Index Catalog // ScholarsArchive@OSU

Land cover at northern spotted owl nest and non-nest sites, east-central Coast Ranges, Oregon

Creator:: Perkins, John P.
Abstract:: This study examined the differences, at various scales, between northern spotted owl (Strix occidentalis caurina) nest sites and non-nest sites, i.e., sites where no nests were found during surveys, in the Coast Ranges of Oregon. I compared land cover around 41 owl nest sites (ONS) and 41 non-nest sites (NNS)...
Resource Type:: Masters Thesis
Full Text:: Northern Spotted Owl Nest and Non-nest Sites, East-central Coast Ranges, Oregon. , Abstract approved

Characteristics of forests at spotted owl nest sites in the Pacific Northwest

Creator:: Hershey, Kit
Abstract:: This study describes the composition and structure of forests within the immediate vicinity of Northern spotted owl (Strix occidentalis caurina) nest sites in the Klamath, Coast, and Cascade provinces of western Oregon and the Olympic province, Washington. I compared forest stand data collected at 105 nest sites with data from...
Resource Type:: Masters Thesis
Full Text:: of spotted owl nest sites in western Oregon and the Olympic Peninsula, and (2) test the null

Demography and habitat selection of northern spotted owls in post-fire landscapes of southwestern Oregon

Creator:: Clark, Darren A.
Abstract:: Several large wildfires in southwestern Oregon during the summers of 2001 and 2002 provided the opportunity to investigate the impacts of wildfire on northern spotted owls (Strix occidentalis caurina). I used radio-telemetry and demographic surveys to describe demographic performance and habitat selection of spotted owls in the areas burned by...
Resource Type:: Masters Thesis
Full Text:: . NORTHERN SPOTTED OWL HABITAT SELECTION IN POST-FIRE LANDSCAPES OF SOUTHWESTERN OREGON.……...………..…...85

Age-specific and lifetime reproductive success of known age Northern Spotted Owls on four study areas in Oregon and Washington

Creator:: Loschl, Peter J.
Abstract:: Northern Spotted Owls (Strix occidentalis caurina) are a long-lived forest owl and range-wide declines in their numbers have resulted in the species being listed as threatened under the endangered species act. While many studies have been focused on population trends and reproductive performance of Spotted Owls from different age-classes, none...
Resource Type:: Masters Thesis
Full Text:: Areas in Oregon and Washington. Abstract approved: Eric D. Forsman Northern Spotted Owls

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

Creator:: Johnson, David Harold, 1956-
Resource Type:: Masters Thesis
Full Text:: Klamath, Western Cascades, and Coast Range provinces in Oregon. They found spotted owl nest landscapes to

Demography, home range, and habitat selection of northern spotted owls in the Ashland Watershed

Creator:: Schilling, Jason W.
Abstract:: Northern Spotted Owls (Strix occidentalis caurina) inhabit productive forests that historically supported frequent, large, variable-severity fires in the Klamath province of southwestern Oregon occur in complex. The potential for high-severity wildfire remains high throughout this region, so remaining spotted owl habitat is at risk. An adaptive management approach to fire...
Resource Type:: Masters Thesis
Full Text:: for one male northern spotted owl in the northern Oregon Coast Range (Meiman et al. 2003). The

Dispersal of juvenile northern spotted owls in western Oregon

Creator:: Miller, Gary Scott
Abstract:: Dispersal of juvenile northern spotted owls (Strix occidentalis caurina) was studied in western Oregon from 1982-1985. The study was initiated to document the pattern of juvenile spotted owl dispersal, survival, habitat use, and possible effects of forest fragmentation on the dispersing juveniles in the Pacific Northwest Douglas-fir Region. Forty-eight juveniles...
Resource Type:: Masters Thesis

Landscape composition around northern spotted owl nests, central Cascade Mountains, Oregon

Creator:: Swindle, Keith A.
Abstract:: This study describes the composition of forest landscapes surrounding northern spotted owl (Strix occidentalis caurina) nests in the central Cascade Mountains of Oregon. I compared forest composition around 126 owl nests in 70 pair territories with forest composition around 119 points drawn randomly from all terrestrial cover-types, and around 104...
Resource Type:: Masters Thesis
Full Text:: Around Northern Spotted Owl Nests. Central Cascade Mountains. Oregon. Abstract approved: - E. Charles

The range expansion of the northern barred owl : an evaluation of the impact on spotted owls

Creator:: Kelly, Elizabeth G.
Abstract:: Since their range expansion into the Pacific Northwest, anecdotal evidence suggests that northern barred owls (Strix varia varia) may be displacing northern spotted owls (Strix occidentalis caurina). My objectives were to characterize barred owl distribution and population increase in Oregon, investigate spotted owl territory performance before and after barred owl...
Resource Type:: Masters Thesis
Full Text:: and population increase in Oregon, investigate spotted owl territory performance before and after

Geographic distributions of prey of the northern spotted owl in the central western Cascades, Oregon, 1988-2009

Creator:: Smoluk, Alexis
Abstract:: Spatial variation in the diet of the northern spotted owl (Strix occidentalis caurina) influences owl home ranges, and understanding this relationship will aid managers in forest management prescriptions that influence spotted owl recovery. This study describes the spatial variation in owl diet based on 4183 prey collected at 114 owl...
Resource Type:: Masters Thesis
Full Text:: Geographic Distributions of Prey of the Northern Spotted Owl in the Central Western Cascades, Oregon, 1988

ScholarsArchive@OSU

Land cover at northern spotted owl nest and non-nest sites, east-central Coast Ranges, Oregon

Characteristics of forests at spotted owl nest sites in the Pacific Northwest

Demography and habitat selection of northern spotted owls in post-fire landscapes of southwestern Oregon

Age-specific and lifetime reproductive success of known age Northern Spotted Owls on four study areas in Oregon and Washington

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

Demography, home range, and habitat selection of northern spotted owls in the Ashland Watershed

Dispersal of juvenile northern spotted owls in western Oregon

Landscape composition around northern spotted owl nests, central Cascade Mountains, Oregon

The range expansion of the northern barred owl : an evaluation of the impact on spotted owls

Geographic distributions of prey of the northern spotted owl in the central western Cascades, Oregon, 1988-2009

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