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Barred Owls and Northern Spotted Owls in the Eastern Cascade Range, Washington
Competitive interactions with barred owls (Strix varia) are an important factor contributing to the observed decline in the northern spotted owl (Strix occidentallis caurina) population in Washington. My goal was to develop an understanding of barred owl habitat associations at spatial scales corresponding to home ranges and ...
Factors affecting the quantity and quality of Argos telemetry locations for wolverines in the northern Cascade Range in Washington
Satellite telemetry systems provide wildlife researchers with a valuable tool for tracking species that range over large distances or inhabit remote or inaccessible terrain, such as wolverines (<italic>Gulo gulo<italic>) in the northern Cascade Range in Washington. The Argos system is 1 of 2 satellite telemetry systems that ...
Using non-invasive techniques to examine black bear (Ursus americanus) abundance in the North Cascades Ecosystem, Washington State
Recent advances in non-invasive research methods have facilitated less costly evaluations of bear populations across wide geographic ranges. Non-invasive hair-snagging and genetic tagging allow identification of species, sex, and individual bears without necessitating direct capture or observation. From 2008 to 2011 a large, ...