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Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates

Twynham, Kate and Ordiz, Andres and Stoen, Ole-Gunnar and Rauset, Geir-Rune and Kindberg, Jonas and Segerstrom, Peter and Frank, Jens and Uzal, Antonio (2021). Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates. Diversity. 13 :12 , 678
[Research article]

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Abstract

In northern Eurasia, large carnivores overlap with semi-domestic reindeer (Rangifer tarandus) and moose (Alces alces). In Scandinavia, previous studies have quantified brown bear (Ursus arctos) spring predation on neonates of reindeer (mostly in May) and moose (mostly in June). We explored if habitat selection by brown bears changed following resource pulses and whether these changes are more pronounced on those individuals characterised by higher predatory behaviour. Fifteen brown bears in northern Sweden (2010-2012) were fitted with GPS proximity collars, and 2585 female reindeers were collared with UHF transmitters. Clusters of bear positions were visited to investigate moose and reindeer predation. Bear kill rates and home ranges were calculated to examine bear movements and predatory behaviour. Bear habitat selection was modelled using resource selection functions over four periods (pre-calving, reindeer calving, moose calving, and post-calving). Coefficients of selection for areas closer to different land cover classes across periods were compared, examining the interactions between different degrees of predatory behaviour (i.e., high and low). Bear habitat selection differed throughout the periods and between low and high predatory bears. Differences among individuals' predatory behaviour are reflected in the selection of habitat types, providing empirical evidence that different levels of specialization in foraging behaviour helps to explain individual variation in bear habitat selection.

Authors/Creators:Twynham, Kate and Ordiz, Andres and Stoen, Ole-Gunnar and Rauset, Geir-Rune and Kindberg, Jonas and Segerstrom, Peter and Frank, Jens and Uzal, Antonio
Title:Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates
Series Name/Journal:Diversity
Year of publishing :2021
Volume:13
Number:12
Article number:678
Number of Pages:15
Publisher:MDPI
ISSN:1424-2818
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Behavioural Sciences Biology
Keywords:Ursus arctos, Rangifer tarandus, Alces alces, predation rates, habitat selection, individual heterogeneity
URN:NBN:urn:nbn:se:slu:epsilon-p-115780
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-115780
Additional ID:
Type of IDID
DOI10.3390/d13120678
Web of Science (WoS)000736640200001
ID Code:26830
Faculty:S - Faculty of Forest Sciences
NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(S) > Dept. of Wildlife, Fish and Environmental Studies
(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:26 Jan 2022 15:25
Metadata Last Modified:26 Jan 2022 15:31

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