Session Detail


Symposium
82.Conservation of the Northern Spotted Owl –Two Decades After Listing.
Wednesday, Oct 17, 2012, 1:30 PM - 5:20 PM
OCC-B115-116
Session Description

Conservation of the Northern Spotted Owl –Two Decades after Listing

Organizers: Betsy Glenn, US Fish and Wildlife Service, Portland, OR

John Lehmkuhl, USDA Forest Service, Pacific Northwest Research Station,Wenatchee, WA

The northern spotted owl (Strix occidentalis caurina) was listed as a threatened species by the US Fish and Wildlife Service (USFWS) in 1990. To meet requirements of the Endangered Species Act and National Forest Management Act, federal agencies adopted the Northwest Forest Plan in 1994 as a conservation strategy for the subspecies. Under this plan, conservation efforts for the spotted owl have focused on protection of late-successional forests on federal lands throughout its geographic range. More recently, a Final Revised Recovery Plan and Revised Proposed Critical Habitat Rule for the Northern Spotted Owl have been issued by the USFWS. Because of the contentious debate over how best to manage late-successional forests, the northern spotted owl has become one of the most studied bird species in the world. Despite the extensive research, the effectiveness of the Northwest Forest Plan strategy for conserving northern spotted owls remains unclear. Populations have shown continued declines since the early 1990s, and specific causes of declines have not been well-identified. Conservation efforts have been further complicated by the range expansion of the congeneric barred owl (Strix varia) into the range of the northern spotted owl, with negative effects on site occupancy by spotted owls. This symposium will present an overview current status of the subspecies, review developments in conservation policy, and consider future challenges for spotted owl conservation and management.

Presentations:
10/17/2012 1:30:00 PM
Organizer
Betsy Glenn, 1 Contact: betsy_glenn@fws.gov

10/17/2012 1:30:00 PM
Organizer
John Lehmkuhl, 1 Contact: jlehmkuhl@fs.fed.us

10/17/2012 1:30:00 PM
1. Population demography of the Northern spotted owl.
Eric D. Forsman1, Robert G. Anthony2, Katie M. Dugger2, Betsy M. Glenn3, 1US Forest Service, PNW Research Station, Corvallis, OR, 2Oregon State University, Corvallis, OR, 3US Fish and Wildlife Service, Portland, OR, Contact: eforsman@fs.fed.us

10/17/2012 2:10:00 PM
2. Competitive interactions and resource partitioning between northern spotted owls and barred owls in western Oregon
J. David Wiens1, Robert G. Anthony2, Eric D. Forsman3, 1U.S. Geological Survey Forest and Rangeland Ecosystem Science Center, Corvallis, OR, 2Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR, 3USDA Forest Service Pacific Northwest Research Station, Corvallis, OR, Contact: jwiens@usgs.gov

10/17/2012 2:50:00 PM
3. Integrating Distributional, Spatial Prioritization, and Individual-Based Models to Evaluate Potential Critical Habitat Networks: A Case Study Using the Northern Spotted Owl.
Jeffrey Dunk1, Brian Woodbridge2, Nathan H. Schumaker3, Elizabeth M. Glenn4, David W. LaPlante5, Brendan White4, 1Humboldt State University, Arcata, CA, 2United States Fish and Wildlife Service, Yreka, CA, 3United States Environmental Protection Agency, Corvallis, OR, 4United States Fish and Wildlife Service, Portland, OR, 5Natural Resources Geospatial, Yreka, CA, Contact: Jeffrey.Dunk@humboldt.edu

10/17/2012 3:10:00 PM
4. Break
P. Placeholder;
National Wildlife Research Center, Fort Collins, CO.

10/17/2012 3:40:00 PM
5. Integrating Distributional, Spatial Prioritization, and Individual-Based Models to Evaluate Potential Critical Habitat Networks: A Case Study Using the Northern Spotted Owl. Part II
Brian Woodbridge, 1 Contact: brian_woodbridge@fws.gov

10/17/2012 4:00:00 PM
6. An overview of alternatives for dry forest restoration and Northern Spotted Owl conservation in the eastern Cascade Range and their analysis by the Veg-Fire-Owl Project
John Lehmkuhl, 1 Contact: jlehmkuhl@fs.fed.us

10/17/2012 4:20:00 PM
7. Strategies for integrating dry forest restoration and conservation of the Northern Spotted Owl in the eastern Cascade Range.
Thomas A. Spies1, Paul Hessburg2, John Lehmkuhl2, 1USFS, PNW Research Station, Corvallis, OR, 2USFS, PNW Research Station, Wenatchee, WA, Contact: tspies@fs.fed.us

10/17/2012 4:40:00 PM
8. 'Projected dry forest landscape dynamics and the implications for Northern Spotted Owl habitat under alternative management scenarios.
Robert Scheller1, Erik Haunreiter2, Rebecca Kennedy3, Peter Singleton4, 1Portland State University, Portland, OR, 2Oregon State University, Corvallis, OR, 3USFS PNW Research Station, Corvallis, OR, 4USFS PNW Research Station, Portland, OR, Contact: rmschell@pdx.edu

10/17/2012 5:00:00 PM
9. Distribution and abundance of Northern Spotted Owls under alternative dry forest management scenarios
Peter Singleton1, Bruce Marcot2, Martin Raphael3, John Lehmkuhl1, Nathan Schumaker4, 1US Forest Service, Pacific Northwest Research Station, Wenatchee, WA, 2US Forest Service, Pacific Northwest Research Station, Portland, OR, 3US Forest Service, Pacific Northwest Research Station, Olympia, WA, 4US Environmental Protection Agency, Corvallis, OR, Contact: psingleton@fs.fed.us

 

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