Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Black bear population modeling

Twenty-two year old male Maine black bear


April 2012 - April 2015


This project uses multiple long-term (30+ years) data sets from radio-telemetry of female bears, mark-recapture of female and male bears, den-site visits, and harvest data to estimate demographic parameters and population change rates; to predict population trajectories; to evaluate the effectiveness of the Maine Department of Inland Fisheries and Wildlife’s current bear monitoring program and population estimates; and to determine whether alternative research and monitoring methods are appropriate.


Current Staff

Federal Staff: 95

Masters Students: 239

Phd Students: 144

Post Docs: 55

University Staff: 239

5 Year Summary

Students graduated: 670

Scientific Publications: 1897

Presentations: 4202



  • Shawn McKinneyPrincipal Investigator
  • Daniel LindenStudent

Funding Agencies

  • Maine Department of Inland Fisheries and Wildlife


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey