Conservation Evidence strives to be as useful to conservationists as possible. Please take our survey to help the team improve our resource.

Providing evidence to improve practice

Individual study: Effect of forest management for ruffed grouse Bonasa umbellus on other breeding birds at Barrens Grouse Habitat Management Area, Pennsylvania, USA

Published source details

Yahner R.H. (2008) Bird responses to a managed forested landscape. Wilson Journal of Ornithology, 120, 897-900

This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Clear or open patches in forests Bird Conservation

A study from mixed woods in Pennsylvania, USA (Yahner 2008), at the same site as Yahner (2003), compared the results from Yahner (2003) with bird surveys in 2005-7. Species composition and abundance differed but early successional species did not decline (despite forest maturation). Overall habitat management for ruffed grouse did not affect other bird populations since the last cutting cycle. During 2005-2007, 46 species were recorded. Of the 17 species recorded 10 or more times, six were observed only in managed area plots (grey catbird Dumetella carolinensis, chestnut-sided warbler Dendroica pensylvanica, common yellowthroat Geothlypis trichas, indigo bunting, field sparrow Spizella pusilla and chipping sparrow S. passerina). No species were observed only within unmanaged plots.