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

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

Spotted owls, great horned owls, and forest fragmentation in the central Oregon Cascades

Creator:: Johnson, David Harold, 1956-
Resource Type:: Masters Thesis
Full Text:: . Forest Service Pacific Northwest Research Station and Oregon State University (Supplement PNW 89-457

Selection of day roosts by female long-legged myotis (Myotis volans) in forests of the central Oregon Cascades

Creator:: Ormsbee, Patricia
Abstract:: Measuring habitat selection by bats is complicated by their intricate life cycle. Scaling habitat measurements to reflect a hierarchal habitat selection process can help to define habitat associations of bats. I assessed day roost habitat of female long-legged myotis at four scales: the roost structure, micro-habitat surrounding the roost, the...
Resource Type:: Masters Thesis

Influence of limited access roads on Roosevelt elk in the Oregon Coast Range

Creator:: Cole, Eric K.
Abstract:: No studies have evaluated the effects of limited vehicle access on movements, survival and habitat use of Roosevelt elk (Cervus elaphus roosevelti) . We installed twenty gates, restricting motorized vehicle access by the public in seven discrete Road Management Areas (RMAs), comprising 35% of the study area. We radio-tracked 31...
Resource Type:: Masters Thesis

Activity of bats in thinned, unthinned, and old-growth forests in the Oregon Coast Range

Creator:: Humes, Marcia Lynn
Abstract:: Ten species of bats occur in the Oregon Coast Range and are hypothesized to be associated with late-successional forests. The development of characteristics of late-successional forests in young forest stands can be accelerated through silvicultural practices such as thinning I examined the effects of thinning on the use of forests...
Resource Type:: Masters Thesis

Time budget and habitat use patterns of marbled godwits (Limosa fedoa beringiae) breeding on the Alaska Peninsula

Creator:: Mehall-Niswander, Angela C.
Abstract:: Diurnal time budgets and habitat use patterns of breeding Ugashik marbled godwits (Limosa fedoa beringiae) were studied on the north-central portion of the Alaska Peninsula during spring and summer 1995-1996. Marbled godwits were observed from blinds and behaviors were described for the four phases of the breeding season: pair-formation, egg-laying,...
Resource Type:: Masters Thesis

Predicting the distribution of the fisher (Martes pennanti) in northwestern California, U.S.A. : using survey data and GIS modeling

Creator:: Carroll, Carlos
Abstract:: Forest carnivores such as the fisher have frequently been the target of conservation concern due to their association with older forests and assumed sensitivity to landscape-level habitat alteration. Although the fisher has been extirpated from most of its former range in the western U.S., it is still found throughout much...
Resource Type:: Masters Thesis

Influence of wetland landscape structure of shorebirds wintering in an agricultural valley

Creator:: Taft, Oriane Williams
Abstract:: Understanding how wetland birds use habitat is pivotal to developing successful and beneficial conservation strategies. Although it has been an ardent topic in forest research for some time, how species interact with the spatial patterning of habitat across a landscape (i.e., landscape structure) has been more or less neglected in...
Resource Type:: Dissertation

Biodiversity in managed forests of western Oregon : species assemblages in leave islands, thinned, and unthinned forests

Creator:: Wessell, Stephanie J.
Abstract:: Both leave islands, or green tree retention clusters, and thinning prescriptions have been proposed as alternative silvicultural strategies designed to sustain the structural and biological diversity of managed forests. However, the relationship of the physical structure of leave islands and thinned forests to their associated microclimates, flora, and fauna remain...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Black bear population ecology

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

Spotted owls, great horned owls, and forest fragmentation in the central Oregon Cascades

Selection of day roosts by female long-legged myotis (Myotis volans) in forests of the central Oregon Cascades

Influence of limited access roads on Roosevelt elk in the Oregon Coast Range

Activity of bats in thinned, unthinned, and old-growth forests in the Oregon Coast Range

Time budget and habitat use patterns of marbled godwits (Limosa fedoa beringiae) breeding on the Alaska Peninsula

Predicting the distribution of the fisher (Martes pennanti) in northwestern California, U.S.A. : using survey data and GIS modeling

Influence of wetland landscape structure of shorebirds wintering in an agricultural valley

Biodiversity in managed forests of western Oregon : species assemblages in leave islands, thinned, and unthinned forests

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