Spatial relationships and behavior of polar bears ( Ursus maritimus Phipps) concentrated on land during the ice-free season of Hudson Bay
I observed polar bears (Ursus maritimus Phipps) at Cape Churchill, Manitoba, a site where polar bears congregate during the autumn when Hudson Bay is ice free. Adult males, subadult males, and subadult females were spatially segregated to a degree that depended primarily on density. The higher the d...
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Language: | English |
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Canadian Science Publishing
1981
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Online Access: | http://dx.doi.org/10.1139/z81-242 http://www.nrcresearchpress.com/doi/pdf/10.1139/z81-242 |
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crcansciencepubl:10.1139/z81-242 2024-09-15T18:01:30+00:00 Spatial relationships and behavior of polar bears ( Ursus maritimus Phipps) concentrated on land during the ice-free season of Hudson Bay Latour, Paul B. 1981 http://dx.doi.org/10.1139/z81-242 http://www.nrcresearchpress.com/doi/pdf/10.1139/z81-242 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 59, issue 9, page 1763-1774 ISSN 0008-4301 1480-3283 journal-article 1981 crcansciencepubl https://doi.org/10.1139/z81-242 2024-08-29T04:08:48Z I observed polar bears (Ursus maritimus Phipps) at Cape Churchill, Manitoba, a site where polar bears congregate during the autumn when Hudson Bay is ice free. Adult males, subadult males, and subadult females were spatially segregated to a degree that depended primarily on density. The higher the density, the greater the degree of segregation. Adult males showed the closest intraclass association. Subadult females spent more time in activity than did either adult or subadult males; this may be due to subadult females being approached more by other subadults. Much of an individual's social behavior occurred with members of its own age–sex class, perhaps as a result of spatial segregation. In the noncompetitive situation of this study, polar bears aggregated and were more social than when hunting on the sea ice. This study provides further evidence for the flexibility of carnivore social systems, not only between populations of the same species, but also within a single population. Article in Journal/Newspaper Cape Churchill Churchill Hudson Bay Sea ice Ursus maritimus Canadian Science Publishing Canadian Journal of Zoology 59 9 1763 1774 |
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Open Polar |
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Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
I observed polar bears (Ursus maritimus Phipps) at Cape Churchill, Manitoba, a site where polar bears congregate during the autumn when Hudson Bay is ice free. Adult males, subadult males, and subadult females were spatially segregated to a degree that depended primarily on density. The higher the density, the greater the degree of segregation. Adult males showed the closest intraclass association. Subadult females spent more time in activity than did either adult or subadult males; this may be due to subadult females being approached more by other subadults. Much of an individual's social behavior occurred with members of its own age–sex class, perhaps as a result of spatial segregation. In the noncompetitive situation of this study, polar bears aggregated and were more social than when hunting on the sea ice. This study provides further evidence for the flexibility of carnivore social systems, not only between populations of the same species, but also within a single population. |
format |
Article in Journal/Newspaper |
author |
Latour, Paul B. |
spellingShingle |
Latour, Paul B. Spatial relationships and behavior of polar bears ( Ursus maritimus Phipps) concentrated on land during the ice-free season of Hudson Bay |
author_facet |
Latour, Paul B. |
author_sort |
Latour, Paul B. |
title |
Spatial relationships and behavior of polar bears ( Ursus maritimus Phipps) concentrated on land during the ice-free season of Hudson Bay |
title_short |
Spatial relationships and behavior of polar bears ( Ursus maritimus Phipps) concentrated on land during the ice-free season of Hudson Bay |
title_full |
Spatial relationships and behavior of polar bears ( Ursus maritimus Phipps) concentrated on land during the ice-free season of Hudson Bay |
title_fullStr |
Spatial relationships and behavior of polar bears ( Ursus maritimus Phipps) concentrated on land during the ice-free season of Hudson Bay |
title_full_unstemmed |
Spatial relationships and behavior of polar bears ( Ursus maritimus Phipps) concentrated on land during the ice-free season of Hudson Bay |
title_sort |
spatial relationships and behavior of polar bears ( ursus maritimus phipps) concentrated on land during the ice-free season of hudson bay |
publisher |
Canadian Science Publishing |
publishDate |
1981 |
url |
http://dx.doi.org/10.1139/z81-242 http://www.nrcresearchpress.com/doi/pdf/10.1139/z81-242 |
genre |
Cape Churchill Churchill Hudson Bay Sea ice Ursus maritimus |
genre_facet |
Cape Churchill Churchill Hudson Bay Sea ice Ursus maritimus |
op_source |
Canadian Journal of Zoology volume 59, issue 9, page 1763-1774 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z81-242 |
container_title |
Canadian Journal of Zoology |
container_volume |
59 |
container_issue |
9 |
container_start_page |
1763 |
op_container_end_page |
1774 |
_version_ |
1810438638398341120 |