Index Catalog // ScholarsArchive@OSU

Conservation biology of Plagiobothrys hirtus (Boraginaceae) : evaluation of life history and population enhancement

Creator:: Amsberry, Kelly
Abstract:: Plagiobothrys hirtus (Boraginaceae) is a state and federally listed endangered plant found only in Douglas County, Oregon. This vernal pool endemic has historically been threatened by agricultural conversion of seasonal wetlands in the Sutherlin area, and is currently being eradicated as habitat is lost due to the rapid urban development...
Resource Type:: Masters Thesis
Full Text:: found only in Douglas County, Oregon. This vernal pool endemic has historically been threatened by

The geology of the southeast one-quarter of the Tyee quadrangle and part of the adjacent Sutherlin quadrangle, Oregon

Creator:: Hampton, Eugene Randolph
Resource Type:: Masters Thesis

Priority evaluation of fire hazard in the Douglas Forest Protective Association district in Oregon

Creator:: Mohr, Francis R.
Abstract:: This study analyzes past forest fire behavior on a selected area in the Oregon Cascades in an attempt to evaluate level of fire hazard on selected vegetational areas. Vegetational areas were defined in five broad classes: Merchantable Douglas-fir Stands, Non-merchantable Douglas-fir Stands, Oak- Madrone Stands, Non- forest Lands, and Non-stocked...
Resource Type:: Masters Thesis

Douglas County, Oregon : resource atlas : natural, human, economic, public

Creator:: Oregon State University. Extension Service and Valde, Gary
Resource Type:: Technical Report
Full Text:: Douglas County, Oregon RESOURCE ATLAS NATURAL

Income, employment and expenditure patterns in a timber-based economy : Douglas County, Oregon : 1975

Creator:: Oregon State University. Agricultural Experiment Station, Flacco, Paul Richard, 1950-, and Youmans, Russell.
Abstract:: Published November 1977. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Timber-Based Economy: Douglas County, Oregon 1975 Circular of Information 664 November 1977

An experiment to assist in determining the advisability of immediate planting to supplement natural regeneration of Douglas-fir in Benton County, Oregon

Creator:: Brown, Robert R.
Resource Type:: Undergraduate Thesis
Full Text:: immediate planting to supplement natural regeneration of douglas-fir in Benton County, Oregon AN

Douglas County outlook conference : March 1957 committee reports

Creator:: Oregon State College. Extension Service, Douglas County (Or.), and Long Range Planning Conference (1957 : Douglas County, Or.)
Abstract:: Published March 1957. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: . 609.090 of Oregon Law, which has to do with the i'estriction of dOgs running at large in the county, and

Report of the Douglas County Agricultural Outlook Conference : 1936

Creator:: Oregon State College. Extension Service, Douglas County (Or.), and Long Range Planning Conference (1936 : Douglas County, Or.)
Abstract:: Published February 1936. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Oregon. Farming conditions In Douglas county are quite different from those in eastern and middle west

Long range planning conference report : Douglas County, Oregon : 1968

Creator:: Oregon State University. Extension Service, Douglas County (Or.), and Long Range Planning Conference (1968 : Douglas County, Or.)
Abstract:: Published January 1968. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: LONG RANGE PLANNING I Douglas County, '- - I Oregon 1968

Characteristics & use capabilities of Douglas area soils

Creator:: Dull, Elwood Wesley
Resource Type:: Masters Thesis
Full Text:: Precipitatii at Roseburg, Douglas County, Oregon. .8 II Key to Douglas Area Soils and Their Reclamation

The economic consequences of intensifying forest management in Douglas County, Oregon

Creator:: Dippon, Duane R.
Abstract:: The objective of this study was to measure the consequences of alternative forest management intensification programs. These consequences include future harvest levels, silvicultural labor and capital requirements, and the income and employment generated directly and indirectly. The system utilizes the Timber Resource Economic Estimation System (TREES) model, a harvest scheduling...
Resource Type:: Dissertation

Movements, habitat associations, and survival of Columbian white-tailed deer in western Oregon

Creator:: Ricca, Mark A.
Abstract:: Columbian white-tailed deer (Odocoileus virginianus leucurus, CWTD) are a geographically isolated and federally endangered sub-species for which there is a paucity of recent ecological information. I described and examined sources of variation in spatial use patterns (i.e. home range, areas of concentrated use, and movements), habitat associations, and survival for...
Resource Type:: Masters Thesis

Future climate projections. Douglas County : May 2023

Creator:: Dalton, Meghan, Fleishman, Erica, Bachelet, Dominique, and Rupp, David
Abstract:: In this report, we present climate projections for Douglas County that are relevant to specified natural hazards for the 2020s (2010–2039) and 2050s (2040–2069) relative to the 1971–2000 historical baseline. The projections are based on multiple global climate models for both a lower greenhouse gas emissions scenario (RCP 4.5) and...
Resource Type:: Technical Report
Full Text:: Projections Douglas County, Oregon May 2023 Oregon Climate Change Research Institute

Geology and mineralization of the Banfield and Rowley volcanogenic massive sulfide deposits, Douglas Co., Oregon

Creator:: Fifarek, Richard H.
Resource Type:: Masters Thesis

Ecological relationships between Columbian white-tailed and black-tailed deer in southwest Oregon

Creator:: Whitney, Lowell W.
Abstract:: I examined ecological relationships and mechanisms of coexistence for sympatric populations of Columbian white-tailed (Odocoileus virginianus leucurus) and black-tailed deer (Odocoileus hemionus columbianus) in Douglas County, Oregon, from September 1997 to August 1998. Horseback transects were used to describe spatial distributions, population overlap, and habitat use for both species. Behavioral...
Resource Type:: Masters Thesis

Umpqua drainage basin silver salmon spawning areas : Map

Creator:: Oregon. State Water Resources Board
Abstract:: File no. 16.1092
Resource Type:: Map or Cartographic Material

Umpqua drainage basin steelhead trout spawning area : Map

Creator:: Oregon. State Water Resources Board
Abstract:: File no. 16.1092
Resource Type:: Map or Cartographic Material

Economic impact of public investments in small-boat facilities and county and state parks in the Lower Umpqua River area of Douglas County, Oregon

Creator:: Schmisseur, Ed, Youmans, Russell C., Boodt, William A., Oregon State University. Water Resources Research Institute, United States. Army. Corps of Engineers. Portland District, Oregon State University. Agricultural Experiment Station, Pacific Northwest River Basins Commission, and Oregon. State Water Resources Board. Economic Task Force
Resource Type:: Technical Report
Full Text:: atlis Oregon • . v 5 ECONOMIC IMPACT OF PUBLIC INVESTMENT S IN SMALL-BOAT FACILITIES AND COUNTY

The Ore bin ; Vol. 35 No. 5 (May 1973)

Creator:: Oregon. Dept. of Geology and Mineral Industries and Lund, Ernest H.
Abstract:: This study is concerned with the post-Ice Age (Holocene) dunes in the coast segment between Coos Bay on the south and Sea Lion Point on the north. This is the longest strip of dunes along the Oregon coast and extends for a distance of about 55 miles. It is divided...
Resource Type:: Journal
Full Text:: exception of Curry County south of Port Orford, dunes are a common landform along the Oregon coast. Older

Douglas County, Oregon : structure of a timber county economy

Creator:: Youmans, Russell C., Darr, David R., Fight, Roger, Schweitzer, Dennis L., and Oregon State University. Agricultural Experiment Station
Abstract:: This report describes the 1970 economy of Douglas County, Oregon. An input-output model is presented and used to detail the interrelationships of the various sectors. An analytical framework is presented that permits an appraisal of the direction and magnitude of change in the county economy that would result from changes...
Resource Type:: Technical Report
Full Text:: "-'t<^*-.«-™' PC ■ -ss'ik "• •>-. .,' • Douglas County Oregon: Structure of a Timber County

Daily activity patterns, survival, and movements of red tree voles (Arborimus longicaudus) in western Oregon

Creator:: Swingle, James Kerr
Abstract:: We radiocollared a sample of 61 red tree voles in Douglas County, Oregon and monitored their movements to determine daily, seasonal, and sexual differences in behavior and home range attributes. We also collected information on nest attributes, survival, and dispersal of the radiocollared voles. Individual voles were monitored for periods...
Resource Type:: Masters Thesis
Full Text:: Oregon. Eric D. Forsman We radiocollared a sample of 61 red tree voles in Douglas County, Oregon and

Historic Survival Rates and Cause-Specific Mortality for Columbian Black-Tailed Deer in Southwest Oregon

Creator:: Groot, Kevyn A.
Abstract:: In contrast with other Odocoileus species, Columbian black-tailed deer (Odocoileus hemionus columbianus) population dynamics are not well understood throughout the species’ range. Concerns over apparent long-term population declines have prompted efforts to fill basic knowledge gaps including estimates of vital rates (fecundity, recruitment and survival) and cause-specific mortality. The Oregon...
Resource Type:: Masters Thesis
Full Text:: Columbian Black-Tailed Deer in Southwest Oregon AN ABSTRACT OF THE THESIS OF Kevyn A

Projected income and employment impacts of a decline in the timber resource base of a highly timber-dependent economy

Creator:: Flacco, Paul Richard
Resource Type:: Masters Thesis
Full Text:: are separated into their effects on each of nine income groups in Douglas County, Oregon

Comparison of methods to estimate population density of Pacific giant salamanders in small streams of the southern Oregon Cascades

Creator:: Leuthold, Niels C.
Abstract:: I compared hand sampling, two-pass multiple removal sampling, mark-recapture and catchability-based population estimates for the Pacific giant salamander (Dicamptodon tenebrosus) at 22 sites in 11 streams of Cascade Mountains of Oregon. Mark-recapture and catchability-based population estimates were not significantly different (p 0.86). Hand sampling and two-pass multiple removal population estimates...
Resource Type:: Masters Thesis
Full Text:: Oregon Cascades. Abstract approved: Stanley V. Gregory I compared hand sampling, two-pass multiple

Basin-scale variation in the spatial pattern of fall movement of juvenile coho salmon in the West Fork Smith River, Oregon

Creator:: Hance, Dalton J.
Abstract:: from the summer dry season to the winter wet season. Such movement that connects summer and winter habitats may be particularly important for coho salmon, O. kisutch, because availability of overwintering habitat can limit freshwater survival for this species. Here, I describe basin-scale variability in the spatial pattern of fall...
Resource Type:: Masters Thesis
Full Text:: West Fork Smith River, Oregon Abstract approved:_____________________________________________________

Factors influencing within-watershed genetic variation of coastal cutthroat trout in Camp Creek, Oregon

Creator:: Wofford, John E.B.
Abstract:: Because human land use activities often result in increased fragmentation of headwater stream habitats, a better understanding of the effects of fragmentation on the genetic heterogeneity of stream salmonids is useful for effective management. We used eight microsatellites to examine the genetic structure of potamodromous coastal cutthroat trout (Oncorhynchus clarki...
Resource Type:: Masters Thesis
Full Text:: Influencing Within-Watershed Genetic Variation of Coastal Cutthroat Trout in Camp Creek, Oregon. Abstract

Seasonal changes in distribution of coastal cutthroat trout in an isolated watershed

Creator:: Hendricks, Steve
Abstract:: In an effort to identify seasonal distribution patterns and habitat requirements of coastal cutthroat trout Oncorhynchus clarki clarki, movement of tagged and marked individuals (35 radio-tagged, 753 PIT-tagged, and 5,322 fin-clipped) was monitored over a 14-month period in an isolated watershed in southwestern Oregon. Emigration out of the basin was...
Resource Type:: Masters Thesis
Full Text:: OF FIGURES Figure Page Camp Creek study area, Douglas County, Oregon. 7 Monthly average staff

The Ore bin ; Vol. 25 No. 6 (June 1963)

Creator:: Oregon. Dept. of Geology and Mineral Industries and Libbey, Fay Wilmott, 1882-
Resource Type:: Journal
Full Text:: individual payroll in the county. Ashland Mine: Owners are Fred and Dewey Van Curler, Ashland, Oregon. The

The Ore bin ; Vol. 26 No. 10 (October 1964)

Creator:: Oregon. Dept. of Geology and Mineral Industries, Staples, Lloyd William, 1908-, Brooks, Howard C., and Baldwin, Ewart Merlin, 1915-
Resource Type:: Journal
Full Text:: -Nonpareil district, Douglas County, Oregon: U.S. Geol . Survey Bull. 955-F, p. 225-251. Hoover, Linn, 1963

A guide to riparian tree planting in southwest Oregon

Creator:: Oregon State University. Extension Service, Bennett, Max, 1963-, and Ahrens, Glenn R.
Abstract:: Planting trees in riparian areas is increasingly common in Oregon as part of efforts to improve fish habitat, water quality, and other riparian functions. Yet tree survival and growth are poor in many projects, and some fail outright.
Resource Type:: Technical Report
Full Text:: and Josephine counties, and Glenn Ahrens, Extension forester, Clatsop County; both of Oregon State

Over-wintering diet, growth, and prey available to juvenile coho salmon (Oncorhynchus kisutch) in the West Fork Smith River, Oregon

Creator:: Olegario, Anthony
Abstract:: Over-winter growth of juvenile salmonids may be linked to ocean survival and thus species persistence. Diet, growth, and prey available to juvenile coho, Oncorhynchus kisutch, were examined from December 2004 to April 2005 in four tributaries of the West Fork Smith River (WFSR), Oregon. Juvenile coho growth rate and condition...
Resource Type:: Masters Thesis
Full Text:: Smith River basin. Douglas County, Oregon. Rectangles represent study reaches

Response of needle-litter decomposition and soil nitrogen mineralization to logging-debris manipulation and competing vegetation control in western Oregon and Washington

Creator:: Meehan, Nathan Andrew
Abstract:: Growing societal demand for forest products is pressuring managers to increase productivity from a finite land area, and it is expected that increased supply will come mostly from expansion of intensively managed stands. The USDA Forest Service and numerous collaborators created the Long-Term Soil Productivity (LTSP) network of research sites...
Resource Type:: Masters Thesis
Full Text:: Nitrogen Mineralization to Logging-Debris Manipulation and Competing Vegetation Control in Western Oregon

Variation in the timing of coho salmon (Oncorhynchus kisutch) migration and spawning relative to river discharge and temperature

Creator:: LovellFord, Rachel M.
Abstract:: Coho salmon (Oncorhynchus kisutch) migration and spawning are unique components of the salmon life cycle because they require synchrony of behavior with other individuals as well as with acceptable fluvial conditions. As with other organisms that exhibit group mating behavior, it is likely that environmental cues trigger coho salmon movement...
Resource Type:: Masters Thesis
Full Text:: Smith River basins (Oregon) with river discharge and water temperature data to ascertain whether these

Inorganic chemistry of water and bed sediment in selected tributaries of the South Umpqua River, Oregon, 1998

Creator:: Hinkle, Stephen R. and Geological Survey (U.S.)
Abstract:: This report presents results of an investigation of water and streambed-sediment quality in selected tributaries of the South Umpqua River. Concentrations of inorganic constituents in water (major and minor ions, nutrients, and trace elements) and streambed sediment (primarily trace elements), along with standard field parameters, are tabulated for samples collected...
Resource Type:: Technical Report

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

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