Index Catalog // ScholarsArchive@OSU

Time and distance to clear wood in pruned red alder saplings

Creator:: DeBell, Dean S., Harrington, Constance A., Gartner, Barbara L., and Singleton, Ryan
Abstract:: This paper was published in: Deal, R.L. and C.A. Harrington, eds. 2006. Red alder—a state of knowledge. General Technical Report PNW-GTR-669. Portland, OR: U.S. Department of Agriculture, Pacific Northwest Research Station. 150 p.
Resource Type:: Technical Report
Full Text:: . General Technical Report PNW-GTR-669. Portland, OR: U.S. Department of Agriculture, Pacific Northwest

The influence of forest management on headwater stream amphibians at multiple spatial scales

Creator:: Stoddard, Margo A.
Abstract:: To effectively manage for biodiversity at broad, ecosystem scales, the influences of habitat structure at multiple spatial scales on vertebrate species must be understood. There are few studies on the broad-scale habitat requirements of stream amphibians despite their importance in streams in forest ecosystems in the Pacific Northwest (PNW) as...
Resource Type:: Masters Thesis
Full Text:: forest ecosystems in the Pacific Northwest (PNW) as predators and prey, and potentially as indicators

The effect of local stand structure on growth and growth efficiency in heterogeneous stands of ponderosa pine and lodgepole pine in central Oregon

Creator:: Mainwaring, Douglas B. and Maguire, Douglas A. (Douglas Alan)
Abstract:: Basal area and height growth were analyzed for individual trees in uneven-aged ponderosa pine (Pinus ponderosa Dougl. ex Laws.) and lodgepole pine (Pinus contorta Dougl. ex. Loud.) stands in central Oregon. Basal area growth was modeled as a function of other stand and tree variables to address three general objectives:...
Resource Type:: Article

Influence of light and soil moisture on Sierran mixed-conifer understory communities

Creator:: North, Malcolm, Oakley, Brian, Fiegener, Rob, Gray, Andrew, and Barbour, Michael
Abstract:: Sierra Nevada forests have high understory species richness yet we do not know which site factors influence herb and shrub distribution or abundance. We examined the understory of an old-growth mixed-conifer Sierran forest and its distribution in relation to microsite conditions. The forest has high species richness (98 species sampled),...
Resource Type:: Article
Full Text:: Horticulture, University of California, Davis, CA 95616, USA; 4Forest Inventory and Analysis, PNW Research

Re‐establishment of the native oyster, Ostrea conchaphila, in Netarts Bay, Oregon, USA

Creator:: Archer, Pamela Emily
Abstract:: Olympia oysters, “Ostrea conchaphila,” were once common along the west coast of North America. A popular delicacy, native oyster populations began to decline in the late 1800’s due to over‐harvest, degraded water quality, and habitat loss. Interest in re‐establishing the native oyster in a small Oregon estuary, Netarts Bay, culminated...
Resource Type:: Masters Thesis
Full Text:: initiate restoration projects within the Pacific Northwest (PNW). Most estuaries in the PNW have large

Recruiting and supporting Latino volunteers

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Hobbs, Beverly B., and Pacific Northwest Cooperative Extension
Abstract:: Communities across the United States are becoming more culturally and ethnically diverse. Indeed, demographers predict that by 2030 most of America’s school-age children will be from a minority group and by 2050, so will most Americans. This increasing diversity changes the nature of the population served by volunteer-based organizations, and...
Resource Type:: Technical Report
Full Text:: Latino RECRUITING AND SUPPORTING Latino Volunteers PNW

Early maturing males in a partially migratory population of anadromous and resident rainbow trout Oncorhynchus mykiss: influences of individual condition and stream temperature

Creator:: McMillan, John R.
Abstract:: Alternative male phenotypes in salmonine fishes arise from individuals that mature as either larger and older anadromous marine-migrants or as smaller and younger freshwater residents. Variability in age and size of males at maturity is hypothesized to be preceded by early differences in growth in size and lipid storage. Water...
Resource Type:: Masters Thesis
Full Text:: funding for this project was primarily provided by NOAA Fisheries, USDA Forest Service PNW Research

Soil compaction in central Oregon volcanic ash soils and the subsequent effects on residual ponderosa pine growth

Creator:: Parker, Robert T.
Abstract:: Although previous research in central Oregon has shown soil compaction can lead to a decline in site productivity, the subject is not understood well enough to predict the growth changes resulting from a given level of soil compaction. A study was initiated to relate the basal area, height and volume...
Resource Type:: Masters Thesis

Habitat relationships of small terrestrial vertebrates and invertebrates in managed forests in the southern Oregon Cascades

Creator:: McDade, Kirsten Ayn
Abstract:: Silviculture systems that involve commercial thinning may provide higher quality wildlife habitat than traditional clearcut systems, yet such systems have not been vigorously tested. This prospective study examined forest floor animal abundance and habitat relationships under three different silviculture conditions: clearcuts, commercial thins, and uncuts. Eighteen stands, six per treatment,...
Resource Type:: Masters Thesis

Life-history and physiological trade-offs to reproduction of invasive and noninvasive Rubus

Creator:: McDowell, Susan C.
Abstract:: The goal of this dissertation was to improve our understanding of the physiology and life-history of invasive plants and of the mechanisms underlying life-history trade-offs. I compared invasive and noninvasive species of Rubus (blackberry) that grow together in the Pacific Northwest. Three hypotheses were investigated: (1) Invasive Rubus have higher...
Resource Type:: Dissertation

ScholarsArchive@OSU

Time and distance to clear wood in pruned red alder saplings

The influence of forest management on headwater stream amphibians at multiple spatial scales

The effect of local stand structure on growth and growth efficiency in heterogeneous stands of ponderosa pine and lodgepole pine in central Oregon

Influence of light and soil moisture on Sierran mixed-conifer understory communities

Re‐establishment of the native oyster, Ostrea conchaphila, in Netarts Bay, Oregon, USA

Recruiting and supporting Latino volunteers

Early maturing males in a partially migratory population of anadromous and resident rainbow trout Oncorhynchus mykiss: influences of individual condition and stream temperature

Soil compaction in central Oregon volcanic ash soils and the subsequent effects on residual ponderosa pine growth

Habitat relationships of small terrestrial vertebrates and invertebrates in managed forests in the southern Oregon Cascades

Life-history and physiological trade-offs to reproduction of invasive and noninvasive Rubus

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