Field guide for the identification of snags and logs in the interior Columbia River basin.

Catherine Parks; Evelyn Bull; Torolf R. Torgersen

doi:10.2737/PNW-GTR-390

Treesearch

Field guide for the identification of snags and logs in the interior Columbia River basin.

Informally Refereed

Authors:

Catherine Parks, Evelyn Bull, Torolf R. Torgersen

Year:

1997

Type:

General Technical Report

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-GTR-390

Source:

Gen. Tech. Rep. PNW-GTR-390. Portland, OR: US. Department of Agriculture, Forest Service. Pacific Northwest Research Station. 40 p

Download (PDF 2.36 MB)

Download (PDF 2.36 MB): https://research.fs.usda.gov/download/treesearch/5303.pdf

Abstract

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

Citation

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