freshwater fish assemblages.  Ecohydrology 8:273-285.

Michel, M. J., Chevin, L-M., and Knouft, J. H.  2014.  Evolution of phenotype-environment associations by genetic responses to selection and phenotypic plasticity in a temporally autocorrelated environment.  Evolution 68:1374-1384.

Chien, H., Yeh, P. J., and Knouft J. H.  2013.  Modeling the potential impacts of climate change on streamflow in agricultural watersheds of the Midwestern United States.  Journal of Hydrology 491:73-88.

Knouft, J. H. and Page, L. M.  2011.  Climate, elevation, stream channel diversity, and geographic clines in species richness of North American freshwater fishes.  Journal of Biogeography 38:2259–2269.

Knouft, J. H., Caruso, N. M., Dupre, P. J., Anderson, K. A., Trumbo, D. R., and Puccinelli, J.   2011.  Using fine-scale GIS data to assess the relationship between intra-annual environmental niche variability and population density in a local stream fish assemblage.  Methods in Ecology and Evolution 2:303-311.

Knouft, J. H., Losos, J. B., Glor, R. E., and Kolbe J. J.  2006.  Phylogenetic analysis of the evolution of the niche in lizards of the Anolis sagrei group.  Ecology 87:S29-S38.

Knouft, J. H. and Page, L. M.  2003.  The evolution of body size in extant groups of North American freshwater fishes: speciation, size distributions, and Cope’s rule.  The American Naturalist 161:413-421.

Knouft, J. H.  2003.  Convergence, divergence, and the effect of congeners on body size ratios in stream fishes.  Evolution 57:2374-2382.

Knouft, J. H., Page, L. M., and Plewa, M. J.  2003.  Antimicrobial egg cleaning by the fringed darter (Perciformes: Percidae: Etheostoma crossopterum): implications of a novel component of parental care in fishes.  Proceedings of the Royal Society of London: Biological Sciences 270:2405-2411.