Mechanisms determining the spatial distribution of microtine predators on the Arctic tundra
1. We studied the spatial distribution of avian microtine predators using data from 19 study areas on the tundra of northern Siberia. 2. Numbers of snowy owls, and long‐tailed skuas and pomarine skuas depended strongly on lemming density. However, a significant relationship between lemming density a...
Published in: | Journal of Animal Ecology |
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Language: | English |
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Online Access: | http://dx.doi.org/10.1046/j.1365-2656.1998.00177.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2656.1998.00177.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2656.1998.00177.x https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2656.1998.00177.x |
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crwiley:10.1046/j.1365-2656.1998.00177.x 2024-06-02T08:02:23+00:00 Mechanisms determining the spatial distribution of microtine predators on the Arctic tundra Wiklund, Christer G. Kjellén, Nils Isakson, Erik 1998 http://dx.doi.org/10.1046/j.1365-2656.1998.00177.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2656.1998.00177.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2656.1998.00177.x https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2656.1998.00177.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Animal Ecology volume 67, issue 1, page 91-98 ISSN 0021-8790 1365-2656 journal-article 1998 crwiley https://doi.org/10.1046/j.1365-2656.1998.00177.x 2024-05-03T10:41:22Z 1. We studied the spatial distribution of avian microtine predators using data from 19 study areas on the tundra of northern Siberia. 2. Numbers of snowy owls, and long‐tailed skuas and pomarine skuas depended strongly on lemming density. However, a significant relationship between lemming density and number of rough‐legged buzzards appeared first after removal of the effect of snowy owl abundance on the distribution of rough‐legged buzzards. 3. We applied a recently developed method (Manly 1995) to examine co‐occurrences of species and found that rough‐legged buzzards and snowy owls did not co‐occur while snowy owls, long‐tailed skuas and pomarine skuas did. 4. There are large differences in nest construction and chick behaviour between rough‐legged buzzards and the three other species. Moreover, the snow owl is a polyphagous predator preying also on large birds including raptor chicks. Therefore, we propose that reduced risk of nest predation favours rough‐legged buzzards nesting away from snowy owls. 5. Variations in abundance of the two lemming species did not seem to influence the distributions of snowy owls and rough‐legged buzzards. Neither was it likely that latitudinally related factors such as breeding season length affected the distribution of rough‐legged buzzards. Article in Journal/Newspaper Arctic snowy owl Tundra Siberia Wiley Online Library Arctic Journal of Animal Ecology 67 1 91 98 |
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Wiley Online Library |
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English |
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1. We studied the spatial distribution of avian microtine predators using data from 19 study areas on the tundra of northern Siberia. 2. Numbers of snowy owls, and long‐tailed skuas and pomarine skuas depended strongly on lemming density. However, a significant relationship between lemming density and number of rough‐legged buzzards appeared first after removal of the effect of snowy owl abundance on the distribution of rough‐legged buzzards. 3. We applied a recently developed method (Manly 1995) to examine co‐occurrences of species and found that rough‐legged buzzards and snowy owls did not co‐occur while snowy owls, long‐tailed skuas and pomarine skuas did. 4. There are large differences in nest construction and chick behaviour between rough‐legged buzzards and the three other species. Moreover, the snow owl is a polyphagous predator preying also on large birds including raptor chicks. Therefore, we propose that reduced risk of nest predation favours rough‐legged buzzards nesting away from snowy owls. 5. Variations in abundance of the two lemming species did not seem to influence the distributions of snowy owls and rough‐legged buzzards. Neither was it likely that latitudinally related factors such as breeding season length affected the distribution of rough‐legged buzzards. |
format |
Article in Journal/Newspaper |
author |
Wiklund, Christer G. Kjellén, Nils Isakson, Erik |
spellingShingle |
Wiklund, Christer G. Kjellén, Nils Isakson, Erik Mechanisms determining the spatial distribution of microtine predators on the Arctic tundra |
author_facet |
Wiklund, Christer G. Kjellén, Nils Isakson, Erik |
author_sort |
Wiklund, Christer G. |
title |
Mechanisms determining the spatial distribution of microtine predators on the Arctic tundra |
title_short |
Mechanisms determining the spatial distribution of microtine predators on the Arctic tundra |
title_full |
Mechanisms determining the spatial distribution of microtine predators on the Arctic tundra |
title_fullStr |
Mechanisms determining the spatial distribution of microtine predators on the Arctic tundra |
title_full_unstemmed |
Mechanisms determining the spatial distribution of microtine predators on the Arctic tundra |
title_sort |
mechanisms determining the spatial distribution of microtine predators on the arctic tundra |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.1046/j.1365-2656.1998.00177.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2656.1998.00177.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2656.1998.00177.x https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2656.1998.00177.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic snowy owl Tundra Siberia |
genre_facet |
Arctic snowy owl Tundra Siberia |
op_source |
Journal of Animal Ecology volume 67, issue 1, page 91-98 ISSN 0021-8790 1365-2656 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2656.1998.00177.x |
container_title |
Journal of Animal Ecology |
container_volume |
67 |
container_issue |
1 |
container_start_page |
91 |
op_container_end_page |
98 |
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1800746885823070208 |