Index Catalog // ScholarsArchive@OSU

Relationships, communication, and power in Willamette Valley watershed councils : toward building resilient collaborative pathways

Creator:: Myhre, Andrea L.
Abstract:: The purpose of this research is to investigate how stakeholders involved in collaborative watershed groups in Oregon work with each other to form ideas and take action. Most collaboration efforts include encouraging a high level of trust with a great value placed on relationships and partners, being open and flexible,...
Resource Type:: Masters Thesis
Full Text:: watershed council participants, who also trusted the councils to address their ideas and concerns

Breeding site selection by coho salmon (Oncorhynchus kisutch) in relation to large wood additions and factors that drive reproductive success

Creator:: Clark, Steven
Abstract:: The fitness of female Pacific salmon (Oncorhynchus spp.) with respect to breeding behavior can be partitioned into at least four components: survival to reproduction, competition for breeding sites, success of egg incubation, and suitability of the local environment near breeding sites for early rearing of juveniles. Accordingly, breeding sites should...
Resource Type:: Masters Thesis
Full Text:: study was conducted in Little Wolf Creek (area =23.75 km 2 ), a tributary of Wolf Creek in the Umpqua

Passage, migration behavior, and autoecology of adult Pacific lamprey at Winchester Dam and within the North Umpqua River Basin, Oregon, USA

Creator:: Lampman, Ralph Tatsuo
Abstract:: The extensive reduction in adult Pacific lamprey (Entosphenus tridentatus) counts at many hydroelectric dams in the northwestern USA signals a substantial decline in lamprey numbers across the entire region in the past 40 to 50 years. Among the many potential causes of this decline, obstruction of migration routes has likely...
Resource Type:: Masters Thesis
Full Text:: Winchester Dam and within the North Umpqua River Basin, Oregon, USA Abstract approved

Effects of wildfire on growth and demographics of coastal cutthroat trout in headwater streams

Creator:: Heck, Michael P.
Abstract:: Wildfire is a largely terrestrial perturbation broadly recognized as an agent of disturbance and ecological change in forested biomes. Effects of post-fire conditions on biotic components of aquatic systems have been less well-documented, although hypothetically, the two are strongly connected. In fact, the influence of wildfire may be most profound...
Resource Type:: Masters Thesis
Full Text:: the North Umpqua basin of western Oregon. Burn severities ranged from moderate to severe. A

Assessing the Current State of Transboundary Cooperation in the International Columbia River Basin

Creator:: Timboe, Ingrid A.
Abstract:: The Columbia River Treaty (CRT) is often used as an example of how treaties can work to normalize, regulate, and improve the cooperative management of shared water resources between basin countries. Few would argue that, in its limited mandate to regulate hydropower generation and flood risk management for downstream communities,...
Resource Type:: Masters Thesis
Full Text:: the Northwest Power & Conservation Council and the Columbia Basin Trust, in particular John Harrison

A spatially explicit model for allocating conservation efforts : the Grand Ronde River basin, Oregon

Creator:: Watanabe, Michio
Abstract:: The spatial and dynamic pattern of landscape changes has a profound effect on the supply of environmental services, including the provision of habitat for fish and wildlife. Spatial heterogeneity is a common feature of landscapes in the Pacific Northwest, most notably in areas important to the production of salmonid fish...
Resource Type:: Masters Thesis
Full Text:: . Title: A Spatially Explicit Model for Allocating Conservation Efforts: The Grande Ronde River Basin

Do vigorous young forests reduce streamflow? Results from up to 54 years of streamflow records in eight paired-watershed experiments in the H. J. Andrews and South Umpqua Experimental Forests

Creator:: Perry, Timothy D.
Abstract:: This study quantified the magnitude and timing of summer streamflow deficits in paired-watershed experiments in the Cascade Range of Oregon where mature and old-growth conifer forests were subjected to clearcutting, patch cutting, and overstory thinning treatments in the 1960s and 1970s. Hydrologic effects of clearcutting, small-patch cutting, and overstory thinning...
Resource Type:: Masters Thesis
Full Text:: Years of Streamflow Records in Eight Paired-watershed Experiments in the H. J. Andrews and South Umpqua

Reconnecting aquatic habitats : validating historical habitat use by anadromous fishes using telemetry and stable isotope analysis above barriers

Creator:: Lewis, Sierra Koch
Abstract:: I conducted a study to identify potential spawning habitat for anadromous salmonids above a 60-year-old hydropower dam in the headwaters of the North Umpqua River in Oregon. Like many other historical salmonid-bearing rivers, little documentation exists for anadromous fish presence above potential natural obstacles upstream of Soda Springs Dam. My...
Resource Type:: Masters Thesis
Full Text:: also investigated evidence of historical anadromy throughout the North Umpqua River basin using

Thirty-five years of forest succession in southwest Oregon : vegetation response to three distinct logging treatments

Creator:: Arthur, Aaron Stone
Abstract:: This study examined patterns and controls on 35-years of forest succession following logging in the 236 ha South Umpqua Experimental Forest within the Umpqua National Forest in southwestern Oregon. Prior to logging, the overstory in all three watersheds (~50% cover) was composed of Douglas-fir (30-40% cover), grand fir (2 to...
Resource Type:: Masters Thesis
Full Text:: South Umpqua Experimental Forest. WS No. 1 2 3 4 Watershed area (ha) 69.2 68.4 49.8

Ceratomyxa shasta-related concerns for reintroduced anadromous salmonids into the Upper Klamath Basin, CA-OR, USA

Creator:: Hurst, Charlene N.
Abstract:: The myxozoan parasite of salmonids, Ceratomyxa shasta, is established throughout the Klamath River, CA-OR, with high parasite densities below the series of dams and above the dams (upper basin) in the northernmost tributary, the Williamson River (WMR). Two objectives were designed to address concerns about C. shasta effects on reintroduced...
Resource Type:: Masters Thesis
Full Text:: Concerns for Reintroduced Anadromous Salmonids into the Upper Klamath Basin, CA-OR, USA

ScholarsArchive@OSU

Relationships, communication, and power in Willamette Valley watershed councils : toward building resilient collaborative pathways

Breeding site selection by coho salmon (Oncorhynchus kisutch) in relation to large wood additions and factors that drive reproductive success

Passage, migration behavior, and autoecology of adult Pacific lamprey at Winchester Dam and within the North Umpqua River Basin, Oregon, USA

Effects of wildfire on growth and demographics of coastal cutthroat trout in headwater streams

Assessing the Current State of Transboundary Cooperation in the International Columbia River Basin

A spatially explicit model for allocating conservation efforts : the Grand Ronde River basin, Oregon

Do vigorous young forests reduce streamflow? Results from up to 54 years of streamflow records in eight paired-watershed experiments in the H. J. Andrews and South Umpqua Experimental Forests

Reconnecting aquatic habitats : validating historical habitat use by anadromous fishes using telemetry and stable isotope analysis above barriers

Thirty-five years of forest succession in southwest Oregon : vegetation response to three distinct logging treatments

Ceratomyxa shasta-related concerns for reintroduced anadromous salmonids into the Upper Klamath Basin, CA-OR, USA

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