R
Rob B. Horn
Researcher at Bureau of Land Management
Publications - 8
Citations - 376
Rob B. Horn is an academic researcher from Bureau of Land Management. The author has contributed to research in topics: Northern spotted owl & Population. The author has an hindex of 5, co-authored 7 publications receiving 309 citations. Previous affiliations of Rob B. Horn include United States Department of the Interior.
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Journal ArticleDOI
The effects of habitat, climate, and Barred Owls on long-term demography of Northern Spotted Owls
Katie M. Dugger,Eric D. Forsman,Alan B. Franklin,Raymond J. Davis,Gary C. White,Carl J. Schwarz,Kenneth P. Burnham,James D. Nichols,James E. Hines,Charles B. Yackulic,Paul F. Doherty,Larissa L. Bailey,Darren A. Clark,Steven H. Ackers,Lawrence S. Andrews,Benjamin Augustine,Brian L. Biswell,Jennifer A. Blakesley,Peter C. Carlson,Matthew J. Clement,Lowell V. Diller,Elizabeth M. Glenn,Adam W. Green,Scott A. Gremel,Dale R. Herter,J. Mark Higley,Jeremy Hobson,Rob B. Horn,Kathryn P. Huyvaert,Christopher McCafferty,Trent L. McDonald,Kevin McDonnell,Gail S. Olson,Janice A. Reid,Jeremy T. Rockweit,Viviana Ruiz,Jessica Saenz,Stan G. Sovern +37 more
TL;DR: Strong support is found for a negative effect of Barred Owl presence on apparent survival of Spotted Owls in 10 of 11 study areas, but found few strong effects of habitat on survival at the study area scale; however, there was little consistency among areas regarding the relative importance of specific climate covariates.
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Status and trends in demography of northern spotted owls, 1985-2003
Robert G. Anthony,Eric D. Forsman,Alan B. Franklin,David E. Anderson,Kenneth P. Burnham,Gary C. White,Carl J. Schwarz,James D. Nichols,James E. Hines,Gail S. Olson,Steven H. Ackers,Lawrence S. Andrews,Brian L. Biswell,Peter C. Carlson,Lowell V. Diller,Katie M. Dugger,Katherine E. Fehring,Tracy L. Fleming,Richard P. Gerhardt,Scott A. Gremel,Ralph J. Gutierrez,Patti J. Happe,Dale R. Herter,J. Mark Higley,Rob B. Horn,Larry L. Irwin,Peter J. Loschl,Janice A. Reid,Stan G. Sovern +28 more
TL;DR: In this article, the authors analyzed demographic data from northern spotted owls (Strix occidentalis caurina) from 14 study areas in Washington, Oregon, and California for 1985-2003.
Journal ArticleDOI
Does the presence of barred owls suppress the calling behavior of spotted owls
Michelle L. Crozier,Mark E. Seamans,Ralph J. Gutierrez,Peter J. Loschl,Rob B. Horn,Stan G. Sovern,Eric D. Forsman +6 more
TL;DR: A test of behavioral dominance was conducted by assessing responsiveness of Spotted Owls to conspecific calls when they were in the simulated presence (i.e., imitation of Barred Owl vocalizations) of a Barred Owls.
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The past and future roles of competition and habitat in the range-wide occupancy dynamics of Northern Spotted Owls
Charles B. Yackulic,Larissa L. Bailey,Katie M. Dugger,Raymond J. Davis,Alan B. Franklin,Eric D. Forsman,Steven H. Ackers,Lawrence S. Andrews,Lowell V. Diller,Scott A. Gremel,Keith A. Hamm,Dale R. Herter,J. Mark Higley,Rob B. Horn,Christopher McCafferty,Janice A. Reid,Jeremy T. Rockweit,Stan G. Sovern +17 more
TL;DR: This study suggests how intensive management actions (removal of a competitor) with rapid results can complement a slower management action (i.e., promoting forest succession) in order to promote the persistence of northern spotted owl populations.
Journal ArticleDOI
Range-wide declines of northern spotted owl populations in the Pacific Northwest: A meta-analysis
Alan B. Franklin,Katie M. Dugger,Damon B. Lesmeister,Raymond J. Davis,J. David Wiens,Gary C. White,James D. Nichols,James E. Hines,Charles B. Yackulic,Carl J. Schwarz,Steven H. Ackers,L. Steven Andrews,Larissa L. Bailey,Robin Bown,Jesse Burgher,Kenneth P. Burnham,Peter C. Carlson,Tara Chestnut,Mary M. Conner,Krista E. Dilione,Eric D. Forsman,Elizabeth M. Glenn,Scott A. Gremel,Keith A. Hamm,Dale R. Herter,J. Mark Higley,Rob B. Horn,Julianna M. A. Jenkins,William L. Kendall,David W. Lamphear,Christopher McCafferty,Trent L. McDonald,Janice A. Reid,Jeremy T. Rockweit,David C. Simon,Stan G. Sovern,Stan G. Sovern,James K. Swingle,Heather Wise +38 more
TL;DR: The authors conducted a prospective meta-analysis to assess population trends and factors affecting those trends in northern spotted owls using 26 years of survey and capture-recapture data from 11 study areas across the owls' geographic range to analyze demographic traits, rates of population change and occupancy parameters for spotted owl territories.