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Title: Field guide for the identification of snags and logs in the interior Columbia River basin.
Author: Parks, Catherine G.; Bull, Evelyn L.; Torgersen, Torolf R.
Source: Gen. Tech. Rep. PNW-GTR-390. Portland, OR: US. Department of Agriculture, Forest Service. Pacific Northwest Research Station. 40 p
Description: This field guide contains descriptions and color photographs of snags and logs of 10 coniferous and 3 deciduous tree species found in the interior Columbia River basin. Methods arc described to distinguish among the different species when various amounts of branches, cones, and bark arc missing. Wildlife use of the different species of snags and logs are listed. Snags and logs are each classified into three categories based on structural features. Six indicators of fungal decay are illustrated.
Keywords: Cavity nesters, decay fungi, habitat monitoring, hollow trees, interior Columbia River basin, logs, snags, wildlife, wood decay
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Parks, Catherine G.; Bull, Evelyn L.; Torgersen, Torolf R. 1997. Field guide for the identification of snags and logs in the interior Columbia River basin. Gen. Tech. Rep. PNW-GTR-390. Portland, OR: US. Department of Agriculture, Forest Service. Pacific Northwest Research Station. 40 p
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