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Creator:: Glenn, Elizabeth M., Anthony, Robert G., and Forsman, Eric D.
Abstract:: We used reverse time capture-mark-recapture models to describe associations between rate of population change (λ) and climate for northern spotted owls (Strix occidentalis caurina) at six long-term study areas in Washington and Oregon, USA. Populations in three of six areas showed strong evidence of declining populations, while populations in two...
Full Text:: State University, Corvallis, OR 97331, USA 4 , Robert G. Anthony2, and Eric D. Forsman3 3 2 U.S

Creator:: Glenn, Elizabeth M., Anthony, Robert G., and Forsman, Eric D.
Abstract:: We used reverse time capture-mark-recapture models to describe associations between rate of population change (λ) and climate for northern spotted owls (Strix occidentalis caurina) at six long-term study areas in Washington and Oregon, USA. Populations in three of six areas showed strong evidence of declining populations, while populations in two...
Full Text:: precipitation (B), number of days with storms (C), total winter snowfall (D), number of days with temperatures

Creator:: Wiens, J. David, Anthony, Robert G., and Forsman, Eric D.
Abstract:: The federally threatened northern spotted owl (Strix occidentalis caurina) is the focus of intensive conservation efforts that have led to much forested land being reserved as habitat for the owl and associated wildlife species throughout the Pacific Northwest of the United States. Recently, however, a relatively new threat to spotted...
Resource Type:: Article
Full Text:: partitioning between northern spotted owls and barred owls in western Oregon Wiens, J. D., Anthony, R. G. and

Creator:: Glenn, Elizabeth M., Anthony, Robert G., and Forsman, Eric D.
Abstract:: We used reverse time capture-mark-recapture models to describe associations between rate of population change (λ) and climate for northern spotted owls (Strix occidentalis caurina) at six long-term study areas in Washington and Oregon, USA. Populations in three of six areas showed strong evidence of declining populations, while populations in two...
Resource Type:: Article

Creator:: Sovern, Stan G., Forsman, Eric D., Olson, Gail S., Biswell, Brian L., Taylor, Margaret, and Anthony, Robert G.
Abstract:: We used multi-season occupancy analyses to model 2 fates of northern spotted owl territories in relation to habitat amount, habitat fragmentation, and the presence of barred owls in Washington State, USA, 1989–2005. Local colonization is the probability a territory unoccupied by a spotted owl in year i would be occupied...

Creator:: Sovern, Stan G., Forsman, Eric D., Olson, Gail S., Biswell, Brian L., Taylor, Margaret, and Anthony, Robert G.
Abstract:: We used multi-season occupancy analyses to model 2 fates of northern spotted owl territories in relation to habitat amount, habitat fragmentation, and the presence of barred owls in Washington State, USA, 1989–2005. Local colonization is the probability a territory unoccupied by a spotted owl in year i would be occupied...
Full Text:: Occupancy of Northern Spotted Owls Sovern, S. G., Forsman, E. D., Olson, G. S., Biswell, B. L., Taylor, M

Creator:: Sovern, Stan G., Forsman, Eric D., Olson, Gail S., Biswell, Brian L., Taylor, Margaret, and Anthony, Robert G.
Abstract:: We used multi-season occupancy analyses to model 2 fates of northern spotted owl territories in relation to habitat amount, habitat fragmentation, and the presence of barred owls in Washington State, USA, 1989–2005. Local colonization is the probability a territory unoccupied by a spotted owl in year i would be occupied...
Resource Type:: Article

Creator:: Forsman, Eric D., Sovern, Stan G., Taylor, Margaret, and Biswell, Brian L.
Abstract:: We used radiotelemetry to study space use and habitat selection of 16 Northern Spotted Owls (Strix occidentalis caurina) on the eastern slope of the Cascade Mountains, Washington, U.S.A., in 1989–1990. We used a geographical information system (GIS) and aerial photo interpretation of digital orthophotos to assign owl locations a value...
Resource Type:: Article
Full Text:: Northern Spotted Owls on the Eastern Slope of the Cascade Mountains, Washington Forsman, E. D., Sovern, S

Creator:: Sovern, Stan G., Forsman, Eric D., Dugger, Katie M., and Taylor, Margaret
Abstract:: We studied habitat selection by northern spotted owls (Strix occidentalis caurina) during natal dispersal in Washington State, USA, at both the roost site and landscape scales. We used logistic regression to obtain parameters for an exponential resource selection function based on vegetation attributes in roost and random plots in 76...
Resource Type:: Article
Full Text:: Natal Dispersal Sovern, S. G., Forsman, E. D., Dugger, K. M., & Taylor, M. (2015). Roosting habitat

Creator:: Rockweit, Jeremy T., Jenkins, Julianna M. A., Hines, James E., Nichols, James D., Dugger, Katie M., Franklin, Alan B., Carlson, Peter C., Kendall, William L., Lesmeister, Damon B., McCafferty, Christopher, Ackers, Steven H., Andrews, L. Steven, Bailey, Larissa L., Burgher, Jesse, Burnham, Kenneth P., Chestnut, Tara, Conner, Mary M., Dilione, Krista E., Davis, Raymond J., Forsman, Eric D., Glenn, Elizabeth M., Gremel, Scott A., Hamm, Keith A., Herter, Dale R., Higley, J. Mark, Horn, Rob B., Lamphear, David W., McDonald, Trent L., Reid, Janice A., Schwarz, Carl J., Simon, David C., Sovern, Stan G., Swingle, James K., Wiens, J. David, Wise, Heather, and Yackulic, Charles B.
Abstract:: These datasets were used in the prospective meta-analysis of northern spotted owl reproductive rates over 25 years across 11 study areas located throughout the range of the owl. A multi-state occupancy file was created by collapsing site-specific information on owl reproductive status into bimonthly (2 per month) survey occasions. These...
Resource Type:: Dataset

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