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Filtering by: Subject Forest birds Decade 1980-1989

Habitat use and densities of cavity-nesting birds in the Oregon Coast Range

Creator:

Nelson, S. Kim

Abstract:

I studied abundance patterns and habitat use of eight cavitynesting bird species in the Coast Ranges of Western Oregon during the spring and summer of 1985 and 1986. Three age classes of unmanaged Douglas-fir (Pseudotsuga menziesii) stands were selected for study: young (40-80 yrs), mature (80-200 yrs), and old-growth (>200...

Resource Type:

Masters Thesis

Full Text:

I studied abundance patterns and habitat use of eight cavity- nesting bird species in the Coast
Songbird populations of precommercially thinned and unthinned stands of ponderosa pine in east-central Washington

Creator:

Putnam, Betsy June

Abstract:

Populations of breeding birds and forest composition and structure were examined in preconimercially thinned and unthinned ponderosa pine (Pinus ponderosa Laws.) stands in east-central Washington. Stands were composed of predominantly ponderosa pine with a multi-aged structure made up of small even-aged clumps. Thinning reduced the density and foliage volume of...

Resource Type:

Masters Thesis