Predation on moose calves by European brown bears.
ABSTRACT In North America, brown bears (Ursus arctos) can be a significant predator on moose (Alces alces) calves. Our study in Sweden is the first in which brown bears are the only predator on moose calves. Bears and moose occurred at densities of about 30/1,000 km 2 and 920/ 1,000 km 2 , respectiv...
Main Authors: | , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
2007
|
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1079.1610 http://bearproject.info/old/uploads/publications/2007%20Swenson%20et%20al%20moose%20JWM.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.1079.1610 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.1079.1610 2023-05-15T13:13:04+02:00 Predation on moose calves by European brown bears. Jon E Swenson Ole Opseth Thomas Johansen The Pennsylvania State University CiteSeerX Archives 2007 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1079.1610 http://bearproject.info/old/uploads/publications/2007%20Swenson%20et%20al%20moose%20JWM.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1079.1610 http://bearproject.info/old/uploads/publications/2007%20Swenson%20et%20al%20moose%20JWM.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://bearproject.info/old/uploads/publications/2007%20Swenson%20et%20al%20moose%20JWM.pdf text 2007 ftciteseerx 2020-05-03T00:19:43Z ABSTRACT In North America, brown bears (Ursus arctos) can be a significant predator on moose (Alces alces) calves. Our study in Sweden is the first in which brown bears are the only predator on moose calves. Bears and moose occurred at densities of about 30/1,000 km 2 and 920/ 1,000 km 2 , respectively, and bears killed about 26% of the calves. Ninety-two percent of the predation took place when calves were ,1 month old. Bear predation was probably additive to other natural mortality, which was about 10% in areas both with and without bears. Females that lost their calves in spring produced more calves the following year (1.54 calves/F) than females that kept their calves (1.11 calves/F), which reduced the net loss of calves due to predation to about Text Alces alces Ursus arctos Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
ABSTRACT In North America, brown bears (Ursus arctos) can be a significant predator on moose (Alces alces) calves. Our study in Sweden is the first in which brown bears are the only predator on moose calves. Bears and moose occurred at densities of about 30/1,000 km 2 and 920/ 1,000 km 2 , respectively, and bears killed about 26% of the calves. Ninety-two percent of the predation took place when calves were ,1 month old. Bear predation was probably additive to other natural mortality, which was about 10% in areas both with and without bears. Females that lost their calves in spring produced more calves the following year (1.54 calves/F) than females that kept their calves (1.11 calves/F), which reduced the net loss of calves due to predation to about |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Jon E Swenson Ole Opseth Thomas Johansen |
spellingShingle |
Jon E Swenson Ole Opseth Thomas Johansen Predation on moose calves by European brown bears. |
author_facet |
Jon E Swenson Ole Opseth Thomas Johansen |
author_sort |
Jon E Swenson |
title |
Predation on moose calves by European brown bears. |
title_short |
Predation on moose calves by European brown bears. |
title_full |
Predation on moose calves by European brown bears. |
title_fullStr |
Predation on moose calves by European brown bears. |
title_full_unstemmed |
Predation on moose calves by European brown bears. |
title_sort |
predation on moose calves by european brown bears. |
publishDate |
2007 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1079.1610 http://bearproject.info/old/uploads/publications/2007%20Swenson%20et%20al%20moose%20JWM.pdf |
genre |
Alces alces Ursus arctos |
genre_facet |
Alces alces Ursus arctos |
op_source |
http://bearproject.info/old/uploads/publications/2007%20Swenson%20et%20al%20moose%20JWM.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1079.1610 http://bearproject.info/old/uploads/publications/2007%20Swenson%20et%20al%20moose%20JWM.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766255795813482496 |