thumbnail

Use of artificially created douglas-fir snags by cavity-nesting birds

Western Journal of Applied Forestry

By:
, , , , and

Links

  • The Publications Warehouse does not have links to digital versions of this publication at this time
  • Download citation as: RIS

Abstract

In western Oregon, we created snags by sawing tops off live Douglas-fir (Pseudotsuga menziesii) (n = 821) trees and monitored their condition and use by cavity-nesting birds. We created snags in three silvicultural treatments: modified clearcut stands, two-story stands, and small-patch group-selection stands. We used two snag patterns: clumped and scattered. Created snags averaged 3.8/ha in density, 17 m in height, and 75 cm in diameter. Chainsaw-topped snags were used by cavity nesters within 5 yr of creation. Abundance of excavated cavities increased in all silvicultural treatments (P = 0.0001) and was higher in two-story and clearcut stands than in small-patch stands (P a?? 0.0004). We did not, however, find that snag pattern (clumped v. scattered) affected use by cavity-nesting birds based on abundance of excavated cavities (P > 0.6). We observed excavated cavities in five hardwood species indicating that hardwoods represented an important resource for cavity-nesting birds. Creating conifer snags by topping and retaining hardwoods may retain or increase populations of cavity nesters in areas with low natural snag density.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Use of artificially created douglas-fir snags by cavity-nesting birds
Series title:
Western Journal of Applied Forestry
Volume
12
Issue:
3
Year Published:
1997
Language:
English
Contributing office(s):
Forest and Rangeland Ecosystem Science Center
Description:
p. 93-97
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Western Journal of Applied Forestry
First page:
93
Last page:
97
Number of Pages:
5