Invertebrate abundance in different forest habitats as animal food available to capercaillieTetrao urogalluschicks
作者:
OddH. Stuen,
TorK. Spidsø,
期刊:
Scandinavian Journal of Forest Research
(Taylor Available online 1988)
卷期:
Volume 3,
issue 1-4
页码: 527-532
ISSN:0282-7581
年代: 1988
DOI:10.1080/02827588809382537
出版商: Taylor & Francis Group
关键词: invertebrate abundance;habitat quality;clear‐cutting;capercaillie;chicks’ diet;Tetrao urogallus
数据来源: Taylor
摘要:
Invertebrate abundance was estimated in 1981 and 1982 by sweep‐netting at twelve forest vegetation types in Vegårshei, Southern Norway. Invertebrates are expected to be a major determinant of habitat quality to gallinaceous birds, since animal food is considered essential to young chicks. The twelve fixed stations were chosen to illustrate poor and rich habitats and a gradient from bog to forest habitat. Rich vegetation types also had the highest abundance of invertebrates mainly due to moist and heavy soils. A comparison between a clear‐cutting and a similar vegetation type not logged, showed strong reduction in invertebrate availability after cutting. The influence of this alteration on availability of the capercaillieTetrao urogalluschicks’ food is discussed.
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