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Effects
of timber harvest practices on birds in Southern Oregon
Study Objectives:
The goal of this study is to assess the effect that Wildlife Protection
Areas have on resident and Neotropical migratory songbirds.
Project Description:
Southern Oregon Boise Corporation currently retains trees within timber
harvest units as clumps or islands, rather than scattered individually
throughout the unit. These islands of trees are referred to as Wildlife
Protection Areas (WPAs). Two years of surveys were completed to determine
the effects of WPA's. The results compare species richness, abundance
and nesting success within harvest units containing WPAs and mature forest
controls. With the results we intend to facilitate the development of
local management guidelines to promote timber harvest prescriptions that
provide sufficient habitat to sustain breeding populations of songbirds.
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Methods:
off road variable radius point
counts
nest searching
spot mapping
Partners:
Boise Corporation
Southern Oregon University
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Cassin's Vireo
Nestlings
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Contact: Jaime
Heinzelmann (541) 201-0866
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