Time-dependent memory and individual variation in Arctic brown bears (Ursus arctos)
Abstract Background Animal movement modelling provides unique insight about how animals perceive their landscape and how this perception may influence space use. When coupled with data describing an animal’s environment, ecologists can fit statistical models to location data to describe how spatial...
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ftdoajarticles:oai:doaj.org/article:949d0bea5e984c88bffb082b8c7304fb 2023-05-15T14:49:20+02:00 Time-dependent memory and individual variation in Arctic brown bears (Ursus arctos) Peter R. Thompson Mark A. Lewis Mark A. Edwards Andrew E. Derocher 2022-04-01T00:00:00Z https://doi.org/10.1186/s40462-022-00319-4 https://doaj.org/article/949d0bea5e984c88bffb082b8c7304fb EN eng BMC https://doi.org/10.1186/s40462-022-00319-4 https://doaj.org/toc/2051-3933 doi:10.1186/s40462-022-00319-4 2051-3933 https://doaj.org/article/949d0bea5e984c88bffb082b8c7304fb Movement Ecology, Vol 10, Iss 1, Pp 1-15 (2022) Spatial memory Brown bear Ursus arctos Animal movement Mackenzie River Delta Cognitive map Biology (General) QH301-705.5 article 2022 ftdoajarticles https://doi.org/10.1186/s40462-022-00319-4 2022-12-31T00:05:14Z Abstract Background Animal movement modelling provides unique insight about how animals perceive their landscape and how this perception may influence space use. When coupled with data describing an animal’s environment, ecologists can fit statistical models to location data to describe how spatial memory informs movement. Methods We performed such an analysis on a population of brown bears (Ursus arctos) in the Canadian Arctic using a model incorporating time-dependent spatial memory patterns. Brown bear populations in the Arctic lie on the periphery of the species’ range, and as a result endure harsh environmental conditions. In this kind of environment, effective use of memory to inform movement strategies could spell the difference between survival and mortality. Results The model we fit tests four alternate hypotheses (some incorporating memory; some not) against each other, and we found a high degree of individual variation in how brown bears used memory. We found that 71% (15 of 21) of the bears used complex, time-dependent spatial memory to inform their movement decisions. Conclusions These results, coupled with existing knowledge on individual variation in the population, highlight the diversity of foraging strategies for Arctic brown bears while also displaying the inference that can be drawn from this innovative movement model. Article in Journal/Newspaper Arctic brown bear Mackenzie river Ursus arctos Directory of Open Access Journals: DOAJ Articles Arctic Mackenzie River Movement Ecology 10 1 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Spatial memory Brown bear Ursus arctos Animal movement Mackenzie River Delta Cognitive map Biology (General) QH301-705.5 |
spellingShingle |
Spatial memory Brown bear Ursus arctos Animal movement Mackenzie River Delta Cognitive map Biology (General) QH301-705.5 Peter R. Thompson Mark A. Lewis Mark A. Edwards Andrew E. Derocher Time-dependent memory and individual variation in Arctic brown bears (Ursus arctos) |
topic_facet |
Spatial memory Brown bear Ursus arctos Animal movement Mackenzie River Delta Cognitive map Biology (General) QH301-705.5 |
description |
Abstract Background Animal movement modelling provides unique insight about how animals perceive their landscape and how this perception may influence space use. When coupled with data describing an animal’s environment, ecologists can fit statistical models to location data to describe how spatial memory informs movement. Methods We performed such an analysis on a population of brown bears (Ursus arctos) in the Canadian Arctic using a model incorporating time-dependent spatial memory patterns. Brown bear populations in the Arctic lie on the periphery of the species’ range, and as a result endure harsh environmental conditions. In this kind of environment, effective use of memory to inform movement strategies could spell the difference between survival and mortality. Results The model we fit tests four alternate hypotheses (some incorporating memory; some not) against each other, and we found a high degree of individual variation in how brown bears used memory. We found that 71% (15 of 21) of the bears used complex, time-dependent spatial memory to inform their movement decisions. Conclusions These results, coupled with existing knowledge on individual variation in the population, highlight the diversity of foraging strategies for Arctic brown bears while also displaying the inference that can be drawn from this innovative movement model. |
format |
Article in Journal/Newspaper |
author |
Peter R. Thompson Mark A. Lewis Mark A. Edwards Andrew E. Derocher |
author_facet |
Peter R. Thompson Mark A. Lewis Mark A. Edwards Andrew E. Derocher |
author_sort |
Peter R. Thompson |
title |
Time-dependent memory and individual variation in Arctic brown bears (Ursus arctos) |
title_short |
Time-dependent memory and individual variation in Arctic brown bears (Ursus arctos) |
title_full |
Time-dependent memory and individual variation in Arctic brown bears (Ursus arctos) |
title_fullStr |
Time-dependent memory and individual variation in Arctic brown bears (Ursus arctos) |
title_full_unstemmed |
Time-dependent memory and individual variation in Arctic brown bears (Ursus arctos) |
title_sort |
time-dependent memory and individual variation in arctic brown bears (ursus arctos) |
publisher |
BMC |
publishDate |
2022 |
url |
https://doi.org/10.1186/s40462-022-00319-4 https://doaj.org/article/949d0bea5e984c88bffb082b8c7304fb |
geographic |
Arctic Mackenzie River |
geographic_facet |
Arctic Mackenzie River |
genre |
Arctic brown bear Mackenzie river Ursus arctos |
genre_facet |
Arctic brown bear Mackenzie river Ursus arctos |
op_source |
Movement Ecology, Vol 10, Iss 1, Pp 1-15 (2022) |
op_relation |
https://doi.org/10.1186/s40462-022-00319-4 https://doaj.org/toc/2051-3933 doi:10.1186/s40462-022-00319-4 2051-3933 https://doaj.org/article/949d0bea5e984c88bffb082b8c7304fb |
op_doi |
https://doi.org/10.1186/s40462-022-00319-4 |
container_title |
Movement Ecology |
container_volume |
10 |
container_issue |
1 |
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1766320399558115328 |