Study

Breeding bird responses to three silvicultural treatments in the Oregon Coast Range

  • Published source details Chambers C.L., McComb W.C. & Tappeiner II J.C. (1999) Breeding bird responses to three silvicultural treatments in the Oregon Coast Range. Ecological Applications, 9, 171-185.

Actions

This study is summarised as evidence for the following.

Action Category

Use patch retention harvesting instead of clearcutting

Action Link
Bird Conservation
  1. Use patch retention harvesting instead of clearcutting

    In McDonald-Dunn Forest, Oregon, USA, a replicated, controlled study (Chambers et al. 1999) found that patch-group-harvested stands (33% of tree volume removed in 0.2 ha patches) retained an old forest-associated bird composition more similar to that of control (unharvested, old-growth Douglas-fir Pseudotsuga menziesii) stands, compared to two-story (66% of wood removed) and modified clearcut (1.2 trees retained/ha) stands. Of ten abundant forest species in patch group stands, five restricted-range species declined in modified clear-cut and two-story harvested stands, whilst nine mostly habitat generalists species increased in these two treatments. Seven to 11 stands of each treatment were studied, with birds surveyed in the breeding season prior to, and in the two years after, timber harvest (1989-1993).

     

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