ExARS is USD’s Experimental Aquatic Research Site, a 22,500 square-foot facility with 24 recirculating artificial streams (each circle above and its up and downstream connector is a “stream”). What questions would you ask if you could manipulate conditions of 24 streams and sample them all in a single afternoon? Check out our publications to see some results from our experimental work.

Field Work

Ameiurus melas – Black Bullhead Photo: Enosh Kattinapudi/University of South Dakota

We typically work in aquatic ecosystems on questions related to water quality, food webs, predator-prey relationships, and aquatic-terrestrial linkages. Much of our field work takes place on the Missouri National Recreational River. Check out our publications to see some results from our field work.


We also use statistical modeling to expand the scope of our work. We spend a good deal of time ensuring that we adopt the right models for our questions, and we typically analyze those models using Bayesian statistics. All of our recent work (since about 2017) uses Bayesian. Check out our publications to see results of our modeling work. If you’re interested in how we came around to using Bayesian statistics, see Jeff’s blog post about his Journey to Bayesian Stats.

Critical Inference

A blog about the use of Statistics in science and decision making ... and scientific culture

Bayesian Spectacles

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Brian Moore

Biology Blog

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