Status of High Arctic Black-Legged Kittiwake (Rissa tridactyla) Colonies in Barrow Strait, Nunavut, Canada
We used aerial survey estimates, photographic censuses, and plot counts to examine trends in the size of five black-legged kittiwake (Rissa tridactyla) colonies around Barrow Strait, eastern Nunavut, Canada, between 1972 and 2007. During these three decades, one small colony disappeared, two medium-...
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2009
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/63180 2023-05-15T14:19:03+02:00 Status of High Arctic Black-Legged Kittiwake (Rissa tridactyla) Colonies in Barrow Strait, Nunavut, Canada Mallory, Mark L. Akearok, Jason A. Gaston, Anthony J. 2009-09-04 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63180 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63180/47118 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63180 ARCTIC; Vol. 62 No. 1 (2009): March: 1–118; 96-101 1923-1245 0004-0843 black-legged kittiwake Rissa tridactyla Arctic population trend mouette tridactyle Arctique tendance caractérisant la population info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 2009 ftunivcalgaryojs 2022-03-22T21:20:38Z We used aerial survey estimates, photographic censuses, and plot counts to examine trends in the size of five black-legged kittiwake (Rissa tridactyla) colonies around Barrow Strait, eastern Nunavut, Canada, between 1972 and 2007. During these three decades, one small colony disappeared, two medium-sized colonies showed no overall trend, and one moderate and one large colony appeared to increase in size. Collectively, the number of kittiwakes breeding in this region may have increased by over 40%. Counts of kittiwakes at some colonies were markedly low in 2003, following two consecutive years of late, extensive sea ice, although overall there was no significant relationship between numbers of kittiwakes attending colonies and sea-ice extent in Barrow Strait and Lancaster Sound. It is not known why kittiwake colonies in High Arctic Canada have apparently increased while those in West Greenland and elsewhere have declined, or what factors influenced these changes. Entre 1972 et 2007, à l’aide d’estimations effectuées à partir de levés aériens, de recensements photographiques et de dénombrements, nous avons examiné les tendances caractérisant la taille de cinq colonies de mouettes tridactyles (Rissa tridactyla) dans les environs du détroit de Barrow, dans l’est du Nunavut, au Canada. Pendant ces trois décennies, une petite colonie a disparu, deux colonies de taille moyenne n’ont affiché aucune tendance générale, tandis que la taille d’une colonie de taille modérée ainsi que celle d’une colonie de grande taille ont semblé augmenter. Collectivement, le nombre de mouettes tridactyles se reproduisant dans cette région pourrait s’être accru de plus de 40 pour cent. En 2003, le nombre de mouettes tridactyles de certaines colonies était nettement bas, ce qui suivait deux années consécutives de glace de mer tardive et étendue bien que dans l’ensemble, il n’existait pas de relation importante entre le nombre de mouettes tridactyles faisant partie des colonies et l’étendue de la glace de mer dans le détroit de Barrow et le bras de mer de Lancaster. On ne sait pas pourquoi les colonies de mouettes tridactyles de l’Extrême-Arctique sembleraient avoir pris de l’ampleur, tandis que les colonies de l’ouest du Groenland et d’ailleurs se sont amincies. De plus, on ne connaît pas les facteurs qui ont influencé ces changements. Article in Journal/Newspaper Arctic Arctic Arctic Population Arctique* Black-legged Kittiwake Greenland Groenland Lancaster Sound Mouette tridactyle Nunavut rissa tridactyla Sea ice University of Calgary Journal Hosting Arctic Barrow Strait ENVELOPE(-94.168,-94.168,74.402,74.402) Canada Greenland Lancaster Sound ENVELOPE(-83.999,-83.999,74.218,74.218) Nunavut ARCTIC 62 1 |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
black-legged kittiwake Rissa tridactyla Arctic population trend mouette tridactyle Arctique tendance caractérisant la population |
spellingShingle |
black-legged kittiwake Rissa tridactyla Arctic population trend mouette tridactyle Arctique tendance caractérisant la population Mallory, Mark L. Akearok, Jason A. Gaston, Anthony J. Status of High Arctic Black-Legged Kittiwake (Rissa tridactyla) Colonies in Barrow Strait, Nunavut, Canada |
topic_facet |
black-legged kittiwake Rissa tridactyla Arctic population trend mouette tridactyle Arctique tendance caractérisant la population |
description |
We used aerial survey estimates, photographic censuses, and plot counts to examine trends in the size of five black-legged kittiwake (Rissa tridactyla) colonies around Barrow Strait, eastern Nunavut, Canada, between 1972 and 2007. During these three decades, one small colony disappeared, two medium-sized colonies showed no overall trend, and one moderate and one large colony appeared to increase in size. Collectively, the number of kittiwakes breeding in this region may have increased by over 40%. Counts of kittiwakes at some colonies were markedly low in 2003, following two consecutive years of late, extensive sea ice, although overall there was no significant relationship between numbers of kittiwakes attending colonies and sea-ice extent in Barrow Strait and Lancaster Sound. It is not known why kittiwake colonies in High Arctic Canada have apparently increased while those in West Greenland and elsewhere have declined, or what factors influenced these changes. Entre 1972 et 2007, à l’aide d’estimations effectuées à partir de levés aériens, de recensements photographiques et de dénombrements, nous avons examiné les tendances caractérisant la taille de cinq colonies de mouettes tridactyles (Rissa tridactyla) dans les environs du détroit de Barrow, dans l’est du Nunavut, au Canada. Pendant ces trois décennies, une petite colonie a disparu, deux colonies de taille moyenne n’ont affiché aucune tendance générale, tandis que la taille d’une colonie de taille modérée ainsi que celle d’une colonie de grande taille ont semblé augmenter. Collectivement, le nombre de mouettes tridactyles se reproduisant dans cette région pourrait s’être accru de plus de 40 pour cent. En 2003, le nombre de mouettes tridactyles de certaines colonies était nettement bas, ce qui suivait deux années consécutives de glace de mer tardive et étendue bien que dans l’ensemble, il n’existait pas de relation importante entre le nombre de mouettes tridactyles faisant partie des colonies et l’étendue de la glace de mer dans le détroit de Barrow et le bras de mer de Lancaster. On ne sait pas pourquoi les colonies de mouettes tridactyles de l’Extrême-Arctique sembleraient avoir pris de l’ampleur, tandis que les colonies de l’ouest du Groenland et d’ailleurs se sont amincies. De plus, on ne connaît pas les facteurs qui ont influencé ces changements. |
format |
Article in Journal/Newspaper |
author |
Mallory, Mark L. Akearok, Jason A. Gaston, Anthony J. |
author_facet |
Mallory, Mark L. Akearok, Jason A. Gaston, Anthony J. |
author_sort |
Mallory, Mark L. |
title |
Status of High Arctic Black-Legged Kittiwake (Rissa tridactyla) Colonies in Barrow Strait, Nunavut, Canada |
title_short |
Status of High Arctic Black-Legged Kittiwake (Rissa tridactyla) Colonies in Barrow Strait, Nunavut, Canada |
title_full |
Status of High Arctic Black-Legged Kittiwake (Rissa tridactyla) Colonies in Barrow Strait, Nunavut, Canada |
title_fullStr |
Status of High Arctic Black-Legged Kittiwake (Rissa tridactyla) Colonies in Barrow Strait, Nunavut, Canada |
title_full_unstemmed |
Status of High Arctic Black-Legged Kittiwake (Rissa tridactyla) Colonies in Barrow Strait, Nunavut, Canada |
title_sort |
status of high arctic black-legged kittiwake (rissa tridactyla) colonies in barrow strait, nunavut, canada |
publisher |
The Arctic Institute of North America |
publishDate |
2009 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63180 |
long_lat |
ENVELOPE(-94.168,-94.168,74.402,74.402) ENVELOPE(-83.999,-83.999,74.218,74.218) |
geographic |
Arctic Barrow Strait Canada Greenland Lancaster Sound Nunavut |
geographic_facet |
Arctic Barrow Strait Canada Greenland Lancaster Sound Nunavut |
genre |
Arctic Arctic Arctic Population Arctique* Black-legged Kittiwake Greenland Groenland Lancaster Sound Mouette tridactyle Nunavut rissa tridactyla Sea ice |
genre_facet |
Arctic Arctic Arctic Population Arctique* Black-legged Kittiwake Greenland Groenland Lancaster Sound Mouette tridactyle Nunavut rissa tridactyla Sea ice |
op_source |
ARCTIC; Vol. 62 No. 1 (2009): March: 1–118; 96-101 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63180/47118 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63180 |
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