作者
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 Jenkins, William L Kendall, David W Lamphear, Christopher McCafferty, Trent L McDonald, Janice A Reid, Jeremy T Rockweit, David C Simon, Stan G Sovern, James K Swingle, Heather Wise
发表日期
2021/7/1
来源
Biological Conservation
卷号
259
页码范围
109168
出版商
Elsevier
简介
The northern spotted owl (Strix occidentalis caurina) inhabits older coniferous forests in the Pacific Northwest and has been at the center of forest management issues in this region. The immediate threats to this federally listed species include habitat loss and competition with barred owls (Strix varia), which invaded from eastern North America. We 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. We found that northern spotted owl populations experienced significant declines of 6–9% annually on 6 study areas and 2–5% annually on 5 other study areas. Annual declines translated to ≤35% of the populations remaining …
学术搜索中的文章
AB Franklin, KM Dugger, DB Lesmeister, RJ Davis… - Biological Conservation, 2021