Index Catalog // ScholarsArchive@OSU

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:: AN ABSTRACT OF THE THESIS OF Caitlin E. Lawrence for the degree of Master of Science in Botany

The distribution and partitioning of dissolved organic matter off the Oregon Coast : a first look

Creator:: Hill, Jon K.
Abstract:: The purpose of this thesis is to provide a first look at the spatial and temporal distributions of dissolved organic material (DOM) off the Oregon coast of North America. While this paper is not a comprehensive examination of these distributions, several patterns are identified as promising candidates for continued research....
Resource Type:: Masters Thesis
Full Text:: Dissolved Organic Matter off the Oregon Coast: A First Look. Abstract approved: Patricia A. Wheeler The

Floating Offshore Wind Array Systems Optimization off the US West Coast using an Extended Pattern Search Algorithm

Creator:: Forinash, Caitlin P.
Abstract:: The large wind resource off the United States West Coast has the potential to generate wind power for millions of homes, yet the high cost of energy for offshore wind power compared to traditional sources has slowed the development of offshore wind farms in the US. The four studies presented...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Caitlin P. Forinash

Systematic studies of the genus Siphateles (Ostariophysi: Cyprinidae) from western North America

Creator:: Harris, Phillip M.
Abstract:: The minnow genus Siphateles is distributed throughout the Great Basin and adjacent drainages of western North America. Three species are currently recognized in the genus: S. alvordensis, Alvord chub, S. boraxobius, Borax Lake chub, and S. bicolor, the tui chub. S. bicolor has long been recognized as a widespread species...
Resource Type:: Dissertation

Shrub epiphyte communities in relation to stand management in forests of western Oregon

Creator:: Rosso, Abbey L.
Abstract:: This dissertation describes the epiphyte communities on tall shrubs in forests of western Oregon, with a focus on potential effects of management practices on these communities. Shrubs and other hardwoods have recently gained recognition as hotspots of diversity for epiphytes in young conifer forests of the region. Yet little is...
Resource Type:: Dissertation
Full Text:: Relation to Stand Management in Forests of Western Oregon. Abstra Abstract Approved Patricia S. Muir

Influence of cover crop residue management on soil moisture, vine growth, and productivity in a pre-production vineyard in the Willamette Valley

Creator:: Curtis, Morgan A.
Abstract:: The use of cover crops in young vineyards is not widely accepted in the Pacific Northwest due to concerns of water and nutrient competition between the cover crop and vines. The last 2 years of a 4-year study started in 2009 are reported here. The study evaluated the use of...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________________________ Patricia A. Skinkis The use of cover crops in young vineyards is not widely accepted in the

An evaluation of the invasion potential of Kochia prostrata (forage kochia) in southwestern Idaho, USA

Creator:: Gray, Erin C.
Abstract:: Purposeful introductions of exotic species for rehabilitation efforts following wildfire are common on rangelands in the western U.S., though potential ecological impacts of introduced species in novel environments are often poorly understood. One such introduced species, Kochia prostrata (L.) Schrad (forage kochia) has been seeded on over 200,000 ha throughout...
Resource Type:: Masters Thesis
Full Text:: approved: Patricia S. Muir Purposeful introductions of exotic species for rehabilitation

Implications of cougar prey selection and demography on population dynamics of elk in northeast Oregon

Creator:: Clark, Darren A.
Abstract:: Mule deer (Odocoileus hemionus hemionus) and Rocky Mountain elk (Cervus canadensis nelsoni; hereafter elk) populations in northeast Oregon have declined in the past 10 to 20 years. Concurrent with these declines, cougar (Puma concolor) populations have apparently increased, leading to speculation that predation by cougars may be responsible for declining...
Resource Type:: Dissertation
Full Text:: Abstract approved: ________________________________________________________ Patricia L. Kennedy

A content analysis of court opinions about grandparent visitation rights

Creator:: Henderson, Tammy L.
Abstract:: The current study was a content analysis of court opinions on grandparent visitation rights using the method of grounded theory. The research questions addressed in this study were: (a) On what bases were grandparents granted legal standing to petition for visitation with their grandchildren? (b) What was the legal reasoning...
Resource Type:: Dissertation
Full Text:: Court Opinions About Grandparent Visitation Rights. Abstract approved: Patricia B. Moran The current

Direct and indirect effects of livestock grazing intensity on processes regulating grassland bird populations

Creator:: Johnson, Tracey N.
Abstract:: In grasslands, grazing by large ungulates can influence vegetation structure, composition, primary productivity, and ultimately, ecosystem functioning. While grazing represents a complex disturbance, grazing intensity largely determines the effects of grazing on vegetation. Structural and compositional changes in the plant community caused by grazing could have bottom-up effects on species...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Patricia L. Kennedy In grasslands, grazing by large ungulates can influence vegetation

ScholarsArchive@OSU

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

The distribution and partitioning of dissolved organic matter off the Oregon Coast : a first look

Floating Offshore Wind Array Systems Optimization off the US West Coast using an Extended Pattern Search Algorithm

Systematic studies of the genus Siphateles (Ostariophysi: Cyprinidae) from western North America

Shrub epiphyte communities in relation to stand management in forests of western Oregon

Influence of cover crop residue management on soil moisture, vine growth, and productivity in a pre-production vineyard in the Willamette Valley

An evaluation of the invasion potential of Kochia prostrata (forage kochia) in southwestern Idaho, USA

Implications of cougar prey selection and demography on population dynamics of elk in northeast Oregon

A content analysis of court opinions about grandparent visitation rights

Direct and indirect effects of livestock grazing intensity on processes regulating grassland bird populations

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