Index Catalog // ScholarsArchive@OSU

Physconia labrata, a new species from western North America and Asia

Creator:: Esslinger, Theodore L., McCune, Bruce, and Haughland, Diane L.
Abstract:: A new species belonging to the lichen genus Physconia is described from Alaska and the Canadian and American Rocky Mountains and adjacent forested regions. It is also reported from China, Nepal, India and Siberia. The new species, Physconia labrata, is superficially similar to P. perisidiosa, but can be distinguished by...
Resource Type:: Article
Full Text:: and amplification protocols are in McCune & Curtis (2012). Primers for amplifying nuclear ITS were

Landscape Genomics and Climatic Responses of Willamette Valley Alders

Creator:: Kral, George L.
Abstract:: The climate of the Pacific Northwest is in flux, and existing forest ecosystems are stressed and poised to shift in fundamental ways, with or without human intervention. This dissertation probes the nature of forest responses to environmental change through investigations of morphology and genetics of three species of alder co-occurring...
Resource Type:: Dissertation
Full Text:: Reid 1988, Petit et al. 2003, Ortego and Knowles 2020). Unexpectedly, this concept has become a focus

Community Ecology of Foliar Fungi and Oomycetes of Pseudotsuga menziesii on the Pacific Northwest Coast

Creator:: Gonen, Lilah
Abstract:: Pseudotsuga menziesii var. menziesii (coast Douglas-fir) is a tree of ecological, economic, and cultural value in its native North American Pacific Northwest (PNW) distribution. P. menziesii is host to a variety of well-documented endophytic foliar microorganisms, including the fungus Nothophaeocryptopus gaeumannii, the causal agent of Swiss needle cast (SNC), and...
Resource Type:: Masters Thesis
Full Text:: -Curtis dissimilarity. Each point represents the fungal community of a single tree’s pooled needles. Axes

Scratching the Surface of the Potato Geocaulosphere: Characterizing the Microbiome of Seed Tuber Tare Soil and its Impact on the Rhizosphere Microbiome

Creator:: Delventhal, Kayla D.
Abstract:: For tuberizing crops like potato (Solanum tuberosum), the geocaulosphere, or the zone of soil in contact with and influenced by the tuber, is a distinct sphere of microbial life and represents an important interface between the potato crop and the soil environment. Upon potato harvest, specific geocaulosphere soil called tare...
Resource Type:: Masters Thesis
Full Text:: A) Fungi and B) Bacteria using Bray-Curtis dissimilarity…………………………………………….…69 3.2 Graphical

Orbilia ultrastructure, character evolution and phylogeny of Pezizomycotina

Creator:: Kumar, T.K. Arun, Healy, Rosanne, Spatafora, Joseph W., Blackwell, Meredith, and McLaughlin, David J.
Abstract:: Molecular phylogenctic analyses indicate that the monophyletic classes Orbiliomycetes and Pezizomycetes are among the earliest diverging branches of Pezizomycotina, the largest subphylum of the Ascomycota. Although Orbiliomycetes is resolved as the most basal lineage in some analyses, molecular support for the node resolving the relationships between the two classes is...
Resource Type:: Article
Full Text:: ). Mycologia 75:781–794, doi:10.2307/3792771 Dowsett JA, Reid J, Caeseele LV. 1977. Transmission and scanning

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:: ., R.A. Klips, L.E. Nave, S.D. Frey and P.S. Curtis. 2004. Effects of soil carbon amendment on

The Role of Plant-soil Feedback in the Invasion of Brachypodium sylvaticum in Douglas-fir Forests

Creator:: Esterson, Andrew
Abstract:: Invasive plants have the capacity to transform landscapes and alter ecosystem function, causing significant economic and ecological damage. These effects include displacement and reduction of native flora and fauna, altered fire regimes, modification of biotic and abiotic soil properties, as well as local, regional, and global economic impacts. With such...
Resource Type:: Masters Thesis
Full Text:: for Exotic Invasion.” Science (Washington) 290 (5491): 521–23. Daehler, Curtis C. 2003

Seasonality as a driving factor of decomposition pathways in both meadows and forests : an exploration across a gradient of climate in Oregon

Creator:: Colby, Samantha E.
Abstract:: Soil food webs process the majority of terrestrial carbon, and influence overall ecosystem function. A primary distinction among soil food webs is based on fungal versus bacterial pathways of decomposition; these lead to fundamentally different soil function, and are expected to differ in dominance between meadows and forests. This assumption...
Resource Type:: Masters Thesis
Full Text:: ., Reid, C.P.P., and Cole, C.V., 1983. Biological Strategies of Nutrient Cycling in Soil Systems

Functional groups, traits, and the performance of species in restoration

Creator:: Roberts, Rachael E. (Rachael Elaine)
Abstract:: In ecological restoration, species that are sown to increase the native plant diversity range in establishment ability. Some species readily establish, while others rarely do. This study set out to investigate some of the potential processes influencing species establishment, as well as the traits that are associated with the success...
Resource Type:: Masters Thesis
Full Text:: the William H. Finley National Wildlife Refuge for letting me set up my experimental plots at Field

The fate of organic and inorganic nitrogen inputs in an old-growth forest of the central Oregon Cascade Range

Creator:: Holub, Scott M.
Abstract:: Forests in the Pacific Northwest receive very little nitrogen through atmospheric deposition and thus studying the nitrogen cycle in this region can provide insights into how the unpolluted nitrogen cycle functions. I examined the fate of organic nitrogen versus inorganic nitrogen and the effect of tamlins on N retention by...
Resource Type:: Dissertation
Full Text:: . Spears, my wife and lab mate; David Harris, William Denison, Nan Richtie, Bruce Caidwell, George Carroll

ScholarsArchive@OSU

Physconia labrata, a new species from western North America and Asia

Landscape Genomics and Climatic Responses of Willamette Valley Alders

Community Ecology of Foliar Fungi and Oomycetes of Pseudotsuga menziesii on the Pacific Northwest Coast

Scratching the Surface of the Potato Geocaulosphere: Characterizing the Microbiome of Seed Tuber Tare Soil and its Impact on the Rhizosphere Microbiome

Orbilia ultrastructure, character evolution and phylogeny of Pezizomycotina

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

The Role of Plant-soil Feedback in the Invasion of Brachypodium sylvaticum in Douglas-fir Forests

Seasonality as a driving factor of decomposition pathways in both meadows and forests : an exploration across a gradient of climate in Oregon

Functional groups, traits, and the performance of species in restoration

The fate of organic and inorganic nitrogen inputs in an old-growth forest of the central Oregon Cascade Range

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