Seasonal differences in habitat selection by Black GrouseTetrao tetrixin the northern Pennines, England
作者:
DAVID BAINES,
期刊:
Ibis
(WILEY Available online 1994)
卷期:
Volume 136,
issue 1
页码: 39-43
ISSN:0019-1019
年代: 1994
DOI:10.1111/j.1474-919X.1994.tb08129.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
Between‐season differences in habitat use by Black GrouseTetrao tetrixwere studied on four moors in the northern Pennines between 1989 and 1992. Heather moor and bogs were preferred at all times of the year, apart from during the breeding season. In spring, large quantities of Cotton‐grassEriophorum vaginatumflowers were consumed, whereas in autumn and winter HeatherCalluna vulgariswas more important. Enclosed fields on the edge of the moors were regularly used in autumn and winter by large flocks of cock birds, and hens were found in smaller groups. Where present, overgrazed grass moorland was generally avoided, apart from during the summer. Similarly, enclosed rough grazing allotments rich in rushes were favoured during the summer months by breeding hens and moulting co
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