Index Catalog // ScholarsArchive@OSU

Black bear population ecology

Creator:: Lindzey, Frederick Grier
Abstract:: Despite relatively mild weather, black bears (Ursus americanus) in southwestern Washington entered dens and remained for an average of 126 days. Bears entered their dens during a 5-week period which began on 21 October. A significant difference (P < 0.05) was found among the average dates of den entrance of...
Resource Type:: Dissertation
Full Text:: Black bear population ecology AN ABSTRACT OF THE

The ecology of Mountain Quail in Oregon

Creator:: Pope, Michael D. (Michael Dickens)
Abstract:: Mountain Quail (Oreortyx pictus) populations have declined in many areas of the western Great Basin during the past century. Yet the life history of this species is little known. From 1997 to 2000, I studied radio-marked Mountain Quail in Hell's Canyon in northeastern Oregon, in the Cascade Mountains of southwestern...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Wildlife Science presented on February 22, 2002. Title: The Ecology of

Blue grouse winter ecology in northeastern Oregon

Creator:: Pelren, Eric C.
Resource Type:: Dissertation
Full Text:: Doctor of Philosophy in Wildlife Science presented on June 21. 1996. Title: Blue Grouse Winter Ecology

Larval ecology of Pandalus jordani Rathbun

Creator:: Rothlisberg, Peter Charles
Resource Type:: Dissertation
Full Text:: Larval ecology of Pandalus jordani Rathbun AN ABSTRACT OF

Physiological ecology of western juniper (Juniperus occidentalis hook. subsp. occidentalis)

Creator:: Miller, Patricia M.
Abstract:: Patterns and costs of root/shoot allocations, response to reductions of above and below-ground tissue and to fertilization with nitrate and ammonium, and seasonal courses of physiological processes were measured on juvenile, small-adult, and large-adult Juniperus occidentalis growing in the field under ambient environmental conditions in eastern Oregon. Adult foliage had...
Resource Type:: Dissertation

The ecology of the timberline and alpine vegetation of the Three Sisters

Creator:: Van Vechten, George Wendell, III
Abstract:: This is a study of the ecology of the timberline and alpine vegetation of the Three Sisters which are located in the central Oregon Cascades. The Sisters are a close group of three 1O,000-foot volcanic peaks. Volcanic activity within the last few hundred years as well as recent glaciation have...
Resource Type:: Dissertation

The landscape ecology of secondary tropical forest in montane Costa Rica

Creator:: Helmer, Eileen Hoey
Abstract:: Previous difficulties mapping tropical forest successional stage with satellite imagery may be one of the reasons why little is known about what socioeconomic and biophysical factors control tropical secondary forest pattern over landscapes. Additional remote sensing challenges occur in regions with steep topography, because the spectral responses of land covers...
Resource Type:: Dissertation

Fire ecology and management in plant communities of Malheur National Wildlife Refuge, southeastern Oregon

Creator:: Young, Richard P.
Abstract:: This research assesses prescribed burning as a habitat management technique in wetlands and associated upland communities of Malheur National Wildlife Refuge, southeastern Oregon. Experimental burns were conducted to evaluate fire behavior and effects in wetland and upland habitats, and, fire effects on Cirsium arvense. Wetland plant communities were monotypic stands...
Resource Type:: Dissertation

Ecology of feral pigs on Santa Catalina Island

Creator:: Baber, Daniel W.
Abstract:: A feral pig population on Santa Catalina Island, California, was studied for 17 months beginning in July 1980. Density was estimated to be 21 to 34 pigs/km² (95% confidence interval) using capture-recapture techniques. Dry season home ranges determined from radio-telemetry data were small and differed significantly between boars and sows....
Resource Type:: Dissertation

Evolution and ecology of the Ceanothus-Frankia symbiosis

Creator:: Jeong, Soon-Chun
Abstract:: The evolutionary relationship between Frankia and actinorhizal plants was evaluated by reconstructing molecular phylogenetic trees from nifH, 16S rDNA, and rbcL nucleotide sequences. Subgroupings in Frankia phylogenetic trees reconstructed from nifH and from 16S rDNA sequences were consistent in terms of plant origins of Frankia strains. Although the branching order...
Resource Type:: Dissertation
Full Text:: ECOLOGY OF THE CEANOTHUS- FRANKIA SYMBIOSIS Abstract approved: The evolutionary relationship between

ScholarsArchive@OSU

Black bear population ecology

The ecology of Mountain Quail in Oregon

Blue grouse winter ecology in northeastern Oregon

Larval ecology of Pandalus jordani Rathbun

Physiological ecology of western juniper (Juniperus occidentalis hook. subsp. occidentalis)

The ecology of the timberline and alpine vegetation of the Three Sisters

The landscape ecology of secondary tropical forest in montane Costa Rica

Fire ecology and management in plant communities of Malheur National Wildlife Refuge, southeastern Oregon

Ecology of feral pigs on Santa Catalina Island

Evolution and ecology of the Ceanothus-Frankia symbiosis

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