An Arctic predator–prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals
Source at https://doi.org/10.1111/1365-2656.12685 . Accepted manuscript version, licensed CC BY-NC-ND 4.0. 1. Climate change is impacting different species at different rates, leading to alterations in biological interactions with ramifications for wider ecosystem functioning. Understanding these al...
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Language: | English |
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Online Access: | https://hdl.handle.net/10037/13339 https://doi.org/10.1111/1365-2656.12685 |
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ftunivtroemsoe:oai:munin.uit.no:10037/13339 2023-05-15T14:26:46+02:00 An Arctic predator–prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals Hamilton, Charmain Danielle Kovacs, Kit Ims, Rolf Anker Aars, Jon Lydersen, Christian 2017-04-17 https://hdl.handle.net/10037/13339 https://doi.org/10.1111/1365-2656.12685 eng eng Elsevier Journal of Animal Ecology Hamilton, C.D., Kovacs, K., Ims, R.A., Aars, J. & Lydersen, C. (2017). An Arctic predator–prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals. Journal of Animal Ecology, 86(5), 1054-1064. https://doi.org/10.1111/1365-2656.12685 FRIDAID 1474551 doi:10.1111/1365-2656.12685 0021-8790 1365-2656 https://hdl.handle.net/10037/13339 openAccess VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 prey‐shifting Pusa hispida sea‐ice declines spatial overlap Svalbard Ursus maritimus Journal article Tidsskriftartikkel Peer reviewed 2017 ftunivtroemsoe https://doi.org/10.1111/1365-2656.12685 2021-06-25T17:55:50Z Source at https://doi.org/10.1111/1365-2656.12685 . Accepted manuscript version, licensed CC BY-NC-ND 4.0. 1. Climate change is impacting different species at different rates, leading to alterations in biological interactions with ramifications for wider ecosystem functioning. Understanding these alterations can help improve predictive capacity and inform management efforts designed to mitigate against negative impacts. 2. We investigated how the movement and space use patterns of polar bears (Ursus maritimus) in coastal areas in Svalbard, Norway, have been altered by a sudden decline in sea ice that occurred in 2006. We also investigated whether the spatial overlap between polar bears and their traditionally most important prey, ringed seals (Pusa hispida), has been affected by the sea‐ice decline, as polar bears are dependent on a sea‐ice platform for hunting seals. 3. We attached biotelemetry devices to ringed seals (n = 60, both sexes) and polar bears (n = 67, all females) before (2002–2004) and after (2010–2013) a sudden decline in sea ice in Svalbard. We used linear mixed‐effects models to evaluate the association of these species to environmental features and an approach based on Time Spent in Area to investigate changes in spatial overlap between the two species. 4. Following the sea‐ice reduction, polar bears spent the same amount of time close to tidal glacier fronts in the spring but less time in these areas during the summer and autumn. However, ringed seals did not alter their association with glacier fronts during summer, leading to a major decrease in spatial overlap values between these species in Svalbard's coastal areas. Polar bears now move greater distances daily and spend more time close to ground‐nesting bird colonies, where bear predation can have substantial local effects. 5. Our results indicate that sea‐ice declines have impacted the degree of spatial overlap and hence the strength of the predator–prey relationship between polar bears and ringed seals, with consequences for the wider Arctic marine and terrestrial ecosystems. Shifts in ecological interactions are likely to become more widespread in many ecosystems as both predators and prey respond to changing environmental conditions induced by global warming, highlighting the importance of multi‐species studies. Article in Journal/Newspaper Arctic Arctic Climate change glacier glacier Global warming Pusa hispida Sea ice Svalbard Ursus maritimus University of Tromsø: Munin Open Research Archive Arctic Norway Svalbard Journal of Animal Ecology 86 5 1054 1064 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 prey‐shifting Pusa hispida sea‐ice declines spatial overlap Svalbard Ursus maritimus |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 prey‐shifting Pusa hispida sea‐ice declines spatial overlap Svalbard Ursus maritimus Hamilton, Charmain Danielle Kovacs, Kit Ims, Rolf Anker Aars, Jon Lydersen, Christian An Arctic predator–prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 prey‐shifting Pusa hispida sea‐ice declines spatial overlap Svalbard Ursus maritimus |
description |
Source at https://doi.org/10.1111/1365-2656.12685 . Accepted manuscript version, licensed CC BY-NC-ND 4.0. 1. Climate change is impacting different species at different rates, leading to alterations in biological interactions with ramifications for wider ecosystem functioning. Understanding these alterations can help improve predictive capacity and inform management efforts designed to mitigate against negative impacts. 2. We investigated how the movement and space use patterns of polar bears (Ursus maritimus) in coastal areas in Svalbard, Norway, have been altered by a sudden decline in sea ice that occurred in 2006. We also investigated whether the spatial overlap between polar bears and their traditionally most important prey, ringed seals (Pusa hispida), has been affected by the sea‐ice decline, as polar bears are dependent on a sea‐ice platform for hunting seals. 3. We attached biotelemetry devices to ringed seals (n = 60, both sexes) and polar bears (n = 67, all females) before (2002–2004) and after (2010–2013) a sudden decline in sea ice in Svalbard. We used linear mixed‐effects models to evaluate the association of these species to environmental features and an approach based on Time Spent in Area to investigate changes in spatial overlap between the two species. 4. Following the sea‐ice reduction, polar bears spent the same amount of time close to tidal glacier fronts in the spring but less time in these areas during the summer and autumn. However, ringed seals did not alter their association with glacier fronts during summer, leading to a major decrease in spatial overlap values between these species in Svalbard's coastal areas. Polar bears now move greater distances daily and spend more time close to ground‐nesting bird colonies, where bear predation can have substantial local effects. 5. Our results indicate that sea‐ice declines have impacted the degree of spatial overlap and hence the strength of the predator–prey relationship between polar bears and ringed seals, with consequences for the wider Arctic marine and terrestrial ecosystems. Shifts in ecological interactions are likely to become more widespread in many ecosystems as both predators and prey respond to changing environmental conditions induced by global warming, highlighting the importance of multi‐species studies. |
format |
Article in Journal/Newspaper |
author |
Hamilton, Charmain Danielle Kovacs, Kit Ims, Rolf Anker Aars, Jon Lydersen, Christian |
author_facet |
Hamilton, Charmain Danielle Kovacs, Kit Ims, Rolf Anker Aars, Jon Lydersen, Christian |
author_sort |
Hamilton, Charmain Danielle |
title |
An Arctic predator–prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals |
title_short |
An Arctic predator–prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals |
title_full |
An Arctic predator–prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals |
title_fullStr |
An Arctic predator–prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals |
title_full_unstemmed |
An Arctic predator–prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals |
title_sort |
arctic predator–prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://hdl.handle.net/10037/13339 https://doi.org/10.1111/1365-2656.12685 |
geographic |
Arctic Norway Svalbard |
geographic_facet |
Arctic Norway Svalbard |
genre |
Arctic Arctic Climate change glacier glacier Global warming Pusa hispida Sea ice Svalbard Ursus maritimus |
genre_facet |
Arctic Arctic Climate change glacier glacier Global warming Pusa hispida Sea ice Svalbard Ursus maritimus |
op_relation |
Journal of Animal Ecology Hamilton, C.D., Kovacs, K., Ims, R.A., Aars, J. & Lydersen, C. (2017). An Arctic predator–prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals. Journal of Animal Ecology, 86(5), 1054-1064. https://doi.org/10.1111/1365-2656.12685 FRIDAID 1474551 doi:10.1111/1365-2656.12685 0021-8790 1365-2656 https://hdl.handle.net/10037/13339 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1111/1365-2656.12685 |
container_title |
Journal of Animal Ecology |
container_volume |
86 |
container_issue |
5 |
container_start_page |
1054 |
op_container_end_page |
1064 |
_version_ |
1766300187660124160 |