Winter den abandonment by brown bears Ursus arctos: causes and consequences
Winter den abandonment by brown bears Ursus arctos in south‐central Sweden and southeastern Norway was found to occur in 9% of 194 bearwinters, based on 68 radio‐marked bears almost two years old and older. There was no statistical difference between the sexes, between adults and subadults, nor did...
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crwiley:10.2981/wlb.1997.005 2024-09-15T18:40:08+00:00 Winter den abandonment by brown bears Ursus arctos: causes and consequences Swenson, Jon E. Sandegren, Finn Brunberg, Sven Wabakken, Petter Naturvårdsverket 1997 http://dx.doi.org/10.2981/wlb.1997.005 https://onlinelibrary.wiley.com/doi/full-xml/10.2981/wlb.1997.005 https://onlinelibrary.wiley.com/doi/pdf/10.2981/wlb.1997.005 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Wildlife Biology volume 3, issue 1, page 35-38 ISSN 1903-220X 1903-220X journal-article 1997 crwiley https://doi.org/10.2981/wlb.1997.005 2024-08-22T04:16:20Z Winter den abandonment by brown bears Ursus arctos in south‐central Sweden and southeastern Norway was found to occur in 9% of 194 bearwinters, based on 68 radio‐marked bears almost two years old and older. There was no statistical difference between the sexes, between adults and subadults, nor did protection from military or timber‐harvesting activities reduce the rate of abandonment. Although anecdotal, observations suggest that human disturbance was a major cause of den abandonment. Most abandonment occurred early in the denning period, before mid‐winter. Bears moved up to 30 km before denning again. Distance was not related to sex, age, or time of abandonment. Apparently for the first time, a fitness cost of den abandonment is documented: pregnant females that changed dens prior to parturition lost young in or near the den significantly more often than those that did not move. Article in Journal/Newspaper Ursus arctos Wiley Online Library Wildlife Biology 3 1 35 38 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Winter den abandonment by brown bears Ursus arctos in south‐central Sweden and southeastern Norway was found to occur in 9% of 194 bearwinters, based on 68 radio‐marked bears almost two years old and older. There was no statistical difference between the sexes, between adults and subadults, nor did protection from military or timber‐harvesting activities reduce the rate of abandonment. Although anecdotal, observations suggest that human disturbance was a major cause of den abandonment. Most abandonment occurred early in the denning period, before mid‐winter. Bears moved up to 30 km before denning again. Distance was not related to sex, age, or time of abandonment. Apparently for the first time, a fitness cost of den abandonment is documented: pregnant females that changed dens prior to parturition lost young in or near the den significantly more often than those that did not move. |
author2 |
Naturvårdsverket |
format |
Article in Journal/Newspaper |
author |
Swenson, Jon E. Sandegren, Finn Brunberg, Sven Wabakken, Petter |
spellingShingle |
Swenson, Jon E. Sandegren, Finn Brunberg, Sven Wabakken, Petter Winter den abandonment by brown bears Ursus arctos: causes and consequences |
author_facet |
Swenson, Jon E. Sandegren, Finn Brunberg, Sven Wabakken, Petter |
author_sort |
Swenson, Jon E. |
title |
Winter den abandonment by brown bears Ursus arctos: causes and consequences |
title_short |
Winter den abandonment by brown bears Ursus arctos: causes and consequences |
title_full |
Winter den abandonment by brown bears Ursus arctos: causes and consequences |
title_fullStr |
Winter den abandonment by brown bears Ursus arctos: causes and consequences |
title_full_unstemmed |
Winter den abandonment by brown bears Ursus arctos: causes and consequences |
title_sort |
winter den abandonment by brown bears ursus arctos: causes and consequences |
publisher |
Wiley |
publishDate |
1997 |
url |
http://dx.doi.org/10.2981/wlb.1997.005 https://onlinelibrary.wiley.com/doi/full-xml/10.2981/wlb.1997.005 https://onlinelibrary.wiley.com/doi/pdf/10.2981/wlb.1997.005 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
Wildlife Biology volume 3, issue 1, page 35-38 ISSN 1903-220X 1903-220X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.2981/wlb.1997.005 |
container_title |
Wildlife Biology |
container_volume |
3 |
container_issue |
1 |
container_start_page |
35 |
op_container_end_page |
38 |
_version_ |
1810484458526081024 |