Low Abundance of King Eider Nests during Low Lemming Years in Northeast Greenland

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 observa...

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Published in:ARCTIC
Main Authors: Sittler, Benoît, Gilg, Olivier, Berg, Thomas B.
Format: Article in Journal/Newspaper
Language:English
Published: The Arctic Institute of North America 2000
Subjects:
Online Access:https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63891
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spelling ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/63891 2023-05-15T13:19:53+02:00 Low Abundance of King Eider Nests during Low Lemming Years in Northeast Greenland Sittler, Benoît Gilg, Olivier Berg, Thomas B. 2000-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63891 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63891/47826 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63891 ARCTIC; Vol. 53 No. 1 (2000): March: 1–99; 53-60 1923-1245 0004-0843 arctic fox Alopex lagopus collared lemming Dicrostonyx groenlandicus Greenland king eider Somateria spectabilis population cycles predation info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 2000 ftunivcalgaryojs 2022-03-22T21:21:09Z 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. 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 années de creux, ce qui accroît la probabilité de découvrir les nids d'eiders. Cette étude souligne l'importance d'examiner les phénomènes dans l'ensemble de la communauté animale pour tenter d'expliquer les fluctuations cycliques dans les écosystèmes nordiques. Article in Journal/Newspaper Alopex lagopus Arctic Arctic Fox Arctic Arctique* Dicrostonyx groenlandicus Greenland Groenland King Eider Somateria spectabilis Traill Island University of Calgary Journal Hosting Arctic Collier ENVELOPE(-61.864,-61.864,-70.221,-70.221) Greenland ARCTIC 53 1
institution Open Polar
collection University of Calgary Journal Hosting
op_collection_id ftunivcalgaryojs
language English
topic arctic fox
Alopex lagopus
collared lemming
Dicrostonyx groenlandicus
Greenland
king eider
Somateria spectabilis
population cycles
predation
spellingShingle arctic fox
Alopex lagopus
collared lemming
Dicrostonyx groenlandicus
Greenland
king eider
Somateria spectabilis
population cycles
predation
Sittler, Benoît
Gilg, Olivier
Berg, Thomas B.
Low Abundance of King Eider Nests during Low Lemming Years in Northeast Greenland
topic_facet arctic fox
Alopex lagopus
collared lemming
Dicrostonyx groenlandicus
Greenland
king eider
Somateria spectabilis
population cycles
predation
description 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. 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 années de creux, ce qui accroît la probabilité de découvrir les nids d'eiders. Cette étude souligne l'importance d'examiner les phénomènes dans l'ensemble de la communauté animale pour tenter d'expliquer les fluctuations cycliques dans les écosystèmes nordiques.
format Article in Journal/Newspaper
author Sittler, Benoît
Gilg, Olivier
Berg, Thomas B.
author_facet Sittler, Benoît
Gilg, Olivier
Berg, Thomas B.
author_sort Sittler, Benoît
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
publisher The Arctic Institute of North America
publishDate 2000
url https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63891
long_lat ENVELOPE(-61.864,-61.864,-70.221,-70.221)
geographic Arctic
Collier
Greenland
geographic_facet Arctic
Collier
Greenland
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 ARCTIC; Vol. 53 No. 1 (2000): March: 1–99; 53-60
1923-1245
0004-0843
op_relation https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63891/47826
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63891
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