Use of forest stands managed for ruffed grouse Bonasa umbellus by overwintering and breeding bird species at Barrens Grouse Management Area, Pennsylvania, USA
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Published source details
Yahner R.H. (1987) Use of even-aged stands by winter and spring bird communities. The Wilson Bulletin, 99, 218-232
Published source details Yahner R.H. (1987) Use of even-aged stands by winter and spring bird communities. The Wilson Bulletin, 99, 218-232
Actions
This study is summarised as evidence for the following.
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Clear or open patches in forests Action Link |
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Clear or open patches in forests
A replicated study between December 1981 and June 1984 in a mosaic of aspen Populus spp. and oak Quercus spp. managed for ruffed grouse Bonasa umbellus at Barrens Grouse Management Area, Pennsylvania, USA (Yahner 1987), found that 13 species in winter and 69 species in spring were recorded. In winter, birds were significantly more abundant in the interior of mature aspen (>60 years old) stands than in young (1-3 years since clear-cutting) aspen stands and the edge of intermediate (4-8 years since clear-cutting) aspen stands. In spring, birds were significantly more abundant in intermediate aspen and oak stands (interior and edge) and the interior of mature aspen, than in the interior of mature oak stands and the edge of mature and young aspen stands.
