Ecosystem thresholds and alternate states in Great Plains rivers and streams: Cascading effects of anthropogenic hydrologic disturbanceDodds, Walter⋅With, Kimberly⋅Gido, Keith and Koellicker, JamesEnvironmental Protection Agency, Science to Achieve Results, Understanding Ecological Thresholds Through Retrospective Analysis (ID: GOB0600105), $299,566USD, 07/11/2005 -- 07/10/2008