Index Catalog // ScholarsArchive@OSU

Functional relationships among songbirds, arthropods, and understory vegetation in Douglas-fir forests, western Oregon

Creator:: Hagar, Joan C.
Abstract:: Arthropods are important food resources for birds. Forest management activities can influence shrub-dwelling arthropods by affecting the structure and composition of understory shrub communities. Changes in abundance and species composition of arthropod communities in turn may influence the distribution and abundance of insectivorous birds. I examined relationships among bird abundance,...
Resource Type:: Dissertation

Interactions between grizzly bears and hikers in Glacier National Park, Montana

Creator:: Jope, Katherine Louise McArthur
Abstract:: Behavior of grizzly bears (Ursus arctos) toward people was studied by examining hikers' reports of grizzly bear observations and by intensively observing grizzlies in an area of Glacier National Park that was heavily used by day-hikers. Of concern were the apparent habituation of grizzly bears to people in the study...
Resource Type:: Masters Thesis
Full Text:: Bears and Hikers in Glacier National Park, Montana Abstract approved: Redacted for Privacy Edward E

Man and the land : an ecological history of fire and grazing on eastern Oregon rangelands

Creator:: Shinn, Dean Allison
Abstract:: Ecological and historical information are combined in examining the environmental influence of fire and grazing on rangelands in eastern Oregon through time. Competitive relationships between herbaceous and woody flora in the northern Great Basin are discussed, focusing broadly on the shrubsteppe regions 'of Franklin and Dyrness (1973) but with special...
Resource Type:: Masters Thesis
Full Text:: EASTERN OREGON RANGELANDS Abstract approved: Dr. Edward E. Starkey Ecological and historical

Nutrient and tannin concentrations of shrub leaves in managed and unmanaged forests of the Oregon Coast Range : implications for herbivores

Creator:: Lange, Karen M.
Abstract:: Many herbivores of the Pacific Northwest rely on forest understory shrub leaves for a source of nitrogen, energy, and moisture. I measured nitrogen, protein-binding capacity, and condensed tannin concentration as indicators of available nitrogen; cell wall constituents and lignin as indicators of available energy; and moisture concentration in young and...
Resource Type:: Masters Thesis

Nutritional ecology of cervids in old-growth forests in Olympic National Park, Washington

Creator:: Leslie, David M.
Abstract:: Nutritional ecology of unhunted and sympatric populations of Roosevelt elk, Cervus elaphus roosevelti, and Columbian black-tailed deer, Odocoileus hemionus columbianus, was investigated in old-growth forests of the Hoh Valley in Olympic National Park, Washington, from September 1979 to November 1981. Seasonal diets of both cervids generally were comprised of common...
Resource Type:: Dissertation
Full Text:: for Privacy Edward E. Starkey Nutritional ecology of unhunted and sympatric populations of

River-dependent bird species as potential indicators of ecosystem response to removal of dams on the Elwha River, Washington

Creator:: Blackie, Barbara
Abstract:: If two dams on the Elwha River are removed, the ecosystem will be open to the downstream flow of sediments and the upstream flow of marine nutrients in the form of anadromous fish. Nutrient enrichment may influence trophic dynamics of the entire ecosystem, extending beyond the aquatic boundary. I assessed...
Resource Type:: Masters Thesis
Full Text:: . Washington. Abstract approved: Signature redacted for privacy. Edward E. Starkey If two dams on the

Seasonal movements and distribution of migratory Roosevelt elk in the Olympic Mountains, Washington

Creator:: Schroer, Gregory L.
Abstract:: Seasonal movements, home ranges, core areas and habitat use patterns of hunted, migratory Roosevelt elk (Cervus elaphus roosevelti) were investigated on the Olympic Peninsula, Washington. Radio telemetry was used to obtain more than 3,100 locations of 9 elk from May 1984 - March 1985, and November - December, 1985. Radio-collared...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy Edward E. Starkey Seasonal movements, home ranges, core areas and habitat

Seasonal movements and habitat use of migratory elk in Mount Rainier National Park

Creator:: Cooper, Kevin Craig
Abstract:: Seasonal movements, habitat use, home range selection, and group interactions of Roosevelt elk (Cervus elaphus roosevelti) were studied in the upper White River watershed in west-central Washington. Over 2000 locations of 14 elk were recorded by radio-telemetry from April 1983 to December 1984. During winter, two herds used clearcut lands...
Resource Type:: Masters Thesis

Spatial and temporal distributions of western juniper in John Day Fossil Beds National Monument, Oregon

Creator:: Chen, Ya-Chian
Abstract:: Post-settlement juniper expansion in the western states has been reported for decades, including western juniper (Juniperus occidentalis Hook ssp. occidentalis) woodlands in the northwestern states. A 15 km2 study area in the Sheep Rock Unit of John Day Fossil Beds National Monument in eastern Oregon was selected to study spatial...
Resource Type:: Masters Thesis

The effects of prescribed burning on small mammal communities in Lava Beds National Monument, California

Creator:: Frenzel, Richard Wilmarth
Abstract:: The effects of prescribed burning on the abundance, species composition, and reproduction of small mammals were studied over a one year period. Two burn areas were studied, one in sagebrush/ bunchgrass and one in cheatgrass. The short-term effects were studied using monthly mark-recapture trapping on two treatment and two control...
Resource Type:: Masters Thesis
Full Text:: , CALIFORNIA Abstract approved: Redacted for privacy Dr. Edward E. Starkey The effects of prescribed burning

ScholarsArchive@OSU

Functional relationships among songbirds, arthropods, and understory vegetation in Douglas-fir forests, western Oregon

Interactions between grizzly bears and hikers in Glacier National Park, Montana

Man and the land : an ecological history of fire and grazing on eastern Oregon rangelands

Nutrient and tannin concentrations of shrub leaves in managed and unmanaged forests of the Oregon Coast Range : implications for herbivores

Nutritional ecology of cervids in old-growth forests in Olympic National Park, Washington

River-dependent bird species as potential indicators of ecosystem response to removal of dams on the Elwha River, Washington

Seasonal movements and distribution of migratory Roosevelt elk in the Olympic Mountains, Washington

Seasonal movements and habitat use of migratory elk in Mount Rainier National Park

Spatial and temporal distributions of western juniper in John Day Fossil Beds National Monument, Oregon

The effects of prescribed burning on small mammal communities in Lava Beds National Monument, California

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