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Focus Species Forestry - Maine Audubon

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Appendix 8. <strong>Focus</strong> <strong>Species</strong> Associated with Snags,<br />

Cavity Trees, or Downed Woody Material<br />

Region<br />

Ecosystem North South<br />

Aspen-Birch See footnote 1 See footnote 1<br />

Northern Hardwood American marten 2<br />

Barred owl<br />

Pileated woodpecker<br />

Black-backed woodpecker<br />

Fisher 2<br />

Barred owl<br />

Pileated woodpecker<br />

Oak-Pine<br />

Fisher<br />

Pileated woodpecker<br />

Barred owl<br />

Hemlock American marten Fisher<br />

Spruce-Fir<br />

American marten<br />

Black-backed woodpecker<br />

Pileated woodpecker<br />

Fisher<br />

Northern White Cedar<br />

Black-backed woodpecker<br />

1 Because aspen and birch are typically too small for pileated woodpeckers and barred owls, no focus<br />

species associated with snags, cavity trees, and downed woody material were assigned to this type.<br />

However, because aspen and birch are prone to internal decay, they are valuable but short-lasting<br />

cavity trees for the many species that utilize smaller trees.<br />

2<br />

Marten and fisher benefit from a variety of structures that provide cover for small mammals that are<br />

their prey, including downed logs, brush, stumps, root tip-up mounds, and other features.<br />

<strong>Focus</strong> <strong>Species</strong> <strong>Forestry</strong> 89

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