Index Catalog // ScholarsArchive@OSU

An analysis of the import demand for hard red winter and western white wheat in Asian Pacific rim nations

Creator:: Simone, Mark V.
Abstract:: Wheat is a major agricultural product in the Pacific Northwest (PNW). The market class primarily grown in the region is Western White (WW) wheat. An important export market for PNW wheat producers is the Asian Pacific Rim (APR), due to its proximity and economic growth. Agronomic research has been conducted...
Resource Type:: Masters Thesis
Full Text:: /leV «—f—^ — \> Wheat is a major agricultural product in the Pacific Northwest (PNW). The market

Functional Comparison of Longline Oyster Aquaculture and Eelgrass (Zostera marina L.) Habitats Among Pacific Northwest Estuaries, USA

Creator:: Clarke, Larissa M.
Abstract:: Understanding the ecological role of Pacific oyster aquaculture (Crassostrea gigas) and eelgrass (Zostera marina L.) as important habitats in US Pacific Northwest estuaries is critical for management and regulatory decisions. The oyster aquaculture industry is currently restricted by regulations concerning impacts of their activities on Z. marina. This seagrass is...
Resource Type:: Masters Thesis
Full Text:: important role in PNW estuaries. ©Copyright by Larissa M. Clarke July 19

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

Novel methods for crop load management of pear cultivars in the Pacific Northwest

Creator:: Arrington, Matthew A.
Abstract:: Novel approaches to crop load management of pear orchards in the Pacific Northwest (PNW) are necessary, but will need to vary according to the unique vegetative and reproductive growth habits of the cultivar. 'D'Anjou' is vigorous and non-precocious; thus, strategies to limit vigor and induce early fruiting are required. In...
Resource Type:: Masters Thesis
Full Text:: pear orchards in the Pacific Northwest (PNW) are necessary, but will need to vary according to the

Long-term Effects of Vegetation Management on Plant and Soil Derived Nutrient Budgets for Plantations of Four Western Conifer Species

Creator:: Callan, Cannon F.
Abstract:: Forest Vegetation Management (VM) is an important tool used in the Pacific Northwest (PNW) for reforestation. It has been well documented that VM increases seedling survival and crop tree volume growth. What is less understood, is how altering the plant community and successional trajectory affects the way the ecosystem uses...
Resource Type:: Masters Thesis
Full Text:: Pacific Northwest (PNW) for reforestation. It has been well documented that VM increases seedling

Life-cycle inventory of plywood manufacturing in the Pacific Northwest and the Southeast United States

Creator:: Sakimoto, Eric T.
Abstract:: Softwood plywood is one of the structural wood products studied in the CORRIM II effort to document the environmental performance of wood product in residential structures. Life-cycle inventory (LCI) models were developed to provide performance data for plywood production by tracking all of its inputs and outputs in a gate-to-gate...
Resource Type:: Masters Thesis
Full Text:: 10 MATERIALS AND METHODS 11 Plywood model description for the PNW and SE 11 Softwood plywood

Habitat Use of Female Columbian Black-tailed Deer in Western Oregon

Creator:: Schrautemeier, Timothy J.
Abstract:: Columbian black-tailed deer (Odocoileus hemionus columbianus) are important economically, ecologically, and culturally as an indigenous species in western Oregon. Oregon Department of Fish and Wildlife (ODFW) observed declines in black-tailed deer populations since the late 1980’s and attributes these declines to reduction in quality and availability of habitat, following the...
Resource Type:: Masters Thesis
Full Text:: establishment), including agriculture (Ag.), developed (Dev.), forest ages up to 474 years (e.g., FA 0-3 Yrs

Assessment of the vulnerability of Oregon and Washington's natural areas to climate change

Creator:: Margaret, Massie H.
Abstract:: There are currently more than 580 natural areas in Oregon and Washington managed by 20 federal, state, local, and private agencies and organizations. The natural areas network is unparalleled in its representation of diverse ecosystems found in the region and may be an excellent collection of sites for monitoring long-term...
Resource Type:: Masters Thesis
Full Text:: Overall area of predicted change of formation class from the 2020s to 2080s across the PNW

The use of motor carrier weigh station reports in commodity flow analysis of the Oregon forest products industry - 1976

Creator:: Howes, Edwin R.
Abstract:: Data on motor carrier commodity weights collected in 1976 at Oregon weigh stations by the Public Utilities Commission and the Department of Transportation are not in a form that readily allows for commodity flow analysis. A methodology is presented that reduces existing forest product commodity data into a graphically displayed...
Resource Type:: Capstone Project

Systematics of Pacific Northwestern species of the genus Gymnomyces inferred from nuclear ribosomal DNA internal transcribed spacer sequences

Creator:: Whitbeck, Kristen L.
Abstract:: Gymnomyces is an ectomycorrhizal basidiomycete genus in the family Russulaceae estimated to contain less than 50 species worldwide, with 23 species known to occur in the Pacific Northwest. Gymnomyces species are common in Pacific Northwest forests that include Pseudotsuga, Abies, Tsuga, and Quercus. They produce sequestrate (truffle-like) sporocarps with ornamented...
Resource Type:: Masters Thesis
Full Text:: the soil in the Pacific Northwest (PNW) (Luoma et al., 1991). Sporocarps resemble minute potatoes

A Multi-Spatial Scale Economic Analysis of the Impacts of Bear Damage to Douglas-fir on Private Timberlands in the Pacific Northwest

Creator:: Kline, Kristina N.
Abstract:: Black bears (Ursus americanus) in western Oregon and Washington peel bark from conifers in early spring to forage on the sugar-rich phloem and cambial tissues. This provides important energy at a time when similarly attractive forage is scarce. Bears often damage Douglas-fir (Pseudotsuga menziesii) trees in stands that are intensively...
Resource Type:: Masters Thesis
Full Text:: Pacific Northwest forests. USDA Forest Service General Technical Report PNW-GTR-287. Portland, Oregon

Twenty-five years of grazing research at Meadow Creek in the Starkey Experimental Forest and Range

Creator:: Walburger, Kenric
Abstract:: Three studies were conducted to evaluate different grazing systems on mixed conifer rangelands in eastern Oregon, and photo points and aerial photography was used to determine effects of 25 years of cattle grazing on stream channel changes and vegetation responses. The first study was designed to determine if grazing treatment...
Resource Type:: Masters Thesis
Full Text:: the creek in 1990, by the LaGrande Range District as part of a PNW Research Station project, to

Characteristics of forests at spotted owl nest sites in the Pacific Northwest

Creator:: Hershey, Kit
Abstract:: This study describes the composition and structure of forests within the immediate vicinity of Northern spotted owl (Strix occidentalis caurina) nest sites in the Klamath, Coast, and Cascade provinces of western Oregon and the Olympic province, Washington. I compared forest stand data collected at 105 nest sites with data from...
Resource Type:: Masters Thesis
Full Text:: special thanks to Eric Forsman and his PNW crews: Ivy Otto, Rich Lowell, Pete Loschl, Janice Reid, and

Bird-vegetation relationships across ten years after thinning in young thinned and unthinned Douglas-fir forests

Creator:: Yegorova, Svetlana
Abstract:: Bird-vegetation associations are a base for bird conservation and management, as well as for predictions of the effects of resource management and climate change on wildlife populations. A recent shift in forest management priorities from timber production to native species' habitat conservation on federal lands has emphasized the need to...
Resource Type:: Masters Thesis
Full Text:: – INTRODUCTION Historical Context Timber extraction and forest management in the Pacific Northwest (PNW) in

The combined effects of vegetation control and seedling size class on Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedling productivity on a site in Oregon

Creator:: Lefebvre, Robert F.
Abstract:: Controlling competing vegetation with the application of herbicides and increased seedling size at planting has been shown to increase seedling survival and growth. These two important reforestation tools have often been studied independently of each other, limiting comparisons that can be made between them. This study utilized a factorial treatment...
Resource Type:: Masters Thesis
Full Text:: 1988, Rose et al. 1999). In the Pacific Northwest (PNW), which is dominated by a Mediterranean

Evaluating the effectiveness of commonly used herbaceous weed control regimes in a Pacific Northwest conifer plantation

Creator:: Dinger, Eric
Abstract:: Early in the establishment of Pacific Northwest conifer plantations, herbaceous weeds often decrease seedling growth through competition for soil moisture during the dry summer months. Critical period studies have reported that reductions in competitive weed cover are necessary during the initial years of establishment to avoid reductions in seedling growth....
Resource Type:: Masters Thesis
Full Text:: (Zimdahl 1988). Forest managers in the Pacific Northwest (PNW) were keenly aware of the need to quickly

Influence of cow age/experience and landscape thermal regimes on distribution and grazing patterns of cattle in northeastern Oregon mixed conifer forested rangelands

Creator:: Wells, Micah
Abstract:: Two studies were conducted to determine the factors influencing distribution of cattle on northeastern Oregon mixed-conifer forested rangelands. The objective of the first study was the quantification of differences in distribution of cattle of different ages. Beginning in 1991, and continuing through 2001, radio telemetry collars were placed on a...
Resource Type:: Masters Thesis
Full Text:: native cattle. Philippine Agriculturist 48, 463-474. Miller, Richard F. and Krueger William C. (1976

Environmental factors influencing the rate of spread of Phellinus weirii (Murr.) Gilbertson in young-growth Douglas-fir

Creator:: Angwin, Peter A.
Abstract:: Studies to identify the environmental factors that influence the rate of ectotrophic mycelial growth of Phellinus weirii (Murr.) Gilbertson along Douglas-fir roots were undertaken both in the laboratory and in the field. The effects of soil pH, nitrogen, moisture, temperature, microorganisms and bulk density were investigated. In the lab, the...
Resource Type:: Masters Thesis

Shell Boring Polychaetes and the Oregon Oyster Aquaculture Industry: Spatial Distribution, Regulatory Actions, and Stakeholder Engagement

Creator:: Considine, Megan E.
Abstract:: Shell-boring polychaetes pose economic risks for oyster aquaculture industries as they reduce the aesthetic quality of oyster products by creating unsightly mud-filled blisters on the inside of the shell. Recently there has been a reported uptick in infested oysters on commercial farms along the west coast of the US, which...
Resource Type:: Masters Thesis
Full Text:: are adapted to PNW environmental conditions. Each of these treatment options were selected by oyster

Bacteriophages Significantly Reduce Mortality of Larval Pacific Oysters Crassostrea gigas from Infection by the Pathogenic Bacterium Vibrio coralliilyticus RE98

Creator:: Madison, David B.
Abstract:: Vibrio coralliilyticus (Vcor) is a bacterial pathogen that is well adapted to shellfish hatcheries and is very pathogenic to the larvae of the Pacific oyster Crassostrea gigas. Vcor has been associated with several large scale larval mortality events in the Pacific Northwest that interrupt the supply of seed oysters available...
Resource Type:: Masters Thesis
Full Text:: .................. 76 Conducting large scale hatchery trials at a PNW shellfish hatchery

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