| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6301134 | Biological Conservation | 2012 | 9 Pages |
Abstract
⺠Non-excavated holes used by birds often in short supply in managed woods. ⺠They persisted for up to 30 years in strictly protected BiaÅowieża National Park. ⺠Holes persisted for a median 11-13 years in deciduous forests. ⺠Their lifespan varied by tree species; holes in large live trees persisted longest. ⺠The existing hole trees should be retained in the forestry operations.
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Authors
Tomasz WesoÅowski,