Terrestrial foraging by polar bears during the ice-free period in western Hudson Bay
ABSTRACT. Food habits of polar bears on land during the ice-free period in western Hudson Bay were examined between 1986 and 1992. In contrast to previous studies, feeding on vegetation during the ice-free period was common. Between August and October, evidence of feeding was found in 34 % of the fe...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.555.1960 2023-05-15T14:19:34+02:00 Terrestrial foraging by polar bears during the ice-free period in western Hudson Bay Andrew E. Derocher Dennis Andriashek Ian Stirling The Pennsylvania State University CiteSeerX Archives 1993 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.1960 http://pubs.aina.ucalgary.ca/arctic/Arctic46-3-251.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.1960 http://pubs.aina.ucalgary.ca/arctic/Arctic46-3-251.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.aina.ucalgary.ca/arctic/Arctic46-3-251.pdf Key words polar bears Ursus maritimus feeding arctic food web text 1993 ftciteseerx 2016-01-08T11:44:32Z ABSTRACT. Food habits of polar bears on land during the ice-free period in western Hudson Bay were examined between 1986 and 1992. In contrast to previous studies, feeding on vegetation during the ice-free period was common. Between August and October, evidence of feeding was found in 34 % of the females and 26 % of the males captured over 10 km inland from the coast. The primary forage was Vaccinium uliginosum and Empetrum nigrum berries. Feeding was most common in subadults and females. The incidence of feeding on berries varied annually from 2 to 41 %. We were not able to determine the energetic importance of terrestrial foraging, but the intake may reduce the rate of weight loss of bears on land, particularly in years when berries are abundant. Text Arctic Arctic Empetrum nigrum Hudson Bay Ursus maritimus Unknown Arctic Hudson Hudson Bay |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Key words polar bears Ursus maritimus feeding arctic food web |
spellingShingle |
Key words polar bears Ursus maritimus feeding arctic food web Andrew E. Derocher Dennis Andriashek Ian Stirling Terrestrial foraging by polar bears during the ice-free period in western Hudson Bay |
topic_facet |
Key words polar bears Ursus maritimus feeding arctic food web |
description |
ABSTRACT. Food habits of polar bears on land during the ice-free period in western Hudson Bay were examined between 1986 and 1992. In contrast to previous studies, feeding on vegetation during the ice-free period was common. Between August and October, evidence of feeding was found in 34 % of the females and 26 % of the males captured over 10 km inland from the coast. The primary forage was Vaccinium uliginosum and Empetrum nigrum berries. Feeding was most common in subadults and females. The incidence of feeding on berries varied annually from 2 to 41 %. We were not able to determine the energetic importance of terrestrial foraging, but the intake may reduce the rate of weight loss of bears on land, particularly in years when berries are abundant. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Andrew E. Derocher Dennis Andriashek Ian Stirling |
author_facet |
Andrew E. Derocher Dennis Andriashek Ian Stirling |
author_sort |
Andrew E. Derocher |
title |
Terrestrial foraging by polar bears during the ice-free period in western Hudson Bay |
title_short |
Terrestrial foraging by polar bears during the ice-free period in western Hudson Bay |
title_full |
Terrestrial foraging by polar bears during the ice-free period in western Hudson Bay |
title_fullStr |
Terrestrial foraging by polar bears during the ice-free period in western Hudson Bay |
title_full_unstemmed |
Terrestrial foraging by polar bears during the ice-free period in western Hudson Bay |
title_sort |
terrestrial foraging by polar bears during the ice-free period in western hudson bay |
publishDate |
1993 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.1960 http://pubs.aina.ucalgary.ca/arctic/Arctic46-3-251.pdf |
geographic |
Arctic Hudson Hudson Bay |
geographic_facet |
Arctic Hudson Hudson Bay |
genre |
Arctic Arctic Empetrum nigrum Hudson Bay Ursus maritimus |
genre_facet |
Arctic Arctic Empetrum nigrum Hudson Bay Ursus maritimus |
op_source |
http://pubs.aina.ucalgary.ca/arctic/Arctic46-3-251.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.1960 http://pubs.aina.ucalgary.ca/arctic/Arctic46-3-251.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766291380017037312 |