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

Carol L Chambers, Tara Carrigan, Thomas E. Sabin, John Tappeiner, William C. McComb

Research output: Contribution to journalArticle

30 Citations (Scopus)

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 in 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 clearcu stands than in small-patch stands (P ≤ 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.

Original languageEnglish (US)
Pages (from-to)93-97
Number of pages5
JournalWestern Journal of Applied Forestry
Volume12
Issue number3
StatePublished - Jul 1997

Fingerprint

snag
snags
Pseudotsuga menziesii
cavity
bird
birds
hardwood
chainsaws
group selection
sawing
clearcutting
conifers
coniferous tree
population growth
resource

ASJC Scopus subject areas

  • Forestry
  • Plant Science

Cite this

Chambers, C. L., Carrigan, T., Sabin, T. E., Tappeiner, J., & McComb, W. C. (1997). Use of artificially created Douglas-fir snags by cavity-nesting birds. Western Journal of Applied Forestry, 12(3), 93-97.

Use of artificially created Douglas-fir snags by cavity-nesting birds. / Chambers, Carol L; Carrigan, Tara; Sabin, Thomas E.; Tappeiner, John; McComb, William C.

In: Western Journal of Applied Forestry, Vol. 12, No. 3, 07.1997, p. 93-97.

Research output: Contribution to journalArticle

Chambers, CL, Carrigan, T, Sabin, TE, Tappeiner, J & McComb, WC 1997, 'Use of artificially created Douglas-fir snags by cavity-nesting birds', Western Journal of Applied Forestry, vol. 12, no. 3, pp. 93-97.
Chambers, Carol L ; Carrigan, Tara ; Sabin, Thomas E. ; Tappeiner, John ; McComb, William C. / Use of artificially created Douglas-fir snags by cavity-nesting birds. In: Western Journal of Applied Forestry. 1997 ; Vol. 12, No. 3. pp. 93-97.
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