Low abundance of King eider nests during low lemming years in Northeast Greenland

ABSTRACT. Long-term surveys on Traill Island (Northeast Greenland) show that numbers of king eider (Somateria spectabilis) nests are correlated with high densities of collared lemming (Dicrostonyx groenlandicus). These observations match other zoological records from this region and agree with simil...

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Main Authors: Benoît Sittler, Olivier Gilg, Thomas B. Berg
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2000
Subjects:
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.408.8728
http://www.helsinki.fi/~ihanski/Articles_by_others/Arctic 2000 Sittler et al.pdf
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spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.408.8728 2023-05-15T13:19:52+02:00 Low abundance of King eider nests during low lemming years in Northeast Greenland Benoît Sittler Olivier Gilg Thomas B. Berg The Pennsylvania State University CiteSeerX Archives 2000 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.408.8728 http://www.helsinki.fi/~ihanski/Articles_by_others/Arctic 2000 Sittler et al.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.408.8728 http://www.helsinki.fi/~ihanski/Articles_by_others/Arctic 2000 Sittler et al.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.helsinki.fi/~ihanski/Articles_by_others/Arctic 2000 Sittler et al.pdf text 2000 ftciteseerx 2016-01-08T03:11:14Z ABSTRACT. Long-term surveys on Traill Island (Northeast Greenland) show that numbers of king eider (Somateria spectabilis) nests are correlated with high densities of collared lemming (Dicrostonyx groenlandicus). These observations match other zoological records from this region and agree with similar observations recorded elsewhere for arctic geese. Processes at work may be related to the fact that mammalian predators focus on lemmings when lemming numbers are high, but exert higher predation pressure on other prey at low lemming densities. Predators seem to increase their search effort during such low lemming years, thus increasing the likelihood that they will discover eider nests. This study highlights the importance of studying patterns at the community level in any attempt to interpret cyclic fluctuations in northern ecosystems. Key words: arctic fox, Alopex lagopus, collared lemming, Dicrostonyx groenlandicus, Greenland, king eider, Somateria spectabilis, population cycles, predation RÉSUMÉ. Une étude à long terme menée sur l’île de Traill (nord-est du Groenland) a mis en évidence que le nombre de nids d’eiders à tête grise (Somateria spectabilis) est corrélé à de fortes densités de lemming à collier (Dicrostonyx groenlandicus). Ces observations sont identiques à celles des autres relevés fauniques réalisés dans cette région et confortent des constats similaires sur le succès de reproduction des oies arctiques. Le déterminisme de ces phénomènes semble être lié au fait que les mammifères prédateurs se concentrent sur les lemmings lorsque ces derniers sont abondants, mais exercent une pression de prédation plus forte sur les autres espèces lorsque les lemmings se font plus rares. L’effort de recherche des prédateurs semble augmenter durant les Text Alopex lagopus Arctic Arctic Fox Arctic Arctique* Dicrostonyx groenlandicus Greenland Groenland King Eider Somateria spectabilis Traill Island Unknown Arctic Greenland Collier ENVELOPE(-61.864,-61.864,-70.221,-70.221)
institution Open Polar
collection Unknown
op_collection_id ftciteseerx
language English
description ABSTRACT. Long-term surveys on Traill Island (Northeast Greenland) show that numbers of king eider (Somateria spectabilis) nests are correlated with high densities of collared lemming (Dicrostonyx groenlandicus). These observations match other zoological records from this region and agree with similar observations recorded elsewhere for arctic geese. Processes at work may be related to the fact that mammalian predators focus on lemmings when lemming numbers are high, but exert higher predation pressure on other prey at low lemming densities. Predators seem to increase their search effort during such low lemming years, thus increasing the likelihood that they will discover eider nests. This study highlights the importance of studying patterns at the community level in any attempt to interpret cyclic fluctuations in northern ecosystems. Key words: arctic fox, Alopex lagopus, collared lemming, Dicrostonyx groenlandicus, Greenland, king eider, Somateria spectabilis, population cycles, predation RÉSUMÉ. Une étude à long terme menée sur l’île de Traill (nord-est du Groenland) a mis en évidence que le nombre de nids d’eiders à tête grise (Somateria spectabilis) est corrélé à de fortes densités de lemming à collier (Dicrostonyx groenlandicus). Ces observations sont identiques à celles des autres relevés fauniques réalisés dans cette région et confortent des constats similaires sur le succès de reproduction des oies arctiques. Le déterminisme de ces phénomènes semble être lié au fait que les mammifères prédateurs se concentrent sur les lemmings lorsque ces derniers sont abondants, mais exercent une pression de prédation plus forte sur les autres espèces lorsque les lemmings se font plus rares. L’effort de recherche des prédateurs semble augmenter durant les
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author Benoît Sittler
Olivier Gilg
Thomas B. Berg
spellingShingle Benoît Sittler
Olivier Gilg
Thomas B. Berg
Low abundance of King eider nests during low lemming years in Northeast Greenland
author_facet Benoît Sittler
Olivier Gilg
Thomas B. Berg
author_sort Benoît Sittler
title Low abundance of King eider nests during low lemming years in Northeast Greenland
title_short Low abundance of King eider nests during low lemming years in Northeast Greenland
title_full Low abundance of King eider nests during low lemming years in Northeast Greenland
title_fullStr Low abundance of King eider nests during low lemming years in Northeast Greenland
title_full_unstemmed Low abundance of King eider nests during low lemming years in Northeast Greenland
title_sort low abundance of king eider nests during low lemming years in northeast greenland
publishDate 2000
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.408.8728
http://www.helsinki.fi/~ihanski/Articles_by_others/Arctic 2000 Sittler et al.pdf
long_lat ENVELOPE(-61.864,-61.864,-70.221,-70.221)
geographic Arctic
Greenland
Collier
geographic_facet Arctic
Greenland
Collier
genre Alopex lagopus
Arctic
Arctic Fox
Arctic
Arctique*
Dicrostonyx groenlandicus
Greenland
Groenland
King Eider
Somateria spectabilis
Traill Island
genre_facet Alopex lagopus
Arctic
Arctic Fox
Arctic
Arctique*
Dicrostonyx groenlandicus
Greenland
Groenland
King Eider
Somateria spectabilis
Traill Island
op_source http://www.helsinki.fi/~ihanski/Articles_by_others/Arctic 2000 Sittler et al.pdf
op_relation http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.408.8728
http://www.helsinki.fi/~ihanski/Articles_by_others/Arctic 2000 Sittler et al.pdf
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