Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Monitoring protocol for otter and bobcat in Iowa


April 2016 - December 2019


Goals and Objectives:
- Comparing conventional population indices to statistical population reconstruction (SPR) to determine if the SPR model provides superior inferences that warrant its use as an otter and bobcat management tool.
- Performing SPR to provide estimates on otter and bobcat survival, age structure, recruitment, harvest, and population trends in Iowa.
- Using GIS to develop a river otter habitat suitability map for Iowa based on the number of otters trapped per HUC 12 watersheds as a function of land cover and landscape metrics comparable to the suitability map developed for the bobcats.
- Validating the habitat suitability map created in item 3.
- Evaluating the value of current data sources and simulating potential gains by including additional auxiliary data for use in managing Iowan furbearers.
- Publishing a final report and outlining recommendations to the Iowa DNR for future furbearer monitoring.


Current Staff

Federal Staff: 101

Masters Students: 239

Phd Students: 154

Post Docs: 55

University Staff: 241

5 Year Summary

Students graduated: 695

Scientific Publications: 1962

Presentations: 4417



Funding Agencies

  • Iowa Department of Natural Resources


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey