Index Catalog // ScholarsArchive@OSU

Effects of earthflows on stream channel and valley floor morphology western Cascade Range, Oregon

Creator:: Vest, Sarah B.
Abstract:: Slow moving earthflows (0.1 15 m/yr.) may constrict valley floors and directly impinge on stream channels. Earthflows that move laterally into channels deliver organic and inorganic material to the stream from the earthflow toe. If the amount and particle size of this material is too large to be removed by...
Resource Type:: Masters Thesis
Full Text:: morphology western Cascade Range, Oregon AN ABSTRACT OF THE THESIS OF Sarah B. Vest for the degree of

Alteration mineralogy and geochemistry of the Archaean Onverwacht Group, Barberton Mountain Land, South Africa

Creator:: Hoffman, Sarah Elizabeth
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Sarah Hoffman for the degree of

Spatiotemporal Characterization of Sclerotinia Crown Rot Epidemics in Pyrethrum

Creator:: Scott, Jason B., Gent, David H., Pethybridge, Sarah J., and Hay, Frank S.
Abstract:: Sclerotinia crown rot, caused by Sclerotinia minor and S. sclerotiorum, is a disease of pyrethrum in Australia that may cause substantial decline in plant density. The spatiotemporal characteristics of the disease were quantified in 14 fields during three growing seasons. Fitting the binary power law to disease incidence provided slope...
Resource Type:: Article
Full Text:: University, Department of Botany and Plant Pathology, Corvallis 97331; Sarah J. Pethybridge, The New Zealand

NelsonPeterBotanyPlantPathNonParametricMethodsReveal.pdf

Creator:: Nelson, Peter R., McCune, Bruce, Roland, Carl, and Stehn, Sarah
Abstract:: Questions: Popular methods to analyse community–trait–environment relationships constrain community patterns by trait and environment relationships. What if some traits are strongly associated with community composition but unrelated to environmental variables and vice versa? We take a different approach, unconstrained by this assumption using non-parametric methods. We applied this technique to...
Full Text:: environmental and fire age gradients Peter R. Nelson, Bruce McCune, Carl Roland & Sarah Stehn Keywords Alaska

Patterns in the occupancy and abundance of the globally rare lichen Erioderma pedicellatum in Denali National Park and Preserve, Alaska

Creator:: Stehn, Sarah E., Nelson, Peter R., Roland, Carl A., and Jones, Jennifer R.
Abstract:: We investigated habitat attributes related to the occupancy of the globally rare and endangered epiphytic lichen, Erioderma pedicellatum, in a newly discovered (2009) population center in Denali National Park and Preserve (DNPP), Alaska. We measured forest, tree and epiphytic lichen community characteristics on eighty-five systematically selected plots in four study...
Resource Type:: Article
Full Text:: lichen Erioderma pedicellatum in Denali National Park and Preserve, Alaska Sarah E. Stehn1,2, Peter R

WaldbusserGeorgeCEOASVulnerabilityAdaptationUS.pdf

Creator:: Ekstrom, Julia A., Suatoni, Lisa, Cooley, Sarah R., Waldbusser, George G., and et al.
Abstract:: Ocean acidification is a global, long-term problem whose ultimate solution requires carbon dioxide reduction at a scope and scale that will take decades to accomplish successfully. Until that is achieved, feasible and locally relevant adaptation and mitigation measures are needed. To help to prioritize societal responses to ocean acidification, we...
Full Text:: adaptation of US shellfisheries to ocean acidification Julia A. Ekstrom1*†, Lisa Suatoni2, Sarah R. Cooley3

Effects of disturbance scale on soil microbial communities in the Western Cascades of Oregon

Creator:: Kageyama, Stacie A., Posavatz, Nancy R., Jones, Sarah S., Waterstripe, Kirk E., Bottomley, Peter J., Cromack Jr., Kermit, and Myrold, David D.
Abstract:: To gain a better understanding of how rapidly microbial communities respond to different magnitudes of perturbation that mimic minor or catastrophic disturbances. Two montane sites in the western Cascade Mountains of Oregon with adjacent areas of forest and meadow vegetation were studied. A reciprocal transplant experiment evaluated both minor (soil...
Resource Type:: Article
Full Text:: microbial communities in the Western Cascades of Oregon Stacie A. Kageyama & Nancy R. Posavatz & Sarah S

Defenses of Susceptible and Resistant Chinook Salmon (Onchorhynchus tshawytscha) Against the Myxozoan Parasite Ceratomyxa shasta

Creator:: Bjork, Sarah J., Zhang, Yong-An, Hurst, Charlene N., Alonso-Naveiro, Maria E., Alexander, Julie D., Sunyer, J. Oriol, and Bartholomew, Jerri L.
Abstract:: We investigated intra-specific variation in the response of salmon to infection with the myxozoan Ceratomyxa shasta by comparing the progress of parasite infection and measures of host immune response in susceptible and resistant Chinook salmon Oncorhynchus tshawytscha at days 12, 25 and 90 post exposure. There were no differences in...
Resource Type:: Article
Full Text:: ) Against 1 the Myxozoan Parasite Ceratomyxa shasta 2 3 4 Sarah J. Bjorka, Yong-An Zhangb,c

Acoustic classification of multiple simultaneous bird species: A multi-instance multi-label approach

Creator:: Briggs, Forrest, Lakshminarayanan, Balaji, Neal, Lawrence, Fern, Xiaoli Z., Raich, Raviv, Hadley, Sarah J. K., Hadley, Adam S., and Betts, Matthew G.
Abstract:: Although field-collected recordings typically contain multiple simultaneously vocalizing birds of different species, acoustic species classification in this setting has received little study so far. This work formulates the problem of classifying the set of species present in an audio recording using the multi-instance multi-label (MIML) framework for machine learning, and...
Resource Type:: Article
Full Text:: University, Corvallis, Oregon 97331 Sarah J. K. Hadley, Adam S. Hadley, and Matthew G. Betts Department of

Investigating Microbial Eukaryotic Diversity from a Global Census: Insights from a Comparison of Pyrotag and Full-Length Sequences of 18S rRNA Genes

Creator:: Lie, Alle A. Y., Liu, Zhenfeng, Hu, Sarah K., Sherr, Evelyn B., Sherr, Barry F., Jones, Adriane C., Kim, Diane Y., Countway, Peter D., Amaral-Zettler, Linda A., Cary, S. Craig, Gast, Rebecca J., and Caron, David A.
Abstract:: Next-generation DNA sequencing (NGS) approaches are rapidly surpassing Sanger sequencing for characterizing the diversity of natural microbial communities. Despite this rapid transition, few comparisons exist between Sanger sequences and the generally much shorter reads of NGS. Operational taxonomic units (OTUs) derived from full-length (Sanger sequencing) and pyrotag (454 sequencing of...
Resource Type:: Article
Full Text:: Full-Length Sequences of 18S rRNA Genes Alle A. Y. Lie,a Zhenfeng Liu,a Sarah K. Hu,a Adriane C. Jones

ScholarsArchive@OSU

Effects of earthflows on stream channel and valley floor morphology western Cascade Range, Oregon

Alteration mineralogy and geochemistry of the Archaean Onverwacht Group, Barberton Mountain Land, South Africa

Spatiotemporal Characterization of Sclerotinia Crown Rot Epidemics in Pyrethrum

NelsonPeterBotanyPlantPathNonParametricMethodsReveal.pdf

Patterns in the occupancy and abundance of the globally rare lichen Erioderma pedicellatum in Denali National Park and Preserve, Alaska

WaldbusserGeorgeCEOASVulnerabilityAdaptationUS.pdf

Effects of disturbance scale on soil microbial communities in the Western Cascades of Oregon

Defenses of Susceptible and Resistant Chinook Salmon (Onchorhynchus tshawytscha) Against the Myxozoan Parasite Ceratomyxa shasta

Acoustic classification of multiple simultaneous bird species: A multi-instance multi-label approach

Investigating Microbial Eukaryotic Diversity from a Global Census: Insights from a Comparison of Pyrotag and Full-Length Sequences of 18S rRNA Genes

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