Habitat use of small mustelids in north Fennoscandian tundra: a test of the hypothesis of patchy exploitation ecosystems
The habitat use of small mustelids in a tundra area in Norwegian Lapland was studied chiefly by means of snow‐tracking 1986‐89 Stoats showed strong peference to a habitat complex immediately beneath the thrust line of the Scandes, with exceptional abundance of luxuriant habitats, whereas weasel acti...
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Language: | English |
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1992
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Online Access: | http://dx.doi.org/10.1111/j.1600-0587.1992.tb00030.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1992.tb00030.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1992.tb00030.x |
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crwiley:10.1111/j.1600-0587.1992.tb00030.x 2024-09-15T18:06:07+00:00 Habitat use of small mustelids in north Fennoscandian tundra: a test of the hypothesis of patchy exploitation ecosystems Oksanen, Tarja Oksanen, Lauri Norberg, Mats 1992 http://dx.doi.org/10.1111/j.1600-0587.1992.tb00030.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1992.tb00030.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1992.tb00030.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecography volume 15, issue 2, page 237-244 ISSN 0906-7590 1600-0587 journal-article 1992 crwiley https://doi.org/10.1111/j.1600-0587.1992.tb00030.x 2024-07-30T04:21:59Z The habitat use of small mustelids in a tundra area in Norwegian Lapland was studied chiefly by means of snow‐tracking 1986‐89 Stoats showed strong peference to a habitat complex immediately beneath the thrust line of the Scandes, with exceptional abundance of luxuriant habitats, whereas weasel activity was more evenly spread over the lowland tundra Mustelid activity on the high tundra above the thrust line was consistently low Within each subarea. stoat activity was concentrated to the most luxuriant habitats Similar preferences were shown by weasels on the lowland but not in the vicinity of the thurst cliff Daily movements of both species varied from local (c 200 m) to extensive (up to 4 km), no consistent interspecific differences in travel distances could be observed The results largely conform to the hypothesis of patchy exploitation ecosystems (T Oksanen 1990a), according to which predator activity tends to “spill over’ from luxuriant habitats, capable of supporting predator populations, to adjacent barren ones, due to despotic behavior within and between species and due to opportunistic predation by transient predators However, predator activity in barren habitats during the crash winter could not be explained by these mechanisms alone A third mechanism ‐ breakdown of habitat preferences of predators during crash phases of a cyclic prey population ‐ was thus introduced Article in Journal/Newspaper Fennoscandian Tundra Lapland Wiley Online Library Ecography 15 2 237 244 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
The habitat use of small mustelids in a tundra area in Norwegian Lapland was studied chiefly by means of snow‐tracking 1986‐89 Stoats showed strong peference to a habitat complex immediately beneath the thrust line of the Scandes, with exceptional abundance of luxuriant habitats, whereas weasel activity was more evenly spread over the lowland tundra Mustelid activity on the high tundra above the thrust line was consistently low Within each subarea. stoat activity was concentrated to the most luxuriant habitats Similar preferences were shown by weasels on the lowland but not in the vicinity of the thurst cliff Daily movements of both species varied from local (c 200 m) to extensive (up to 4 km), no consistent interspecific differences in travel distances could be observed The results largely conform to the hypothesis of patchy exploitation ecosystems (T Oksanen 1990a), according to which predator activity tends to “spill over’ from luxuriant habitats, capable of supporting predator populations, to adjacent barren ones, due to despotic behavior within and between species and due to opportunistic predation by transient predators However, predator activity in barren habitats during the crash winter could not be explained by these mechanisms alone A third mechanism ‐ breakdown of habitat preferences of predators during crash phases of a cyclic prey population ‐ was thus introduced |
format |
Article in Journal/Newspaper |
author |
Oksanen, Tarja Oksanen, Lauri Norberg, Mats |
spellingShingle |
Oksanen, Tarja Oksanen, Lauri Norberg, Mats Habitat use of small mustelids in north Fennoscandian tundra: a test of the hypothesis of patchy exploitation ecosystems |
author_facet |
Oksanen, Tarja Oksanen, Lauri Norberg, Mats |
author_sort |
Oksanen, Tarja |
title |
Habitat use of small mustelids in north Fennoscandian tundra: a test of the hypothesis of patchy exploitation ecosystems |
title_short |
Habitat use of small mustelids in north Fennoscandian tundra: a test of the hypothesis of patchy exploitation ecosystems |
title_full |
Habitat use of small mustelids in north Fennoscandian tundra: a test of the hypothesis of patchy exploitation ecosystems |
title_fullStr |
Habitat use of small mustelids in north Fennoscandian tundra: a test of the hypothesis of patchy exploitation ecosystems |
title_full_unstemmed |
Habitat use of small mustelids in north Fennoscandian tundra: a test of the hypothesis of patchy exploitation ecosystems |
title_sort |
habitat use of small mustelids in north fennoscandian tundra: a test of the hypothesis of patchy exploitation ecosystems |
publisher |
Wiley |
publishDate |
1992 |
url |
http://dx.doi.org/10.1111/j.1600-0587.1992.tb00030.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1992.tb00030.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1992.tb00030.x |
genre |
Fennoscandian Tundra Lapland |
genre_facet |
Fennoscandian Tundra Lapland |
op_source |
Ecography volume 15, issue 2, page 237-244 ISSN 0906-7590 1600-0587 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0587.1992.tb00030.x |
container_title |
Ecography |
container_volume |
15 |
container_issue |
2 |
container_start_page |
237 |
op_container_end_page |
244 |
_version_ |
1810443612878536704 |