Ph.D., Michigan State University, 1980.
| Mail: |
Dept.
of Ecology, Evolution and Organismal Biology Iowa State University 353 Bessey Hall Ames, IA 50011-1020 |
| Office: Phone: Fax: E-mail: |
129 Bessey Hall (515) 294-4752 (515) 294-1337 crumpton@iastate.edu |
My current research focuses on wetland processes and functions in agricultural
landscapes, including the dynamics of energy flow and nutrient transformation
in wetlands, the fate and effects of agricultural contaminants in wetlands,
and the role of restored and constructed wetlands in water quality remediation.
Our work combines experimental studies in wetland mesocosms, field studies in
natural and restored wetlands, and dynamic simulation modeling in an effort
to understand critical processes and predict wetland performance.
Crumpton, W.G. and J.L. Baker. 1993. Integrating wetlands into agricultural drainage systems: Predictions of nitrate loading and loss in wetlands receiving agricultural subsurface drainage. Pages 118-126 in Proceedings, International Symposium on Integrated Resource Management & Landscape Modification for Environmental Protection, American Society of Agricultural Engineers publication 1993.
Crumpton, W.G., T.M. Isenhart, and S. Fisher. 1993. Transformation and fate of nitrate in wetlands receiving non point source agricultural inputs. Pages 283-299 (Chapter 29) in G.A. Moshiri (Ed) Constructed Wetlands for Water Quality Improvement, Lewis Publishers, Inc. Chelsea, MI.
Phipps, R.G., and W. G. Crumpton. 1994. Factors affecting nitrogen loss in experimental wetlands with different hydrologic loads. Ecological Engineering, 3:399-408.
Crumpton, W.G., J.L. Baker, J. Owens, C. Rose, and J. Stenback. 1995. Wetlands and streams as off-site sinks for agricultural chemicals. Pages 49-53 in Clean Water-Clean Environment-21st Century, Volume I: Pesticides, American Society of Agricultural Engineers publication 295.
Kimber, A., J.L. Owens, and W.G. Crumpton. 1995. Light availability and growth of wildcelery (Vallisneria americana) in Upper Mississippi River backwaters. Regulated Rivers: Research and Management, 11:167-174.
Owens, J.L. and W.G. Crumpton. 1995. Primary production and light dynamics in an Upper Mississippi River backwater. Regulated Rivers: Research and Management, 11:185-192.
Rose, C. and W.G. Crumpton. 1996. Effects of emergent macrophytes on dissolved oxygen dynamics in a prairie pothole wetland. Wetlands, 16:495-502..
Crumpton, W.G. and L.G. Goldsborough. 1998. Nitrogen transformation and fate in prairie wetlands. Great Plains Research, 8:57-72.
Goldsborough, L.G. and W.G. Crumpton. 1998. Distribution and environmental fate of pesticides in prairie wetlands. Great Plains Research, 8:73-95.
Lemly, A.D., G.R. Best, W.G. Crumpton, M.G. Henry, D.D. Hook, G.L. Linder, P.H. Masscheleyan, H.G. Peterson, T. Salt, and R.G. Stahl, Jr. 1999. Contaminant fate and effects in freshwater wetlands. pp. 69-151 in M.A. Lewis, F.L. Mayer, R.L. Powell, M.K. Nelson, S.J. Klaine, M.G. Henry, and G.W. Dickson (Eds) Ecotoxicology and Risk Assessment for Wetlands. SETAC Pellston Workshop on Ecotoxicology and Risk Assessment for Wetlands; 30 Jul-3 Aug 1995; Anaconda MT. Society of Environmental Toxicology and Chemistry, Pensacola, FL 375 p.
Kimber, A., W.G. Crumpton, T.B. Parkin, and M.H. Spalding. 1999. Sediment as a carbon source for the submersed macrophyte Vallisneria. Plant, Cell and Environment. (accepted).
Beauvais, S.L., G.J. Achison, J.Z. Stenback, and W.G. Crumpton. 2000. Use of cholinesterase activity to monitor exposure of Chironomus riparius (Diptera: Chironomidae) to a pesticide mixture in hypoxic wetland mesocosms. Hydrobiologia. (accepted)