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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:: assess Northern Spotted Owl reproductive performance using a continuous age-specific explanatory

Creator:: Giovanini, John
Abstract:: This dissertation is about statistical methods for data analysis using generalized linear mixed models (GLMMs) with censored covariates. Special attention in given to the particular problem of inference about age-specific reproductive success in wild animal populations using some animals with known ages and some animals with ages only known to...
Resource Type:: Dissertation
Full Text:: versus male parent age from multiple-year observations on each of 108 Northern Spotted Owl

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

Creator:: Johnson, David Harold, 1956-
Resource Type:: Masters Thesis
Full Text:: Home Range Size Use of Edge Habitats Nest Sites Nesting Northern Spotted Owl Northwestern

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:: across the range of the northern spotted owl, including estimates from this current study

Creator:: Marks-Fife, Chad A.
Abstract:: Red tree voles (Arborimus longicaudus) are a unique species of Arvicoline rodent found in western Oregon and northwest California. Their preferred habitat is mature and old-growth coniferous forest dominated by Douglas-fir (Pseudotsuga menziesii). Tree voles are an important prey item for northern spotted owls and many other predators, but are...
Resource Type:: Masters Thesis
Full Text:: .............................................................................40 2.7. Estimated age distribution of 1,717 red tree voles identified in northern spotted owl

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