Wiesław Walankiewicz, Dorota Czeszczewik, Tomasz Tumiel, Tomasz Stański
Ornis Polonica 2011, 52: 161–168
https://doi.org/10.12657/ornis.2011.3.0
Abstract: In 2007–2009 we counted all woodpeckers along seven transects (4.6–8.0 km long) in deciduous stands of the Białowieża Forest, NE Poland. Three transects ran along stands of the strictly protected part of the Białowieża National Park (BNP) and four in managed stands of the forest. The total number of recorded woodpeckers per 1 km of transect (hereafter treated as an index of abundance) was on average 9.0 (SE=0.4) in BNP and 5.4 (SE=0.4) in managed stands. The most common species was Great Spotted Woodpecker Dendrocopos major, while the least numerous were Wryneck Jynx torquilla, Grey-headed Woodpecker Picus canus in all transects, and Three-toed Woodpecker Picoides tridactylus in managed stands. In comparison with 1999–2001, indices of abundance of all woodpeckers increased in 2007–2009 by 1.4/km in BNP and by 0.8/km in managed stands due to increasing index of D. major. We found that woodpeckers’ situation in managed stands is getting worse compared to BNP. This study confirms the importance of ecological reference of the Białowieża National Park, especially for White-backed Woodpecker D. leucotos and Three-toed Woodpecker.
