Work in our lab focuses on the conservation and sustainable management of freshwater fish diversity, understanding reasons for its decline, and developing approaches for mitigating threats in Tennessee, the southeastern U.S., the Great Plains, and beyond. We address questions regarding species- and community-level change across spatial and temporal scales using a variety of study approaches, including meta-analyses, field experiments, natural snapshot and trajectory experiments, landscape modeling, and molecular techniques. Our work strongly emphasizes how anthropogenic environmental manipulations, either destructive or restorative in nature, cause shifts in fish abundance, distribution, and community structure.