Ecosystem services in Iowa agricultural catchments: Hypotheses for scenarios with water quality wetlands and improved tile drainage

Mark E. Mitchell is a postdoctoral researcher at the Oak Ridge Institute for Science and Education (ORISE) Research Participation Program, US Environmental Protection Agency (USEPA), Cincinnati, Ohio. Shawn Dayson Shifflett is a physical scientist at the Office of Chemical Safety and Pollution Prevention, USEPA, Washington, DC. Tammy Newcomer-Johnson is an ecologist in the Office of Research and Development, USEPA, Cincinnati, Ohio. Andi Hodaj is an environmental engineer in the Water Enforcement and Compliance Assurance Branch, USEPA Region 5, Chicago, Illinois. William Crumpton is a university professor in the Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, Iowa. Jay Christensen is a research ecologist and Brian Dyson is an operations research analyst in the Office of Research and Development, USEPA, Cincinnati, Ohio. Timothy J. Canfield is an ecologist in the Office of Research and Development, USEPA, Ada, Oklahoma. Shawn Richmond is executive director at the Iowa Nutrient Research and Education Council, Des Moines, Iowa. Matthew Helmers is a professor in the Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, Iowa. Dean Lemke is director of Nutrient Management and Environmental Stewardship at the Iowa Nutrient Research and Education Council, Des Moines, Iowa. Matt Lechtenberg is the Water Quality Initiative coordinator in the Iowa Department of Agriculture and Land Stewardship, Des Moines, Iowa. Chris Taylor is a science liaison in the USEPA Region 7, Lenexa, Kansas. Kenneth J. Forshay is a research ecologist in the Office of Research and Development, USEPA, Ada, Oklahoma.