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Improving strategies to assess competitive effects of barred owls on northern spotted owls in the Pacific Northwest

Fact Sheet 2011-3096

Research conducted in cooperation with U.S. Fish and Wildlife Service, National Park Service, U.S. Forest Service, Bureau of Land Management, Oregon Department of Forestry, Oregon State University, and Boise State University
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Abstract

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).

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Improving strategies to assess competitive effects of barred owls on northern spotted owls in the Pacific Northwest
Series title:
Fact Sheet
Series number:
2011-3096
Year Published:
2011
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Forest and Rangeland Ecosystem Science Center
Description:
2 p.