Index Catalog // ScholarsArchive@OSU

Historical Change and the Hydrogeomorphic Context of Present-day Floodplain Forests in the Willamette Valley, Oregon

Creator:: Bervid, Heather D.
Abstract:: Floodplain forests play many important roles in the fluvial processes and environments of large alluvial rivers, including acting as geomorphological influences and habitat for native fish during high flows. Many large, gravel-bed river systems have undergone substantial change in recent centuries, resulting in loss of forested area to agriculture, reduction...
Resource Type:: Masters Thesis
Full Text:: River at Albany, OR and b) Willamette River at Harrisburg, OR

Extrinsic and Intrinsic Factors Associated with Reproductive Success of Caspian Terns (Hydroprogne caspia) at East Sand Island, Columbia River Estuary

Creator:: Bailey, Olivia A.
Abstract:: Declines in wild salmonid (Oncorhynchus spp.) populations in the Columbia River basin have resulted in managers identifying that avian predation on juvenile salmonids is an important limiting factor for salmonid recovery. Caspian Terns (Hydroprogne caspia), particularly those nesting in the Columbia River estuary, were identified as key avian predators that...
Resource Type:: Masters Thesis
Full Text:: Island (river km 8), and its formation was concurrent with declines or abandonment of large colonies in

Laws, regulations, and management plans to improve streamflow and stream temperature : a case study in the North Fork Burnt River Watershed

Creator:: Morgan-Hayes, Anna S.
Abstract:: As the western United States faces warmer and increasingly varied climate conditions, as well as predicted water insecurity, concerns over water quality and water availability are growing. While humans, fish, and wildlife are dependent on clean water for survival in the present, management of water resources needs to consider future...
Resource Type:: Capstone Project
Full Text:: stream temperature: A case study in the North Fork Burnt River Watershed Abstract

Why pest plant control and native plant establishment failed : a restoration autopsy

Creator:: Wilson, Mark V., Ingersoll, Cheryl A., Clark, Deborah Louise, 1950-, and Wilson, Mark G.
Abstract:: Explaining restoration failure can be as important as touting success. We used a series of studies to understand the failure of techniques commonly used to restore wetland prairies in the Willamette Valley of western Oregon. Burning, fallowing, and solarization (covering tilled plots with plastic sheeting to heat the soil) had...
Resource Type:: Article
Full Text:: species, but either did not reduce overall pest plant abundance or reduced the abundance of native

Double-crested Cormorants (Phalacrocorax auritus) and Brandt’s Cormorants (P. penicillatus) Breeding at East Sand Island in the Columbia River Estuary : Foraging Ecology, Colony Connectivity, and Overwinter Dispersal

Creator:: Peck-Richardson, Adam
Abstract:: Double-crested cormorants (Phalacrocorax auritus) and Brandt’s cormorants (P. penicillatus) nest sympatrically in a large mixed-species colony on East Sand Island (ESI) in the Columbia River estuary. Ecological theory predicts that such morphologically similar species will partition prey resources when faced with resource limitations. During the summer of 2014, I investigated...
Resource Type:: Masters Thesis
Full Text:: East Sand Island in the Columbia River Estuary: Foraging Ecology, Colony Connectivity, and Overwinter

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:: numbers (Good et al. 2005). Thirteen Columbia River salmon stocks are now listed as Threatened or

Stream Temperature Modeling for Marys River Watershed

Creator:: Mustafa, Mamoon
Abstract:: High water temperatures in rivers have detrimental effects on riverine water quality and ecology. In this study, two river temperature models, within the agricultural watershed model Soil and Water Assessment Tool (SWAT), were investigated for their ability to simulate water temperatures accurately throughout the year. The original temperature model within...
Resource Type:: Masters Thesis
Full Text:: presented on July 15, 2016. Title: Stream Temperature Modeling for Marys River Watershed Abstract

Eyes on the Seafloor : Using Video Tools to Monitor Benthic Communities at Dredged Material Disposal Sites at the Mouth of the Columbia River

Creator:: Fields, Stephanie A.
Abstract:: The mouth of the Columbia River (MCR) is an intersection of more than a river and ocean, but also multiple economically valuable activities including dredging to maintain a deep draft shipping channel and an active Dungeness crab (Metacarcinus magister) fishery. More than three million cubic meters of sediment are annually...
Resource Type:: Masters Thesis
Full Text:: the mouth of the Columbia River, OR. The North Jetty is visible extending from the Washington side

Connecting Tidal-fluvial Life Histories to Survival of McKenzie River Spring Chinook Salmon (Oncorhynchus tshawytscha)

Creator:: Rose, Gordon W.
Abstract:: Chinook salmon returns to the Columbia River basin have declined due to impacts of a growing human population, despite significant mitigation expenditures. Consequently, fisheries managers have become focused on recovery and long-term viability of at-risk populations. A viable population depends, in part, on the connectivity and quality of diverse habitat...
Resource Type:: Masters Thesis
Full Text:: River for Surviving Spring Chinook Salmon (Oncorhynchus tshawytscha) from the McKenzie River, OR

Sediment Pulse Behavior in Gravel-bedded Rivers

Creator:: Pace, Kylie M.
Abstract:: As dams approach the end of their useful life, there is need to predict where and how accumulated sediment will move following their removal to estimate impacts on aquatic habitat and infrastructure. Flume studies suggest that sediment pulses disperse in place for most dams, but it is hypothesized that a...
Resource Type:: Masters Thesis
Full Text:: !1)!investigating!whether!dispersion!or! translation! dominates! pulse! behavior! observed! in! the

ScholarsArchive@OSU

Historical Change and the Hydrogeomorphic Context of Present-day Floodplain Forests in the Willamette Valley, Oregon

Extrinsic and Intrinsic Factors Associated with Reproductive Success of Caspian Terns (Hydroprogne caspia) at East Sand Island, Columbia River Estuary

Laws, regulations, and management plans to improve streamflow and stream temperature : a case study in the North Fork Burnt River Watershed

Why pest plant control and native plant establishment failed : a restoration autopsy

Double-crested Cormorants (Phalacrocorax auritus) and Brandt’s Cormorants (P. penicillatus) Breeding at East Sand Island in the Columbia River Estuary : Foraging Ecology, Colony Connectivity, and Overwinter Dispersal

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

Stream Temperature Modeling for Marys River Watershed

Eyes on the Seafloor : Using Video Tools to Monitor Benthic Communities at Dredged Material Disposal Sites at the Mouth of the Columbia River

Connecting Tidal-fluvial Life Histories to Survival of McKenzie River Spring Chinook Salmon (Oncorhynchus tshawytscha)

Sediment Pulse Behavior in Gravel-bedded Rivers

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