Cooperative Research Units
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Amphibian Occupancy and Effects of Habitat Use on Chemical Exposure in Northern Leopard Frogs (Lithobates pipens) in Iowa Prairie Pothole Wetlands


November 2013 - December 2018


Goals and Objectives:
- Determine amphibian occupancy rates in Iowa Prairie Pothole Region wetlands
- Correlate wetland habitat characteristics with amphibian species presence or absence
- Document post-breeding movement patterns of northern leopard frogs on Conservation Reserve Enhancement Program wetlands
- Assess the effect of surrounding land use practices as they contribute to chemical exposure and concentrations in northern leopard frogs


Current Staff

Federal Staff: 2

Masters Students: 2

Phd Students: 2

Post Docs: 0

University Staff: 6

5 Year Summary

Students graduated: 15

Scientific Publications: 33

Presentations: 60



  • Clay PiercePrincipal Investigator
  • Jennifer SwansonStudent

Funding Agencies

  • ARMI
  • USGS Fort Collins Science Center


Iowa Cooperative Fish and Wildlife Research Unit Cooperators

  1. Iowa Department of Natural Resources
  2. Iowa State University
  3. U.S. Fish and Wildlife Service
  4. U.S. Geological Survey
  5. Wildlife Management Institute