Our River Ecology Laboratory investigates large rivers to understand the roles of temporal, spatial, and structural heterogeneity in maintaining biodiversity and fisheries productivity. Ongoing research in the coastal rivers of the southeastern United States explores the links between floodplains and aquatic biodiversity and food webs. Research in the lowland rivers of the Amazon and Pantanal regions of South America examines the evolutionary origins and ecological significance of fish-forest interactions and fruit consumption by fish. Findings from our research inform monitoring, restoration, and Climate-Change resilience initiatives for riverine ecosystems.