Index Catalog // ScholarsArchive@OSU

Effects of density stress and soil productivity on size, mortality and nitrogen fixation in artificial populations of seedling red alder (Alnus rubra Bong.)

Creator:: Smith, Nicholas J.
Abstract:: Red alder (Alnus rubra Bong.) seedlings were grown at three initial spacings (8 x 8 cm, 4 x 4 cm, and 2 x 2 cm) and on two soil types (forest soil and river loam) under greenhouse and lath house conditions for 525 growing days. There were seven harvest dates,...
Resource Type:: Dissertation

The influence of induced host moisture stress on the growth and development of western spruce budworm and Armillaria ostoyae on grand fir seedlings

Creator:: Parks, Catherine G.
Abstract:: This greenhouse study evaluates the influence of separately and simultaneously imposed water stress, western spruce budworm (Choristorneura occidentalis Freeman) defoliation, and inoculation with the root pathogen, Armillaria ostoyae (Romagn.) Herink, on the growth and biochemical features of Abies .grandis (Dougl.) Lindi. Seedling biomass, plant moisture status, bud phenology, and allocation...
Resource Type:: Dissertation

Thinning aged Douglas-fir : an analysis of mobilization costs and a log bucking strategy for revenue improvement

Creator:: Pilkerton, Stephen J.
Abstract:: Contract harvest operations have become the preferred approach to reducing the largest cost component of timber production through free market competition amongst logging contractors bidding or negotiating for work. The goal of this research was to investigate economic components of harvesting operations not previously studied for steep slope thinning harvests...
Resource Type:: Dissertation
Full Text:: Improvement Abstract approved: _____________________________________________________________ Loren D

Spatial patterns of fuel management activities and their effects on wildfire behavior

Creator:: Kim, Young-Hwan
Abstract:: Fuel management has been used as an effective local strategy to reduce the undesirable consequences of wildfires. Many efforts toward scheduling of fuel management activities across a broader landscape have been proposed, with the hope of achieving larger landscape-scale management effects. However, scheduling of fuel management treatments across the broader...
Resource Type:: Dissertation
Full Text:: , Committee members, Dr. Jack Walstad, Dr. Paul Doescher, Dr. Lisa Madsen, and Dr. Starr McMullen, The

John Fiske's philosophy of science : the union of science and religion through the principle of evolution

Creator:: Lester, Jacob Franklin
Abstract:: Modern science was produced by a Christian society, and although science has had an effect on Christianity, it could not itself remain unaffected. In the second half of the nineteenth century, the subject of evolution was as much a religious as a scientific issue. The battle line was drawn and...
Resource Type:: Dissertation
Full Text:: , John Fiske: The Evolution of a Popularizer (Cambridge: Harvard University Press, 1961); Patrick D

Temporal and spatial variability in the Endeavour Ridge neutrally buoyant hydrothermal plume : patterns, forcing mechanisms and biogeochemical implications

Creator:: Roth Franks, Sharon
Abstract:: Time series records of horizontal current velocity, temperature, light attenuation and settling particle flux obtained using moored instruments above Endeavour Ridge in the northeast Pacific Ocean elucidate the dynamics of a deep-sea, neutrally buoyant, hydrothermal plume. Data collected in four mooring deployments over three years within 20 km of an...
Resource Type:: Dissertation

Competitive interactions between Douglas-fir or ponderosa pine and whiteleaf manzanita

Creator:: White, Diane E.
Abstract:: Juvenile Douglas-fir, ponderosa pine, and whiteleaf manzanita growth in southwest Oregon varied with density of co-developing manzanita and presence of herbaceous cover. Plant xylem pressure potential and stomatal conductance of each species was responsive to competition-induced depletion of soil water. Rates varied among species. The best correlations with growth usually...
Resource Type:: Dissertation

Managing for landscape resilience in the frequent-fire forests of central Oregon

Creator:: Platt, Emily K.
Abstract:: Wildfire in dry, frequent-fire forests is a pressing issue for natural resource managers, communities and politicians in the western United States. Area affected by wildfire has climbed steadily over the last twenty years and is expected to increase in the future. Recognition of the importance of both social and biophysical...
Resource Type:: Dissertation
Full Text:: : ____________________________________________________ John D. Bailey Wildfire in dry, frequent-fire forests is a pressing issue for natural

Large-D limit for correlation methods in atoms

Creator:: Summerfield, John H.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF John H. Summerfield for the degree

John Archibald Wheeler : a study of mentoring in modern physics

Creator:: Christensen, Terry M.
Abstract:: This dissertation has two objectives. The first objective is to determine where best to situate the study of mentoring (i.e. the 'making of scientists') on the landscape of the history of science and science studies. This task is accomplished by establishing mentoring studies as a link between the robust body...
Resource Type:: Dissertation
Full Text:: of Science on April 3, 2009. Title: John Archibald Wheeler: A Study of Mentoring in Modern Physics

ScholarsArchive@OSU

Effects of density stress and soil productivity on size, mortality and nitrogen fixation in artificial populations of seedling red alder (Alnus rubra Bong.)

The influence of induced host moisture stress on the growth and development of western spruce budworm and Armillaria ostoyae on grand fir seedlings

Thinning aged Douglas-fir : an analysis of mobilization costs and a log bucking strategy for revenue improvement

Spatial patterns of fuel management activities and their effects on wildfire behavior

John Fiske's philosophy of science : the union of science and religion through the principle of evolution

Temporal and spatial variability in the Endeavour Ridge neutrally buoyant hydrothermal plume : patterns, forcing mechanisms and biogeochemical implications

Competitive interactions between Douglas-fir or ponderosa pine and whiteleaf manzanita

Managing for landscape resilience in the frequent-fire forests of central Oregon

Large-D limit for correlation methods in atoms

John Archibald Wheeler : a study of mentoring in modern physics

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