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Notes: Spatial Attack Pattern of a Western Washington Douglas-Fir Beetle Population

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Abstract:

Spatial attack pattern of the Douglasfir beetle, Dendroctonus pseudotsugae Hopkins, was investigated using R, the distance to the nearest neighbor, and I⊂, Morisita's index of dispersion. The attack pattern on 15 trees was shown to be uniform, and although the mechanisms directly controlling attack spacing were not investigated, a hypothesis involving bark distribution, sonic interaction, and short-range repellent pheromones is presented. Forest Sci. 22: 100-102.

Keywords: Dendroctonus; host colonization; index of dispersion

Document Type: Miscellaneous

Affiliations: Professor, College of Forest Resources, University of Washington, Seattle, WA 98195

Publication date: 1976-03-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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