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Project ID: 05-2-1-92

Year: 2005

Date Started: 08/04/2005

Date Completed: 08/21/2008

Title: Why Burning Brings Beetles: Fire-Bark Beetle Interactions

Project Proposal Abstract: Old-growth ponderosa pine have been observed across the West to be dying in greater than expected numbers from the reintroduction of prescribed fire, even with the fires are within expected intensity limits. Mortality is via bark beetles 2-4 years after burning. These trees are important forest structural elements that are important to retain as live trees after fuel treatments. Previous work hinted that season of burning may be responsible, and a previous demonstration project in our area documented mortality in the first two years after burning. This project will carry forward the measurement activity on over 1800 large ponderosa pines, investigate beetle defenses via resin flow measurements, and couple resin flow and quality data to actual mortality. Experimental treatment of trees via burning and artificial pruning and root damage, with associated resin measurements, will attempt to understand these effects as they occur. Results will be linked to management practices and disseminated through a variety of technology transfer outlets.

Principal Investigator: James K. Agee

Agency/Organization: University of Washington

Branch or Dept: School of Forest Resources

Other Project Collaborators




Branch or Dept

Federal Cooperator

David L. Peterson

Forest Service

PNW-Seattle-Managing Natural Disturbances

Project Locations

Fire Science Exchange Network


There are no project locations identified for this project.

Project Deliverables

Final Report view or print

("Results presented in JFSP Final Reports may not have been peer-reviewed and should be interpreted as tentative until published in a peer-reviewed source.")

  ID Type Title
view or print   3058 Journal Article Canadian Journal of Forest Research
view or print   2946 Journal Article Forest Ecology and Management

Supporting Documents

The following supporting documents are available for this project.

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