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Filtering by: Date issued sim 1991-04-24 Subject Douglas fir -- Oregon -- Willamette River Valley

Cavity resources in Oregon white oak and Douglas-fir stands in the mid-Willamette Valley, Oregon

Creator:

Gumtow-Farrior, Daniel L.

Abstract:

Previous studies of bird communities in the mid-Willamette Valley, Oregon, indicated that Oregon white oak (Ouercus garryana) stands supported more cavity-using bird species than sympatric stands of Douglas-fir (Pseudotsuga menziesii). Mature Oregon oak stands are being harvested and few are regenerating. I compared cavity availability for hole-using fauna among 10...

Resource Type:

Masters Thesis