Index Catalog // ScholarsArchive@OSU

Salt marsh reestablishment following dike breaching in the Salmon River estuary, Oregon

Creator:: Mitchell, Diane Lynne
Abstract:: A 22 ha, 1S yeas old, diked permanent pasture in the Salmon River estuary in Lincoln County, Oregon, was chosen for a study to determine the potential for natural salt marsh restoration with dike breaching. Two undiked fragments of relatively undisturbed salt marsh, one at each end of the study...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Diane Lynne Mitchell for

An analysis of montane forest vegetation on the east flank of the central Oregon Cascades

Creator:: West, Neil E.
Abstract:: Montane forest vegetation as it occurs on the east flank of the central Oregon Cascades has provided excellent conditions for a "natural experiment" in the use of various methodologies in studying vegetational distribution. This "experiment" has reflected on some theory and practice for the discipline of plant synecology. Detailed descriptions,...
Resource Type:: Dissertation
Full Text:: view of stand P -D -1 115 12 Photographic view of stand P -W -6 116 13 Photographic view of stand P

Distribution of understory species in relation to maximum and minimum tree influence in the montane forest of the Central Oregon Cascades

Creator:: Robinson, Andrew Frederick, Jr.
Abstract:: Twenty sites of uniform topography and soil were select ed in the montane forest found on the East flank of the Central Oregon Cascades. These sites were located along a vegetational gradient composed of five plant communities: Abies/Pachistima, Pinus/Ceanothus, Pinus Arctostaphylos-Purshia, Pinus/Purshia/Festuca, and Juniperus Festuca. An attempt was made to...
Resource Type:: Dissertation
Full Text:: THE CENTRAL OREGON CASCADES Abstract approved: Redacted for Privacy W. W. Chilcote Twenty sites of

Diseases of Rhododendron and Boxwood: Survey and Virulence of Phytophthora Root Rot and Management of Boxwood Blight with Systemic Fungicides

Creator:: Sacher, Gabriel
Abstract:: Diseases can be a substantial threat to woody plant production, a major industry in Oregon. Boxwood (Buxus spp.) and rhododendron (Rhododendron subgenus Rhododendron and Hymenanthes) represent the top two broadleaf evergreen woody plants by farmgate value in Oregon. Historically, Phytophthora root rot has been considered the most destructive disease of...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________ Jay W. Pscheidt Diseases can be a substantial threat to woody plant production, a major

Biology, epidemiology, and biological and chemical control of Phytophthora vignae

Creator:: Fernando, W. Gerard Dilantha
Abstract:: Phytophthora vignae, causal agent of stem and root rot of cowpea (Vigna unguiculata), was reported for the first time in Sri Lanka. The pathogen was found in cowpea field soils from 3 of 5 geographic regions sampled. Only one site however, had plants exhibiting disease symptoms. Of the eight cowpea...
Resource Type:: Dissertation
Full Text:: agent of alfalfa root rot (Marks and Mitchell, 1970; Pratt and Mitchell, 1973, and 1975). As P. vignae

Lichen response to the environment and forest structure in the western Cascades of Oregon

Creator:: Martin, Erin P.
Abstract:: Lichens are an important part of the biota in western Oregon forests, where they perform valuable ecological roles and contribute significantly to biodiversity. Lichens in western Oregon are threatened by a number of factors including air pollution and land use practices. If we wish to maintain the persistence of lichens...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Erin P. Martin for the

Analysis and prediction of patterns in lichen communities over the western Oregon landscape

Creator:: Peterson, Eric B.
Abstract:: The diverse lichen flora of the Pacific Northwest is being impacted by population growth and by forest management practices. Accumulating information about our lichen flora will improve our conservation strategies. This dissertation first collects information to improve our understanding of how lichen communities vary among forests of differing structure, and...
Resource Type:: Dissertation
Full Text:: Prediction of Patterns in Lichen Communities over the Western Oregon Landscape. Abstract Approved: Bruce P

Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation

Creator:: Sung, Gi-Ho
Abstract:: Cordyceps is a genus of perithecial ascomycetes. It includes over 400 species that are pathogens of arthropods and parasites of the truffle genus Elaphomyces. Based on the morphology of cylindrical asci, thickened ascus apices and filiform ascospores, it is classified in the Clavicipitaceae (Hypocreales), which also includes endophytes and epiphytes...
Resource Type:: Dissertation
Full Text:: Privacy Redacted for privacy CONTRIBUTION OF AUTHORS Dr. Joseph W. Spatafora was involved in the

Description of the plant communities and succession of the Oregon coast grasslands

Creator:: Ripley, James Douglas
Abstract:: In an effort to describe the plant communities and succession of the Oregon coastal grasslands, vegetation and environmental data were collected from 75 stands at 24 separate locations ranging from Cape Falcon in Tillamook County to Cape Ferrelo in Curry County. The vegetation data consisted of cover and frequency values...
Resource Type:: Dissertation
Full Text:: approved: William W. Chilcote In an effort to describe the plant communities and succession of the

Systematics, phylogeny, and biogeography of the hysterangiales and related taxa (Phallomycetidae, Homobasidiomycetes)

Creator:: Hosaka, Kentaro
Abstract:: Monophyly of the gomphoid-phalloid clade was confirmed based on multigene phylogenetic analyses. Four major subclades (Hysterangiales, Geastrales, Gomphales and Phallales) were also demonstrated to be monophyletic. The interrelationships among the subclades were, however, not resolved, and alternative topologies could not be rejected statistically. Nonetheless, most analyses showed that the Hysterangiales...
Resource Type:: Dissertation
Full Text:: . McLaughlin, and P. A. Lemke, eds.). Springer-Verlag, Berlin. pp. 12 1-168 Jillich, W. 1981. Higher taxa

ScholarsArchive@OSU

Salt marsh reestablishment following dike breaching in the Salmon River estuary, Oregon

An analysis of montane forest vegetation on the east flank of the central Oregon Cascades

Distribution of understory species in relation to maximum and minimum tree influence in the montane forest of the Central Oregon Cascades

Diseases of Rhododendron and Boxwood: Survey and Virulence of Phytophthora Root Rot and Management of Boxwood Blight with Systemic Fungicides

Biology, epidemiology, and biological and chemical control of Phytophthora vignae

Lichen response to the environment and forest structure in the western Cascades of Oregon

Analysis and prediction of patterns in lichen communities over the western Oregon landscape

Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation

Description of the plant communities and succession of the Oregon coast grasslands

Systematics, phylogeny, and biogeography of the hysterangiales and related taxa (Phallomycetidae, Homobasidiomycetes)

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