Black grouse Lyrurus tetrix and capercaillie Tetrao urogallus brood habitats in a Norwegian spruce forest
Black grouse Lyrurus tetrix and capercaillie Tetrao urogallus brood habitats in a Norwegian spruce forest
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作者：
A. Krafft
挪威东南部中部阿克尔舒斯县的森林。研究表明，在森林演替的早期阶段，黑松鸡表现出更大的偏好比雷鸟。在这一地区，黑松鸡繁殖栖息地的特点是发育良好的灌木层。一个高比例的capercaillie育雏，然而，被发现在成熟的森林与稀疏发达的灌木层。黑松鸡育雏似乎更喜欢的植物群落的鳞毛蕨subassociation，而capercaillie育雏有一个更均匀的分布在该地区的植物协会和subassociations。
forest in Akershus Country in the central part of southeastern Norway. The study revealed that the black grouse showed a greater preference for the earlier stages in the forest succession than did the capercaillie. In this area, the black grouse breeding habitat was characterized by a well-developed bush stratum. A high percentage of the capercaillie broods, however, was found in mature forest with a sparsely developed bush stratum. The black grouse broods seemed to prefer a plant community of the Dryopteris subassociation, while capercaillie broods had a more even distribution over the plant associations and subassociations in the area.