Index Catalog // ScholarsArchive@OSU

Atlantic Puffin (Fratercula arctica) Foraging Ecology During Marine Heatwave Conditions

Creator:: Kennerley, William L.
Abstract:: Marine heatwaves (“MHWs”) are discrete periods of anomalously warm ocean conditions that can lead to shifts in the distribution and abundance of marine organisms. Low-trophic level, pelagic forage species are frequently among those affected by MHWs, often resulting in considerable impacts upon their predators. In the North Atlantic Ocean, Atlantic...
Resource Type:: Masters Thesis
Full Text:: the North Atlantic Ocean, Atlantic puffins (Fratercula arctica, “puffins”) are a charismatic

Movement, dive behavior, and habitat-use of common murres (Uria aalge) in the Northern California Current System under variable ocean conditions

Creator:: Loredo, Stephanie A.
Abstract:: Year-round habitat use of marine predators provides knowledge of important marine areas throughout different life stages. Large-scale, environmental variability, both in space and time, causes changes in the behavior and distribution of marine predators that are important to quantify for conservation. In the Northern California Current System (NCCS), common murres...
Resource Type:: Masters Thesis
Full Text:: in Chapter 3. Dr. Rachael A. Orben provided extensive analytical support, interpretation of results

Design and Implementation of a Wearable Walking Navigation Assistance System for the Vision Impaired

Creator:: Sylwester, Sean T.
Abstract:: Few navigation-assistance technologies for vision impaired individuals are practical due to inhibiting factors such as cost, comfort, convenience, and overall usefulness of the assistance. This thesis will present the design and implementation of a navigation assistance system intended to address these concerns. The presented system improves on existing technologies by...
Resource Type:: Honors College Thesis
Full Text:: Design and Implementation of a Wearable Walking

Tonight’s Specials Include Mysids, Amphipods, and More: An Examination of the Zooplankton Prey of Oregon Gray Whales and its Impact on Foraging Choices and Prey Selection

Creator:: Hildebrand, Lisa
Abstract:: Understanding prey quality and prey selection by predators is critical for management efforts aimed at identification and protection of essential habitats and prey. Marine predators must make daily foraging choices in a heterogenous and dynamic environment in order to meet the high energetic demands of migration, reproduction and foraging. With...
Resource Type:: Masters Thesis
Full Text:: members, Dr. Rachael Orben, Dr. Kim Bernard and Dr. Susanne Brander for your guidance and support. I

Restoring the Columbia River Estuary : Chinook Salmon Recovery and Invasive Species Management

Creator:: Klopfenstein, Rachael
Abstract:: As highlighted in this study, shallow-water habitats and the prey they provide are important for juvenile salmon in the Columbia River estuary, but the spread of invasive species and large-scale changes to the estuary influence how these habitats are utilized. Reed canarygrass (Phalaris arundinacea) (“PHAR” hereafter) is a highly invasive...
Resource Type:: Masters Thesis
Full Text:: Salmon Recovery and Invasive Species Management by Rachael Klopfenstein A THESIS

Family-Teacher Relationships and Child Engagement in Early Care and Education

Creator:: Lewis, Hillary R.
Abstract:: The interactions young children have with teachers, peers, and tasks in early care and education (ECE) settings support development of social and academic skills. The degree to which families and teachers partner to support children’s development may contribute to child engagement. The current study aims to expand our understanding of...
Resource Type:: Masters Thesis
Full Text:: from Oregon’s Quality Rating Improvement System (QRIS) Validation Study, a sample of 492 preschool

The effects of thermodynamic parameterizations, ice shelf geometry, and tides on modeled basal melting of Weddell Sea ice shelves

Creator:: Mueller, Rachael D.
Abstract:: Antarctic Ice Sheet mass balance and, hence, sea level change is affected by the floating extensions of outlet glaciers and ice streams that take up about 44% of the coastline (Drewry et al., 1982) and are referred to as "ice shelves". Ice sheet mass loss accelerates when these ice shelves...
Resource Type:: Dissertation
Full Text:: Weddell Sea Ice Shelves. by Rachael D. Mueller A DISSERTATION submitted to Oregon State University in

Shear and convective turbulence in a model of thermohaline intrusions

Creator:: Mueller, Rachael
Abstract:: Thermohaline interleaving is an important mechanism for laterally fluxing salt, heat, and nutrients between oceanic water masses. Interleaving is driven by a release of potential energy resulting from the vastly differing diffusivities of heat and salt in seawater. The flows are composed of stacked intrusions that flux more buoyant and...
Resource Type:: Masters Thesis

Whole system perspective : Steelhead, Onchorhynchus mykiss, glutathione s-transferase as a biomarker of chlorpyrifos exposure

Creator:: Pecore, Rachael G.
Abstract:: Organophosphate insecticides may produce sublethal, adverse effects on salmonid growth, reproduction, maturation, swimming, and feeding. Chlorpyrifos, an organophosphate insecticide, was detected by the Oregon Department of Environmental Quality in the Hood River and tributaries during March 1999 at levels exceeding state water quality standards in the range of 0.011-0.482 μg/L....
Resource Type:: Undergraduate Thesis

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

ScholarsArchive@OSU

Atlantic Puffin (Fratercula arctica) Foraging Ecology During Marine Heatwave Conditions

Movement, dive behavior, and habitat-use of common murres (Uria aalge) in the Northern California Current System under variable ocean conditions

Design and Implementation of a Wearable Walking Navigation Assistance System for the Vision Impaired

Tonight’s Specials Include Mysids, Amphipods, and More: An Examination of the Zooplankton Prey of Oregon Gray Whales and its Impact on Foraging Choices and Prey Selection

Restoring the Columbia River Estuary : Chinook Salmon Recovery and Invasive Species Management

Family-Teacher Relationships and Child Engagement in Early Care and Education

The effects of thermodynamic parameterizations, ice shelf geometry, and tides on modeled basal melting of Weddell Sea ice shelves

Shear and convective turbulence in a model of thermohaline intrusions

Whole system perspective : Steelhead, Onchorhynchus mykiss, glutathione s-transferase as a biomarker of chlorpyrifos exposure

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

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