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Emphasis on conifer forests places multiple species at risk
Date:8/23/2007

m the diet for many birds and some mammals. And in the conifer forests of western Oregon, hardwood trees support the abundance of 69 percent of the butterflies and moths.

In similar fashion, 90 percent of the diet of the northern spotted owl is composed of small mammals that are associated with non-coniferous vegetation.

Aside from supporting wildlife species, non-coniferous vegetation also makes important contributions to nutrient cycling, carbon sequestration, soil fertility, and aquatic food webs, the report said.

The report suggested that management options that include slower rates of conifer re-establishment, less-dense conifer plantations, more thinning of over-stocked forests, and less control of shrubs or other vegetation would all contribute to a wider diversity of vegetation and the wildlife species that depend on it, Hagar said. And the report noted it may take a while a decade or more for shrubs, herbs and broad-leaf trees to recover.


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Contact: Joan Hagar
joan_hagar@usgs.gov
541-758-8815
Oregon State University
Source:Eurekalert

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