Dietary and Reproductive Responses of Arctic Foxes to Changes in Small Rodent Abundance
Between 1988 and 1995, dens in three adjacent arctic fox (Alopex lagopus) territories were monitored in an alpine environment in south-central Norway (the Snøhetta plateau). A total of 675 scats were collected at dens in both winter and summer, and the numbers of resident adults and pups at emergenc...
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Language: | English |
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The Arctic Institute of North America
1999
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/63988 2023-05-15T13:19:47+02:00 Dietary and Reproductive Responses of Arctic Foxes to Changes in Small Rodent Abundance Strand, Olav Linnell, John D.C. Krogstad, Steinar Landa, Arild 1999-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63988 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63988/47923 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63988 ARCTIC; Vol. 52 No. 3 (1999): September: 237–324; 272-278 1923-1245 0004-0843 arctic fox Alopex lagopus diet reproduction renard arctique alimentation info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1999 ftunivcalgaryojs 2022-03-22T21:21:14Z Between 1988 and 1995, dens in three adjacent arctic fox (Alopex lagopus) territories were monitored in an alpine environment in south-central Norway (the Snøhetta plateau). A total of 675 scats were collected at dens in both winter and summer, and the numbers of resident adults and pups at emergence were counted each summer. Small rodents (mainly Lemmus sp. and Microtus sp.) were the most frequently consumed prey and made up the greatest volume within scats, in all seasons and at all stages of the rodent cycle. Small rodents were followed in frequency by reindeer (Rangifer tarandus), hares (Lepus timidus), birds, and vegetation. Birds and vegetation were more common in the summer diet than in the winter diet, reflecting their seasonal availability. The relative volume of reindeer and birds in the diet decreased with increasing rodent abundance. Increased pup production was associated with years of high rodent abundance and a high occurrence of rodents in the diet. Adult numbers were not associated with rodent abundance. Entre 1988 et 1995, on a observé les terriers du renard arctique (Alopex lagopus), dans trois territoires contigus situés dans un environnement alpin du centre-sud de la Norvège (le plateau Snøhetta). En hiver et en été, on a recueilli un total de 675 excréments sur le site des terriers, et chaque été, on a compté le nombre de résidents adultes et de petits qui faisaient leur première sortie du terrier. Les petits rongeurs (surtout Lemmus sp. et Microtus sp.) étaient la proie la plus fréquemment consommée et constituaient le plus gros volume des excréments, en toute saison et à toute étape de la vie du rongeur. Les petits rongeurs étaient suivis en fréquence par le renne (Rangifer tarandus), le lièvre (Lepus timidus), les oiseaux et la végétation. Les oiseaux et les plantes étaient plus courants dans le régime alimentaire estival que dans celui hivernal, ce qui reflétait la disponibilité saisonnière. Le volume relatif de renne et d'oiseaux dans l'alimentation diminuait avec l'augmentation de rongeurs. La production accrue de petits était associée aux années de grande abondance de rongeurs et à une occurrence élevée de rongeurs dans l'alimentation. Le nombre des adultes n'était pas relié à l'abondance de rongeurs. Article in Journal/Newspaper Alopex lagopus Arctic Arctic Fox Arctic Arctique* Lepus timidus Rangifer tarandus renard arctique renne University of Calgary Journal Hosting Arctic Le Plateau ENVELOPE(70.250,70.250,-49.350,-49.350) Norway Renard ENVELOPE(-63.767,-63.767,-65.017,-65.017) Renne ENVELOPE(9.698,9.698,63.505,63.505) Snøhetta ENVELOPE(-2.783,-2.783,-72.183,-72.183) ARCTIC 52 3 |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
arctic fox Alopex lagopus diet reproduction renard arctique alimentation |
spellingShingle |
arctic fox Alopex lagopus diet reproduction renard arctique alimentation Strand, Olav Linnell, John D.C. Krogstad, Steinar Landa, Arild Dietary and Reproductive Responses of Arctic Foxes to Changes in Small Rodent Abundance |
topic_facet |
arctic fox Alopex lagopus diet reproduction renard arctique alimentation |
description |
Between 1988 and 1995, dens in three adjacent arctic fox (Alopex lagopus) territories were monitored in an alpine environment in south-central Norway (the Snøhetta plateau). A total of 675 scats were collected at dens in both winter and summer, and the numbers of resident adults and pups at emergence were counted each summer. Small rodents (mainly Lemmus sp. and Microtus sp.) were the most frequently consumed prey and made up the greatest volume within scats, in all seasons and at all stages of the rodent cycle. Small rodents were followed in frequency by reindeer (Rangifer tarandus), hares (Lepus timidus), birds, and vegetation. Birds and vegetation were more common in the summer diet than in the winter diet, reflecting their seasonal availability. The relative volume of reindeer and birds in the diet decreased with increasing rodent abundance. Increased pup production was associated with years of high rodent abundance and a high occurrence of rodents in the diet. Adult numbers were not associated with rodent abundance. Entre 1988 et 1995, on a observé les terriers du renard arctique (Alopex lagopus), dans trois territoires contigus situés dans un environnement alpin du centre-sud de la Norvège (le plateau Snøhetta). En hiver et en été, on a recueilli un total de 675 excréments sur le site des terriers, et chaque été, on a compté le nombre de résidents adultes et de petits qui faisaient leur première sortie du terrier. Les petits rongeurs (surtout Lemmus sp. et Microtus sp.) étaient la proie la plus fréquemment consommée et constituaient le plus gros volume des excréments, en toute saison et à toute étape de la vie du rongeur. Les petits rongeurs étaient suivis en fréquence par le renne (Rangifer tarandus), le lièvre (Lepus timidus), les oiseaux et la végétation. Les oiseaux et les plantes étaient plus courants dans le régime alimentaire estival que dans celui hivernal, ce qui reflétait la disponibilité saisonnière. Le volume relatif de renne et d'oiseaux dans l'alimentation diminuait avec l'augmentation de rongeurs. La production accrue de petits était associée aux années de grande abondance de rongeurs et à une occurrence élevée de rongeurs dans l'alimentation. Le nombre des adultes n'était pas relié à l'abondance de rongeurs. |
format |
Article in Journal/Newspaper |
author |
Strand, Olav Linnell, John D.C. Krogstad, Steinar Landa, Arild |
author_facet |
Strand, Olav Linnell, John D.C. Krogstad, Steinar Landa, Arild |
author_sort |
Strand, Olav |
title |
Dietary and Reproductive Responses of Arctic Foxes to Changes in Small Rodent Abundance |
title_short |
Dietary and Reproductive Responses of Arctic Foxes to Changes in Small Rodent Abundance |
title_full |
Dietary and Reproductive Responses of Arctic Foxes to Changes in Small Rodent Abundance |
title_fullStr |
Dietary and Reproductive Responses of Arctic Foxes to Changes in Small Rodent Abundance |
title_full_unstemmed |
Dietary and Reproductive Responses of Arctic Foxes to Changes in Small Rodent Abundance |
title_sort |
dietary and reproductive responses of arctic foxes to changes in small rodent abundance |
publisher |
The Arctic Institute of North America |
publishDate |
1999 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63988 |
long_lat |
ENVELOPE(70.250,70.250,-49.350,-49.350) ENVELOPE(-63.767,-63.767,-65.017,-65.017) ENVELOPE(9.698,9.698,63.505,63.505) ENVELOPE(-2.783,-2.783,-72.183,-72.183) |
geographic |
Arctic Le Plateau Norway Renard Renne Snøhetta |
geographic_facet |
Arctic Le Plateau Norway Renard Renne Snøhetta |
genre |
Alopex lagopus Arctic Arctic Fox Arctic Arctique* Lepus timidus Rangifer tarandus renard arctique renne |
genre_facet |
Alopex lagopus Arctic Arctic Fox Arctic Arctique* Lepus timidus Rangifer tarandus renard arctique renne |
op_source |
ARCTIC; Vol. 52 No. 3 (1999): September: 237–324; 272-278 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63988/47923 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63988 |
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ARCTIC |
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52 |
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