Index Catalog // ScholarsArchive@OSU

Effects of canopy gaps in Douglas-fir forests and resource gradients on fecundity and growth of understory herbs

Creator:: St. Pierre, Elizabeth A. (Elizabeth Ann)
Abstract:: Effects of small-scale disturbances on fecundity and growth rates of Linnaea borealis L., Tiarella trifoliata L. var. unifoliata, and Trillium ovatum Pursh. were studied in old-growth forests in the Tsuga heterophylla Zone on the west slope of the Cascade Mountain Range of Oregon. Performance of each species was compared in...
Resource Type:: Dissertation

Spatial distribution of understory vegetation in tree canopy gaps of the Pacific Northwest

Creator:: London, Sharon Gail
Abstract:: Understory vegetation in artificially created tree canopy gaps in the Pacific Northwest was studied to determine 1) variation in understory vegetation cover between gap edges and gap centers, as well as between control and treatment plots, 2) spatial patterns of biomass and difference in biomass patterns among plots, 3) individual...
Resource Type:: Masters Thesis

Exploration of statistical methods for synthesizing the effects of variable-retention harvesting on multiple taxa

Creator:: Lam, Tzeng Yih
Abstract:: Variable-retention harvesting was proposed to reduce loss of biodiversity and ecosystem processes associated with late-seral Douglas-fir (Pseudotsuga menziesii) forests in the Pacific Northwest. The Demonstration of Ecosystem Management Options experiment was established to test this hypothesis. Analysis presents various challenges to drawing statistical inferences about treatment effects. This dissertation explored...
Resource Type:: Dissertation
Full Text:: in the Pacific Northwest. The Demonstration of Ecosystem Management Options experiment was

Aquatic plants of the Pacific Northwest, with vegetative keys

Creator:: Steward, Albert Newton, 1897-1959, Gilkey, Helen M., 1886-1972, and Johnston, L. D. (La Rea Dennis)
Abstract:: Second edition
Resource Type:: Book
Full Text:: "Aquatic plants of the Pacific Northwest, with vegetaive

Systematic and reproductive studies of Mimulus (Scrophulariaceae) in the Pacific Northwest : implications for conservation biology

Creator:: Meinke, Robert James
Abstract:: The Mimulus washingtonensis complex is a group of morphologically similar species centered in the Pacific Northwest. All are rare, and most are under consideration for listing as endangered. Morphometric and pollination data were used in developing a revised taxonomy for the group. Five species and two varieties are recognized. Mimulus...
Resource Type:: Dissertation
Full Text:: (Scrophulariaceae) in the Pacific Northwest : implications for conservation biology AN ABSTRACT OF THE THESIS OF

Interconnection of electric power systems in the northwest

Creator:: Valentine, Bernard Iliff
Resource Type:: Masters Thesis
Full Text:: Interconnection of electric power systems in the northwest

Fire-resistant plants for home landscapes : selecting plants that may reduce your risk from wildfire

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Detweiler, Amy Jo, Fitzgerald, Stephen Arthur, and Pacific Northwest Cooperative Extension
Abstract:: In the Pacific Northwest, fires are a natural part of the changing landscape. As homeowners continue to build in the wildland-urban interface, they must take special precautions to protect their lives, homes, and property.
Resource Type:: Technical Report
Full Text:: from wildfi re FIRE-RESISTANT PLANTS FOR HOME LANDSCAPES A Pacifi c Northwest Extension publication

Trees, snow and flooding: an investigation of forest canopy effects on snow accumulation and melt at the plot and watershed scales in the Pacific Northwest

Creator:: Storck, Pascal
Abstract:: Concerns about the extent to which major Pacific Northwest floods over the last decade might have been exacerbated by logging have heightened the need for a better scientific understanding of the role of forest maturity on snow accumulation and melt. To address this need, a multi-scale field and modeling study...
Resource Type:: Technical Report

Analyzing patterns of woody plant richness at multiple spatial scales with modeled photosynthesis

Creator:: Swenson, Jennifer J.
Abstract:: The hump-shaped relationship that predicts highest species richness (species/unit area) at intermediate levels of productivity was examined for woody plants across the Pacific and Inland Northwest of the U.S. Many studies have examined this relationship at regional scales, but commonly use species range maps and surrogate measures of productivity (e.g....
Resource Type:: Dissertation

Responses of Pacific Northwest prairies to soil nutrient manipulations : implications for restoration of Castilleja levisecta and control of invasive species

Creator:: Lawrence, Caitlin E.
Abstract:: Pacific Northwest prairies have become significantly reduced in extent, and in the Willamette Valley of Oregon, less than one percent of native upland prairies remain. Many species have been impacted by this extreme loss of habitat, including Castilleja levisecta (golden paintbrush), a threatened hemiparasitic forb species endemic to the Pacific...
Resource Type:: Masters Thesis
Full Text:: and Plant Pathology presented on February 18, 2015 Title: Responses of Pacific Northwest prairies

ScholarsArchive@OSU

Effects of canopy gaps in Douglas-fir forests and resource gradients on fecundity and growth of understory herbs

Spatial distribution of understory vegetation in tree canopy gaps of the Pacific Northwest

Exploration of statistical methods for synthesizing the effects of variable-retention harvesting on multiple taxa

Aquatic plants of the Pacific Northwest, with vegetative keys

Systematic and reproductive studies of Mimulus (Scrophulariaceae) in the Pacific Northwest : implications for conservation biology

Interconnection of electric power systems in the northwest

Fire-resistant plants for home landscapes : selecting plants that may reduce your risk from wildfire

Trees, snow and flooding: an investigation of forest canopy effects on snow accumulation and melt at the plot and watershed scales in the Pacific Northwest

Analyzing patterns of woody plant richness at multiple spatial scales with modeled photosynthesis

Responses of Pacific Northwest prairies to soil nutrient manipulations : implications for restoration of Castilleja levisecta and control of invasive species

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