Increasing human demand for freshwater has affected flow seasonality and volume of rivers around the world.  The Apalachicola River drainage with records of over 330 species of birds is examined to document how river health affects birdlife.  

After receiving his PhD at FSU in 1986, Todd Engstrom's first job was with the Cornell Laboratory of Ornithology working on avian monitoring programs.  He came back to Tallahassee to be a staff ecologist at Tall Timbers Research Station, where he focused on conservation biology of the Red-cockaded Woodpecker, response of vertebrate populations to prescribed fire, and animal communities in old-growth longleaf pine forests.

He left Tall Timbers to direct the Greenwood Project for The Nature Conservancy in Thomasville, Georgia, and, after conducting a search for the Ivory-billed Woodpecker on the Apalachicola River, he had a short stint as Associate Director of the Florida State University Coastal and Marine Laboratory.  Currently he is an independent researcher and a Research Associate at Tall Timbers Research Station and Land Conservancy and Courtesy Faculty in the Department of Biological Science at Florida State University.