The diet of the brown bear Ursus arctosin the Pasvik Valley, northeastern Norway
The seasonal composition of and the annual variation in the diet of the brown bear Ursus arctos in the Pasvik Valley, northeastern Norway, were estimated based on the analysis of 137 bear scats. The importance of moose Alces alces and reindeer Rangifer tarandus in the diet was given special attentio...
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crwiley:10.2981/wlb.2001.006 2024-09-30T14:22:02+00:00 The diet of the brown bear Ursus arctosin the Pasvik Valley, northeastern Norway Persson, Inga‐Lill Wikan, Steinar Swenson, Jon E. Mysterud, Ivar 2001 http://dx.doi.org/10.2981/wlb.2001.006 https://onlinelibrary.wiley.com/doi/full-xml/10.2981/wlb.2001.006 https://onlinelibrary.wiley.com/doi/pdf/10.2981/wlb.2001.006 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Wildlife Biology volume 7, issue 1, page 27-37 ISSN 1903-220X 1903-220X journal-article 2001 crwiley https://doi.org/10.2981/wlb.2001.006 2024-09-05T05:08:50Z The seasonal composition of and the annual variation in the diet of the brown bear Ursus arctos in the Pasvik Valley, northeastern Norway, were estimated based on the analysis of 137 bear scats. The importance of moose Alces alces and reindeer Rangifer tarandus in the diet was given special attention, because results from Russia suggest that brown bears are generally more carnivorous in the north. Ungulates, especially adult moose, comprised the most important food item for bears in the Pasvik Valley during spring and summer, contributing 85 and 70% of the Estimated Dietary Energy Content (EDEC), respectively. During autumn, when the bears have to build up fat reserves and increase lean body mass for hibernation, berries were the most important food item, contributing 49% of the EDEC, but ungulates were still important, contributing 30% of the EDEC. Insects and vegetation were of low importance in all seasons. The proportion of ungulates in the diet of brown bears in the Pasvik Valley was considerably higher than farther south in Scandinavia, and this regional difference is important concerning bear and moose management in northern areas. Article in Journal/Newspaper Alces alces Pasvik Rangifer tarandus Ursus arctos Wiley Online Library Norway Pasvik ENVELOPE(30.580,30.580,69.810,69.810) Wildlife Biology 7 1 27 37 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
The seasonal composition of and the annual variation in the diet of the brown bear Ursus arctos in the Pasvik Valley, northeastern Norway, were estimated based on the analysis of 137 bear scats. The importance of moose Alces alces and reindeer Rangifer tarandus in the diet was given special attention, because results from Russia suggest that brown bears are generally more carnivorous in the north. Ungulates, especially adult moose, comprised the most important food item for bears in the Pasvik Valley during spring and summer, contributing 85 and 70% of the Estimated Dietary Energy Content (EDEC), respectively. During autumn, when the bears have to build up fat reserves and increase lean body mass for hibernation, berries were the most important food item, contributing 49% of the EDEC, but ungulates were still important, contributing 30% of the EDEC. Insects and vegetation were of low importance in all seasons. The proportion of ungulates in the diet of brown bears in the Pasvik Valley was considerably higher than farther south in Scandinavia, and this regional difference is important concerning bear and moose management in northern areas. |
format |
Article in Journal/Newspaper |
author |
Persson, Inga‐Lill Wikan, Steinar Swenson, Jon E. Mysterud, Ivar |
spellingShingle |
Persson, Inga‐Lill Wikan, Steinar Swenson, Jon E. Mysterud, Ivar The diet of the brown bear Ursus arctosin the Pasvik Valley, northeastern Norway |
author_facet |
Persson, Inga‐Lill Wikan, Steinar Swenson, Jon E. Mysterud, Ivar |
author_sort |
Persson, Inga‐Lill |
title |
The diet of the brown bear Ursus arctosin the Pasvik Valley, northeastern Norway |
title_short |
The diet of the brown bear Ursus arctosin the Pasvik Valley, northeastern Norway |
title_full |
The diet of the brown bear Ursus arctosin the Pasvik Valley, northeastern Norway |
title_fullStr |
The diet of the brown bear Ursus arctosin the Pasvik Valley, northeastern Norway |
title_full_unstemmed |
The diet of the brown bear Ursus arctosin the Pasvik Valley, northeastern Norway |
title_sort |
diet of the brown bear ursus arctosin the pasvik valley, northeastern norway |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.2981/wlb.2001.006 https://onlinelibrary.wiley.com/doi/full-xml/10.2981/wlb.2001.006 https://onlinelibrary.wiley.com/doi/pdf/10.2981/wlb.2001.006 |
long_lat |
ENVELOPE(30.580,30.580,69.810,69.810) |
geographic |
Norway Pasvik |
geographic_facet |
Norway Pasvik |
genre |
Alces alces Pasvik Rangifer tarandus Ursus arctos |
genre_facet |
Alces alces Pasvik Rangifer tarandus Ursus arctos |
op_source |
Wildlife Biology volume 7, issue 1, page 27-37 ISSN 1903-220X 1903-220X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.2981/wlb.2001.006 |
container_title |
Wildlife Biology |
container_volume |
7 |
container_issue |
1 |
container_start_page |
27 |
op_container_end_page |
37 |
_version_ |
1811646825928589312 |