Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates
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 h...
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ftdoajarticles:oai:doaj.org/article:a965f753703c47a983e7182b37772f7a 2023-05-15T13:12:56+02:00 Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates Kate Twynham Andrés Ordiz Ole-Gunnar Støen Geir-Rune Rauset Jonas Kindberg Peter Segerström Jens Frank Antonio Uzal 2021-12-01T00:00:00Z https://doi.org/10.3390/d13120678 https://doaj.org/article/a965f753703c47a983e7182b37772f7a EN eng MDPI AG https://www.mdpi.com/1424-2818/13/12/678 https://doaj.org/toc/1424-2818 doi:10.3390/d13120678 1424-2818 https://doaj.org/article/a965f753703c47a983e7182b37772f7a Diversity, Vol 13, Iss 678, p 678 (2021) Ursus arctos Rangifer tarandus Alces alces predation rates habitat selection individual heterogeneity Biology (General) QH301-705.5 article 2021 ftdoajarticles https://doi.org/10.3390/d13120678 2022-12-30T23:54:08Z 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. Article in Journal/Newspaper Alces alces Northern Sweden Rangifer tarandus Ursus arctos Directory of Open Access Journals: DOAJ Articles Diversity 13 12 678 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ursus arctos Rangifer tarandus Alces alces predation rates habitat selection individual heterogeneity Biology (General) QH301-705.5 |
spellingShingle |
Ursus arctos Rangifer tarandus Alces alces predation rates habitat selection individual heterogeneity Biology (General) QH301-705.5 Kate Twynham Andrés Ordiz Ole-Gunnar Støen Geir-Rune Rauset Jonas Kindberg Peter Segerström Jens Frank Antonio Uzal Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates |
topic_facet |
Ursus arctos Rangifer tarandus Alces alces predation rates habitat selection individual heterogeneity Biology (General) QH301-705.5 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Kate Twynham Andrés Ordiz Ole-Gunnar Støen Geir-Rune Rauset Jonas Kindberg Peter Segerström Jens Frank Antonio Uzal |
author_facet |
Kate Twynham Andrés Ordiz Ole-Gunnar Støen Geir-Rune Rauset Jonas Kindberg Peter Segerström Jens Frank Antonio Uzal |
author_sort |
Kate Twynham |
title |
Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates |
title_short |
Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates |
title_full |
Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates |
title_fullStr |
Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates |
title_full_unstemmed |
Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates |
title_sort |
habitat selection by brown bears with varying levels of predation rates on ungulate neonates |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/d13120678 https://doaj.org/article/a965f753703c47a983e7182b37772f7a |
genre |
Alces alces Northern Sweden Rangifer tarandus Ursus arctos |
genre_facet |
Alces alces Northern Sweden Rangifer tarandus Ursus arctos |
op_source |
Diversity, Vol 13, Iss 678, p 678 (2021) |
op_relation |
https://www.mdpi.com/1424-2818/13/12/678 https://doaj.org/toc/1424-2818 doi:10.3390/d13120678 1424-2818 https://doaj.org/article/a965f753703c47a983e7182b37772f7a |
op_doi |
https://doi.org/10.3390/d13120678 |
container_title |
Diversity |
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13 |
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678 |
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