Index Catalog // ScholarsArchive@OSU

Linking Moral Obligations, Assumption-based Research, and Structured Decision Making to Inform Bull Trout Recovery

Creator:: Brignon, William R.
Abstract:: More than 1500 species of plants and animals in the United States are listed as threatened or endangered under the Endangered Species Act (ESA). The U.S. Departments of Interior and Commerce are required, under Section 4(f)(1) of the ESA, to develop recovery plans for ESA-listed species under the respective agency...
Resource Type:: Dissertation
Full Text:: . ©Copyright by William R. Brignon August 16, 2016 All Rights Reserved Linking Moral Obligations

Factors influencing density, distribution, and mesohabitat selection of juvenile wild salmonids and residual hatchery winter steelhead

Creator:: Brignon, William R., Olson, Douglas E., Schaller, Howard A., and Schreck, Carl B.
Abstract:: To best manage Eagle Creek National Fish Hatchery, negative interactions between hatchery salmonids and Endangered Species Act listed wild salmonids in the Eagle Creek Basin need to be minimized. Our objectives were: 1) to compare summer rearing densities in two similar streams, where one stream received a release of hatchery...
Resource Type:: Article
Full Text:: selection of juvenile wild salmonids and residual hatchery winter steelhead William R. Brignon a,b

Perceptions of Sexual Health Websites by Low Income Urban African American Youth and Service Providers

Creator:: Williams, Dacia R.
Abstract:: Low-Income urban African American (LIU-AA) youth are at high risk for HIV/STIs and adolescent pregnancy. Sexual health websites (SHWs) offer an inexpensive, easy-to-disseminate, and potentially highly-accessible method of improving sexual health knowledge, awareness, and help-seeking. The present study examined engagement regarding sexual health websites for at-risk, LIU-AA youth. We conducted...
Resource Type:: Honors College Thesis
Full Text:: increase the trust and the information that they receive from those sites” (C,P,1,30). R: “I would tell

The effect of acquisition and analysis automation failure in a low-fidelity multitasking system

Creator:: Secor, William R.
Abstract:: Research into the effect of automation on human multitasking performance is primarily focused on Decision Automation (a machine suggesting a certain course of action for a human operator to take) and Action Automation (a machine carrying out a certain course of action on behalf of the human operator) while Acquisition...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF William R. Secor for the degree

Locally interpolated alkalinity regression for global alkalinity estimation

Creator:: Carter, B. R., Williams, N. L., Gray, A. R., and Feely, R. A.
Abstract:: We introduce methods and software for estimating total seawater alkalinity from salinity and any combination of up to four other parameters (potential temperature, apparent oxygen utilization, total dissolved nitrate, and total silicate). The methods return estimates anywhere in the global ocean with comparable accuracy to other published alkalinity estimation techniques....
Resource Type:: Article

Agricultural land use and macroinvertebrate assemblages in lowland temporary streams of the Willamette Valley, Oregon, USA

Creator:: Gerth, William J., Li, Judith, and Giannico, Guillermo R.
Abstract:: Streams that dry during part of the year are common throughout the world, yet studies of the macroinvertebrate assemblages in these types of streams are rare compared to those in permanent streams; and studies that assess the effects of agriculture on temporary stream invertebrates are even rarer. We studied macroinvertebrate...
Resource Type:: Article

The impact of El Niño events on the pelagic food chain in the northern California Current

Creator:: Fisher, Jennifer L., Peterson, William T., and Rykaczewski, Ryan R.
Abstract:: The zooplankton of the northern California Current are typically characterized by an abundance of lipid-rich copepods that support rapid growth and survival of ecologically, commercially, and recreationally valued fish, birds, and mammals. Disruption of this food chain and reduced ecosystem productivity are often associated with climatic variability such as El...
Resource Type:: Article
Full Text:: northern California Current Fisher, J. L., Peterson, W. T., & Rykaczewski, R. R. (2015). The impact of El

Reference Gene Selection for Quantitative PCR Studies in Sheep Neutrophils

Creator:: Vorachek, William R., Hugejiletu, Bobe, Gerd, and Hall, Jean A.
Abstract:: Reference genes are essential for studying mRNA expression with quantitative PCR (qPCR). We investigated 11 potential neutrophil reference genes (RPL19, GAPDH, ACTB, B2M, HPRT, G6PD, TFRC, PGK1, YWHAZ, SDHA and GYPC) for sheep under disease conditions of foot rot (FR) and with or without Se supplementation. Initial screening was based...
Resource Type:: Article
Full Text:: Gene Selection for Quantitative PCR Studies in Sheep Neutrophils William R. Vorachek 1, Hugejiletu

Timing of Population Fragmentation in a Vulnerable Minnow, the Umpqua Chub, and the Role of Nonnative Predators

Creator:: O’Malley, Kathleen G., Markle, Douglas F., and Ardren, William R.
Abstract:: We examined the distribution of Umpqua Chub Oregonichthys kalawatseti, an endemic, vulnerable minnow in western Oregon, and whether six ecological populations (based on distribution patterns) had sufficient genetic cohesion to be considered evolutionary populations. We also evaluated the influence of Holocene geological events and recent nonnative predator introductions on the...
Resource Type:: Article
Full Text:: a , Douglas F. Markle b & William R. Ardren c a Coastal Oregon Marine Experiment Station, Hatfield

The sources of volatile and fluid-mobile elements in the Sunda arc: A melt inclusion study from Kawah Ijen and Tambora volcanoes, Indonesia

Creator:: Vigouroux, Nathalie, Wallace, Paul J., Williams-Jones, Glyn, Kelley, Katherine, Kent, Adam J. R., and Williams-Jones, Anthony E.
Abstract:: Subduction zone recycling of volatiles (H₂O, Cl, S, F) is controlled by the nature of subducted materials and the temperature-pressure profile of the downgoing slab. We investigate the variability in volatile and fluid-mobile trace element enrichment in the Sunda arc using melt inclusion data from Kawah Ijen and Tambora volcanoes,...
Resource Type:: Article
Full Text:: , University of Rhode Island, Narragansett, Rhode Island 02882, USA Adam J. R. Kent College of Earth, Ocean

ScholarsArchive@OSU

Linking Moral Obligations, Assumption-based Research, and Structured Decision Making to Inform Bull Trout Recovery

Factors influencing density, distribution, and mesohabitat selection of juvenile wild salmonids and residual hatchery winter steelhead

Perceptions of Sexual Health Websites by Low Income Urban African American Youth and Service Providers

The effect of acquisition and analysis automation failure in a low-fidelity multitasking system

Locally interpolated alkalinity regression for global alkalinity estimation

Agricultural land use and macroinvertebrate assemblages in lowland temporary streams of the Willamette Valley, Oregon, USA

The impact of El Niño events on the pelagic food chain in the northern California Current

Reference Gene Selection for Quantitative PCR Studies in Sheep Neutrophils

Timing of Population Fragmentation in a Vulnerable Minnow, the Umpqua Chub, and the Role of Nonnative Predators

The sources of volatile and fluid-mobile elements in the Sunda arc: A melt inclusion study from Kawah Ijen and Tambora volcanoes, Indonesia

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