Predation or scavenging? Prey body condition influences decision-making in a facultative predator, the wolverine. Photo gallery
What determines whether a predator scavenges or kills its own prey? Using data on wolverines ( Gulo gulo ) in Scandinavia, we studied variation in diet and feeding strategies along a gradient of environmental productivity, seasonality, density, and body mass of their main prey, semidomestic reindeer...
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ftunivmob:oai:nmbu.brage.unit.no:11250/2461654 2023-05-15T16:32:18+02:00 Predation or scavenging? Prey body condition influences decision-making in a facultative predator, the wolverine. Photo gallery Mattisson, Jenny Rauset, Geir Rune Odden, John Andrén, Henrik Linnell, John Durrus Persson, Jens 2017-01-09T13:16:03Z application/pdf http://hdl.handle.net/11250/2461654 eng eng Norges forskningsråd: 212919 The Bulletin of the Ecological Society of America. 2017, 98 (1), 40-46. urn:issn:2327-6096 http://hdl.handle.net/11250/2461654 cristin:1423380 Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no CC-BY-NC-ND 40-46 98 The Bulletin of the Ecological Society of America 1 Journal article Peer reviewed 2017 ftunivmob 2021-09-23T20:16:42Z What determines whether a predator scavenges or kills its own prey? Using data on wolverines ( Gulo gulo ) in Scandinavia, we studied variation in diet and feeding strategies along a gradient of environmental productivity, seasonality, density, and body mass of their main prey, semidomestic reindeer ( Rangifer tarandus ). Our results suggest that wolverine feeding strategies are flexible and influenced by seasonally dependent responses to prey body condition in combination with carrion supply. Predation was more pronounced in summer, when vulnerable reindeer calves are abundant, and individual kill rates were negatively related to local reindeer body mass. In winter, the probability of scavenging increased with decreasing reindeer body mass, likely as a response to increased carrion supply. Article in Journal/Newspaper Gulo gulo Rangifer tarandus Open archive Norwegian University of Life Sciences: Brage NMBU |
institution |
Open Polar |
collection |
Open archive Norwegian University of Life Sciences: Brage NMBU |
op_collection_id |
ftunivmob |
language |
English |
description |
What determines whether a predator scavenges or kills its own prey? Using data on wolverines ( Gulo gulo ) in Scandinavia, we studied variation in diet and feeding strategies along a gradient of environmental productivity, seasonality, density, and body mass of their main prey, semidomestic reindeer ( Rangifer tarandus ). Our results suggest that wolverine feeding strategies are flexible and influenced by seasonally dependent responses to prey body condition in combination with carrion supply. Predation was more pronounced in summer, when vulnerable reindeer calves are abundant, and individual kill rates were negatively related to local reindeer body mass. In winter, the probability of scavenging increased with decreasing reindeer body mass, likely as a response to increased carrion supply. |
format |
Article in Journal/Newspaper |
author |
Mattisson, Jenny Rauset, Geir Rune Odden, John Andrén, Henrik Linnell, John Durrus Persson, Jens |
spellingShingle |
Mattisson, Jenny Rauset, Geir Rune Odden, John Andrén, Henrik Linnell, John Durrus Persson, Jens Predation or scavenging? Prey body condition influences decision-making in a facultative predator, the wolverine. Photo gallery |
author_facet |
Mattisson, Jenny Rauset, Geir Rune Odden, John Andrén, Henrik Linnell, John Durrus Persson, Jens |
author_sort |
Mattisson, Jenny |
title |
Predation or scavenging? Prey body condition influences decision-making in a facultative predator, the wolverine. Photo gallery |
title_short |
Predation or scavenging? Prey body condition influences decision-making in a facultative predator, the wolverine. Photo gallery |
title_full |
Predation or scavenging? Prey body condition influences decision-making in a facultative predator, the wolverine. Photo gallery |
title_fullStr |
Predation or scavenging? Prey body condition influences decision-making in a facultative predator, the wolverine. Photo gallery |
title_full_unstemmed |
Predation or scavenging? Prey body condition influences decision-making in a facultative predator, the wolverine. Photo gallery |
title_sort |
predation or scavenging? prey body condition influences decision-making in a facultative predator, the wolverine. photo gallery |
publishDate |
2017 |
url |
http://hdl.handle.net/11250/2461654 |
genre |
Gulo gulo Rangifer tarandus |
genre_facet |
Gulo gulo Rangifer tarandus |
op_source |
40-46 98 The Bulletin of the Ecological Society of America 1 |
op_relation |
Norges forskningsråd: 212919 The Bulletin of the Ecological Society of America. 2017, 98 (1), 40-46. urn:issn:2327-6096 http://hdl.handle.net/11250/2461654 cristin:1423380 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766022056114126848 |