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Creator:: Marcot, Bruce G.
Abstract:: Ninety-one species of birds were surveyed in grass/forb, early and late shrub/sapling, pole, and medium sawtimber stages of young-growth Douglas-fir in northwestern California; patterns of bird distribution and abundance were related to habitat conditions and even-age silvicultural treatments. Seven species (band-tailed pigeon, western wood pewee, dusky flycatcher, western bluebird, fox...
Resource Type:: Dissertation
Full Text:: flycatcher, chestnut-backed chickadee, red-breasted nuthatch, brown creeper, golden-crowned kinglet, and

Creator:: Yang, Jenq-chuan
Abstract:: Genetic variability in natural populations of Douglas-fir was studied at molecular level by investigating the variations of some primary gene products, i. e. enzymes. Using the techniques of disc gel electrophoresis and biochemical staining, the isoenzyme patterns of leucine aminopeptidase, esterase and glutamate oxaloacetate transaminase are characterized in young seedlings...
Resource Type:: Dissertation
Full Text:: exhibited varying frequencies in most seed sources, Durzan and Chalupa (1968) showed that jack pine (Pinus

Creator:: Lavender, Denis Peter, 1926-
Resource Type:: Dissertation
Full Text:: in organic material (table 3). This soil is c. well-drained, reddish brown lateritic soil derived

Creator:: Hermann, Richard K.
Resource Type:: Dissertation
Full Text:: 1955. The soil on this slope is a well -drained Brown Lato- sol, and was tentatively classified as

Creator:: Thomas, Byron R.
Abstract:: Relationships between soil-water stress and plant-moisture stress were studied with respect to soil classification and cambial activity in Douglas-fir. The study sites were forested with Douglas-fir and located in McDonald Forest and near Marys Peak in the Oregon Coast Range. Soil-water depletion was followed by the use of gypsum blocks...
Resource Type:: Dissertation
Full Text:: soils have a very dark, grayish browh clay A horizon and very dark brown clay Bt horizons. The upper

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