Distribution and Abundance of Canadian Polar Bear Populations: A Management Perspective
Seasonal fidelity to relatively local areas and natural obstacles to movements allow the range of polar bears (Ursus maritimus) in Canada to be divided into 12 relatively distinct populations. These divisions are not the only ones possible, and may not be the best ones; however, they were consistent...
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1995
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/64291 2023-05-15T14:19:10+02:00 Distribution and Abundance of Canadian Polar Bear Populations: A Management Perspective Taylor, Mitchell Lee, John 1995-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64291 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64291/48226 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64291 ARCTIC; Vol. 48 No. 2 (1995): June: 109–206; 147-154 1923-1245 0004-0843 Animal distribution Animal population Animal tagging Polar bears Wildlife management Wildlife habitat Alaska Canadian Arctic Greenland North American Arctic info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1995 ftunivcalgaryojs 2022-03-22T21:21:32Z Seasonal fidelity to relatively local areas and natural obstacles to movements allow the range of polar bears (Ursus maritimus) in Canada to be divided into 12 relatively distinct populations. These divisions are not the only ones possible, and may not be the best ones; however, they were consistent with observed movements of marked bears. The average area of sea ice (mainly annual ice) that constitutes polar bear habitat for populations within and shared with Canada was estimated to total approximately 3.1 million sq km in April each year. The density estimates of polar bears ranged between 1.1 and 10.4 bears per 1000 sq km with a weighted mean of 4.1 bears per 1000 sq km. The sum of polar bear population estimates within or partially within Canada is approximately 12 700. However, the available data were insufficient to quantify the precision and accuracy of some population estimates.Key words: abundance, Arctic, bear, distribution, polar bear, population, Ursus maritimus La fidélité saisonnière des ours polaires (Ursus maritimus) à des régions suffisamment délimitées et des obstacles naturels à leurs déplacements permettent de diviser leur territoire au Canada en 12 populations relativement distinctes. Cette division n'est pas la seule possible et elle n'est peut-être pas la meilleure; elle cadre cependant avec les déplacements d'ours marqués que l'on a observés. On estime à environ 3,1 millions de km², en avril de chaque année, la superficie moyenne de la glace de mer (surtout de glace annuelle) qui constitue l'habitat de l'ours polaire pour les populations vivant à l'intérieur du Canada, ou communes à d'autres pays. L'estimation de la densité des ours polaires va de 1,1 à 10,4 ours par 1000 km², avec une moyenne pondérée de 4,1 ours par 1000 km². Le total des populations d'ours polaires dont le territoire est situé en tout ou en partie au Canada est estimé à environ 12 700 individus. Les données disponibles sont cependant insuffisantes pour quantifier la précision et l'exactitude de certaines estimations de population.Mots clés: abondance, Arctique, ours, distribution, ours polaire, population, Ursus maritimus Article in Journal/Newspaper Arctic Arctic Arctique* Greenland ours polaire polar bear Sea ice Ursus maritimus Alaska University of Calgary Journal Hosting Arctic Canada Greenland ARCTIC 48 2 |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
Animal distribution Animal population Animal tagging Polar bears Wildlife management Wildlife habitat Alaska Canadian Arctic Greenland North American Arctic |
spellingShingle |
Animal distribution Animal population Animal tagging Polar bears Wildlife management Wildlife habitat Alaska Canadian Arctic Greenland North American Arctic Taylor, Mitchell Lee, John Distribution and Abundance of Canadian Polar Bear Populations: A Management Perspective |
topic_facet |
Animal distribution Animal population Animal tagging Polar bears Wildlife management Wildlife habitat Alaska Canadian Arctic Greenland North American Arctic |
description |
Seasonal fidelity to relatively local areas and natural obstacles to movements allow the range of polar bears (Ursus maritimus) in Canada to be divided into 12 relatively distinct populations. These divisions are not the only ones possible, and may not be the best ones; however, they were consistent with observed movements of marked bears. The average area of sea ice (mainly annual ice) that constitutes polar bear habitat for populations within and shared with Canada was estimated to total approximately 3.1 million sq km in April each year. The density estimates of polar bears ranged between 1.1 and 10.4 bears per 1000 sq km with a weighted mean of 4.1 bears per 1000 sq km. The sum of polar bear population estimates within or partially within Canada is approximately 12 700. However, the available data were insufficient to quantify the precision and accuracy of some population estimates.Key words: abundance, Arctic, bear, distribution, polar bear, population, Ursus maritimus La fidélité saisonnière des ours polaires (Ursus maritimus) à des régions suffisamment délimitées et des obstacles naturels à leurs déplacements permettent de diviser leur territoire au Canada en 12 populations relativement distinctes. Cette division n'est pas la seule possible et elle n'est peut-être pas la meilleure; elle cadre cependant avec les déplacements d'ours marqués que l'on a observés. On estime à environ 3,1 millions de km², en avril de chaque année, la superficie moyenne de la glace de mer (surtout de glace annuelle) qui constitue l'habitat de l'ours polaire pour les populations vivant à l'intérieur du Canada, ou communes à d'autres pays. L'estimation de la densité des ours polaires va de 1,1 à 10,4 ours par 1000 km², avec une moyenne pondérée de 4,1 ours par 1000 km². Le total des populations d'ours polaires dont le territoire est situé en tout ou en partie au Canada est estimé à environ 12 700 individus. Les données disponibles sont cependant insuffisantes pour quantifier la précision et l'exactitude de certaines estimations de population.Mots clés: abondance, Arctique, ours, distribution, ours polaire, population, Ursus maritimus |
format |
Article in Journal/Newspaper |
author |
Taylor, Mitchell Lee, John |
author_facet |
Taylor, Mitchell Lee, John |
author_sort |
Taylor, Mitchell |
title |
Distribution and Abundance of Canadian Polar Bear Populations: A Management Perspective |
title_short |
Distribution and Abundance of Canadian Polar Bear Populations: A Management Perspective |
title_full |
Distribution and Abundance of Canadian Polar Bear Populations: A Management Perspective |
title_fullStr |
Distribution and Abundance of Canadian Polar Bear Populations: A Management Perspective |
title_full_unstemmed |
Distribution and Abundance of Canadian Polar Bear Populations: A Management Perspective |
title_sort |
distribution and abundance of canadian polar bear populations: a management perspective |
publisher |
The Arctic Institute of North America |
publishDate |
1995 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64291 |
geographic |
Arctic Canada Greenland |
geographic_facet |
Arctic Canada Greenland |
genre |
Arctic Arctic Arctique* Greenland ours polaire polar bear Sea ice Ursus maritimus Alaska |
genre_facet |
Arctic Arctic Arctique* Greenland ours polaire polar bear Sea ice Ursus maritimus Alaska |
op_source |
ARCTIC; Vol. 48 No. 2 (1995): June: 109–206; 147-154 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64291/48226 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64291 |
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ARCTIC |
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48 |
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