Index Catalog // ScholarsArchive@OSU

A geographical framework for assessing longitudinal patterns in stream habitat and fish distribution

Creator:: Torgersen, Christian E.
Abstract:: New approaches are needed to quantify and understand spatial patterns of stream fishes and their environment. Concepts in riverine ecology emphasize the importance of thermal zones and gradual longitudinal changes in physical habitat and biota, but little is known about spatial variability within the river continuum. I present a conceptual...
Resource Type:: Dissertation
Full Text:: : A Geographical Framework for Assessing Longitudinal Patterns in Stream Habitat and Fish

Advantages of habitat selection and sexual segregation in mule and white-tailed deer

Creator:: Main, Martin Benjamin
Abstract:: I studied sexual segregation in mule deer (Odocoileus hemionus) and white-tailed deer (Q. virginianus) in different environments and at different population densities to test the hypothesis that sexual segregation occurs in ungulates as the result of different reproductive strategies; females select habitat and behave in manners primarily designed to promote...
Resource Type:: Dissertation

Agriculture and wildlife : an economic analysis of waterfowl habitat management on farms in western Oregon

Creator:: Rasker, Ray
Abstract:: This study is a policy analysis of the incentives, including fee hunting, as a means to promote wildlife habitat development on private agricultural land. The management of habitat for migratory waterfowl in Western Oregon was investigated as a case study. Three separate analysis techniques were employed, presented as independent manuscripts....
Resource Type:: Dissertation

An economic analysis of alternative water allocations and habitat investments for anadromous fish production, John Day Basin, Oregon

Creator:: Cerda, Arcadio Alberto
Abstract:: This thesis focuses on the economic efficiency of alternative habitat, streamfiow, and land use allocations within a major drainage of the Pacific Northwest. Specifically, productivity of present habitat and streamfiow conditions is evaluated with respect to anadromous fish species (chinook salmon and steelhead trout) in the John Day River Basin,...
Resource Type:: Dissertation
Full Text:: Alternative Water Allocations and Habitat Investments for Anadromous Fish Production, John Day Basin, Oregon

An interpretation of synecologic relationships in the Billy Meadows area of the Wallowa-Whitman National Forest

Creator:: Johnson, Charles G.
Resource Type:: Dissertation
Full Text:: objectives were to: (1) identify the plant communities and classify them by habitat types; (2) establish

Analysis and history of the Oregon otter-trawl fishery

Creator:: Harry, George Yost, 1919-
Abstract:: The objective of the thesis is to present data upon which the management of the Oregon otter-trawl fishery can be based. In addition, a history of the Oregon trawl fishery is presented. A summary of gear development by many of the vessels in the Oregon fleet is presented in table...
Resource Type:: Dissertation
Full Text:: The objective of the thesis is to present data upon which the management of the Oregon otter-trawl

Biophysical factors driving the distribution and abundance of redband/steelhead trout (Oncorhynchus mykiss gairdneri) in the South Fork John Day River Basin, Oregon, USA

Creator:: Madriñán, Luis Francisco
Abstract:: The overall goal of this study was to identify multiple scales of habitat use and habitat electivity by redband/steelhead trout and define the limiting factors affecting the distribution patterns of this species during summer flows. The main objective in chapter 2 was to identify the most important habitat associations that...
Resource Type:: Dissertation
Full Text:: , 2004, State of Oregon, WRD, 1986) Fish and habitat I classified reaches of the mainstem and the two

Channel morphology and hydraulic characteristics of torrent-impacted forest streams in the Oregon Coast Range, U.S.A.

Creator:: Kaufmann, Philip Robert
Abstract:: Tracer-derived estimates of hydraulic resistance and transient hydraulic storage were related to measures of pool volume and channel morphometric variability in small streams of the Oregon coast, U.S.A. Fourteen 100 m study reaches in 3 streams were selected to compare channel and hydraulic characteristics in streams representing a time series...
Resource Type:: Dissertation

Comparative foraging ecology of five species of Pacific seabirds : multi-scale analyses of marine habitat use

Creator:: Suryan, Robert
Abstract:: Seabirds are an integral component of marine ecosystems, however, because humans typically observe only snapshots of their lives at sea, our understanding of seabird foraging ecology is often limited. A more complete understanding of the ecological roles of seabirds and identification of critical foraging habitats requires the ability to follow...
Resource Type:: Dissertation
Full Text:: Pacific Seabirds: Multi-scale Analyses of Marine Habitat Use. Abstract approved

Competitive interactions and resource partitioning between northern spotted owls and barred owls in western Oregon

Creator:: Wiens, J. David
Abstract:: The federally threatened northern spotted owl (Strix occidentalis caurina) is the focus of intensive conservation efforts that have led to much forested land being reserved as habitat for the owl and associated wildlife species throughout the Pacific Northwest of the United States. Recently, however, a relatively new threat to spotted...
Resource Type:: Dissertation
Full Text:: Barred Owls in Western Oregon Abstract approved

ScholarsArchive@OSU

A geographical framework for assessing longitudinal patterns in stream habitat and fish distribution

Advantages of habitat selection and sexual segregation in mule and white-tailed deer

Agriculture and wildlife : an economic analysis of waterfowl habitat management on farms in western Oregon

An economic analysis of alternative water allocations and habitat investments for anadromous fish production, John Day Basin, Oregon

An interpretation of synecologic relationships in the Billy Meadows area of the Wallowa-Whitman National Forest

Analysis and history of the Oregon otter-trawl fishery

Biophysical factors driving the distribution and abundance of redband/steelhead trout (Oncorhynchus mykiss gairdneri) in the South Fork John Day River Basin, Oregon, USA

Channel morphology and hydraulic characteristics of torrent-impacted forest streams in the Oregon Coast Range, U.S.A.

Comparative foraging ecology of five species of Pacific seabirds : multi-scale analyses of marine habitat use

Competitive interactions and resource partitioning between northern spotted owls and barred owls in western Oregon

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