A scientific study has determined that survey methods designed for spotted owls do not always detect barred owls that are actually present in spotted owl habitat. The researchers suggest that strategies to address potential interactions between spotted owls and barred owls will require carefully designed surveys that account for response behaviors and imperfect detection of both species. Species-specific sampling methods, which are proposed, can be used by forest managers to determine the occurrence and distribution of barred owls with high confidence. This fact sheet provides highlights of the research (Wiens and others, 2011).
Citation Information
Publication Year | 2011 |
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Title | Improving strategies to assess competitive effects of barred owls on northern spotted owls in the Pacific Northwest |
DOI | 10.3133/fs20113096 |
Authors | J. David Wiens, Anne Weekes |
Publication Type | Report |
Publication Subtype | USGS Numbered Series |
Series Title | Fact Sheet |
Series Number | 2011-3096 |
Index ID | fs20113096 |
Record Source | USGS Publications Warehouse |
USGS Organization | Forest and Rangeland Ecosystem Science Center |