Declining flows on Georgia Floodplain Rivers

River floodplains provide numerous ecosystem services to people, including maintaining water quality and enhancing valuable biodiversity. Flows rates in Georgia Rivers are declining, and consequently flood pulses that connect the river channel with its floodplain are declining in frequency and magnitude. These flood pulse are crucially important ecological controls to both the river channel and the floodplain, and thus how these linked ecosystems function is changing. UGA entomologists are assessing how flood pulses of different magnitudes influence the ecology of Georgia floodplains, and their adjacent river channels, using measurements of water quality and assessment of macroinvertebrates known to be useful indicators of environmental health. Knowledge about how flood pulses affect river and floodplain ecology will help people tasked with managing aquatic resources develop sound water management plans.