Spatial patterns of bat diversity overlap with woodpecker abundance.

摘要: Woodpecker diversity is usually higher in natural forests rich dead wood and old trees than managed ones, thus this group of birds regarded as an indicator forest biodiversity. Woodpeckers excavate cavities which can be subsequently used by several bird species. As a consequence, their abundance indicates high avian forests. However, woodpecker-made holes may also important for other animals, example, mammals but it has seldom been investigated so far. Here, we examine how well one species, the Great Spotted Woodpecker, predicts species richness, occurrence acoustic activity bats Polish pine In 2011 conducted woodpecker bat surveys at 63 point-count sites that varied terms stand age, structure amount wood. From zero to five site were recorded. The total duration echolocation calls during 10-min visit from 0 542 s number species/species groups recorded ranged between five. local was positively correlated with richness (on verge significance), pooled activity. Eptesicus Vespertilio Nyctalus related Woodpecker. Pipistrellus pygmaeus, Myotis not associated abundance, P. nathusii P.pipistrellus more often many Woodpeckers. Moreover, probability presence generally shortly after dusk middle summer late spring. We suggest observed correlations driven similar roosting habitats (e.g., woodpeckers provide breeding bats) or possibly invertebrate food resources bats. seems good positive activity, adding relatively cryptic are indicated