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Filtering by: Subject Douglas fir -- Diseases and pests -- Washington (State), Western Creator University of Washington

The analysis of the spatial attack pattern of an endemic Douglas-fir beetle population

Creator:

Hedden, Roy L., Gara, Robert I., U.S. International Biological Program. Coniferous Forest Biome, and University of Washington

Abstract:

The attack spatial pattern of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins was shown to be regular within a given subarea of bark on its host, Pseudotsugae menziesii (Mirb.) Franco. Empirical arguments were advanced which indicated the uniform spacing of attacks was the result of a beetle controlled spacing mechanism dependent...

Resource Type:

Technical Report

Full Text:

the Douglas-fir beetle (see previous Internal Report), and no published study has dealt with the
The analysis of the attack distribution of an endemic Douglas-fir beetle population

Creator:

Hedden, Roy L., Gara, Robert I., U.S. International Biological Program. Coniferous Forest Biome, and University of Washington

Abstract:

Felled second-growth Douglas-fir trees in western Washington were used to determine the attack distribution and develop a sampling technique for an endemic Douglas-fir beetle, Dendroctonue peeudotaugae Hopk. (Coleoptera: Scolytidae) population. The attack density varied by circumferential position. The lowest density was on the upper bole and the highest on one...

Resource Type:

Technical Report

Full Text:

western Washington were used to determine the attack distribution and develop a sampling technique for an
The role of insects in the consumer-decomposer interface of Douglas-Fir

Creator:

Gara, Robert I., Dreyup, M., Hedden, Roy L., Merrifield, L. E., Souto, D., U.S. International Biological Program. Coniferous Forest Biome, and University of Washington

Resource Type:

Technical Report

Full Text:

-DECOMPOSER INTERFACE OF DOUGLAS-FIR R. 1. Gara, M. Dreyup, R. L. Hedden, L. E. Merrifield, and D. Souto

ScholarsArchive@OSU

The analysis of the spatial attack pattern of an endemic Douglas-fir beetle population

The analysis of the attack distribution of an endemic Douglas-fir beetle population

The role of insects in the consumer-decomposer interface of Douglas-Fir

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