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Status and Trends of Northern Spotted Owl Populations and Habitat: Northwest Forest Plan -- The First 10 Years (1994-2003)
Presents results from monitoring spotted owl (Stri

 
Our Price: $45.00
By Joseph Lint (ed)
Year: 2005
Pages: 176
Binding Paperback

Product Code: 142230809X

Description
 
Presents results from monitoring spotted owl (Strix occidentalis caurina) populations & habitat during the first 10 yrs. of implementation of the Northwest Forest Plan. Estimated population decline ranged from 0-10% annually. The avg. annual rate of decline for the 4 demographic areas in Wash. state was 7%. Presence of barred owls (Strix varia), weather, past & present harvest of habitat, & wildfire & insect infestations that alter habitat are all possible contributors to the decline. Maps depicting the suitability of habitat-capable area were produced by using habitat models. Predictive model development using demographic data showed a variety of factors that influence owl survival & productivity incl. precipín., owl age, & habitat. Illus.

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