Movements and site fidelity of killer whales ( Orcinus orca ) relative to seasonal and long-term shifts in herring ( Clupea harengus ) distribution
Predators specialising on migratory prey that frequently change migration route face the challenge of finding prey with an unpredictable distribution. Here, we used photo-identification data to investigate whether killer whales observed in herring overwintering and spawning grounds off Iceland follo...
Published in: | Marine Biology |
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Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2017
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/movements-and-site-fidelity-of-killer-whales-orcinus-orca-relative-to-seasonal-and-longterm-shifts-in-herring-clupea-harengus-distribution(67e9709b-753a-42c6-ba38-043653d00d52).html https://doi.org/10.1007/s00227-017-3187-9 https://research-repository.st-andrews.ac.uk/bitstream/10023/15081/1/Filipa_2017_Movements_and_site_MarineBiol_AAM.pdf |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/67e9709b-753a-42c6-ba38-043653d00d52 2023-05-15T16:51:08+02:00 Movements and site fidelity of killer whales ( Orcinus orca ) relative to seasonal and long-term shifts in herring ( Clupea harengus ) distribution Samarra, Filipa I. P. Tavares, S. B. Béesau, J. Deecke, V. B. Fennell, A. Miller, P. J. O. Pétursson, H. Sigurjónsson, J. Víkingsson, G. A. 2017-08-01 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/movements-and-site-fidelity-of-killer-whales-orcinus-orca-relative-to-seasonal-and-longterm-shifts-in-herring-clupea-harengus-distribution(67e9709b-753a-42c6-ba38-043653d00d52).html https://doi.org/10.1007/s00227-017-3187-9 https://research-repository.st-andrews.ac.uk/bitstream/10023/15081/1/Filipa_2017_Movements_and_site_MarineBiol_AAM.pdf eng eng info:eu-repo/semantics/openAccess Samarra , F I P , Tavares , S B , Béesau , J , Deecke , V B , Fennell , A , Miller , P J O , Pétursson , H , Sigurjónsson , J & Víkingsson , G A 2017 , ' Movements and site fidelity of killer whales ( Orcinus orca ) relative to seasonal and long-term shifts in herring ( Clupea harengus ) distribution ' , Marine Biology , vol. 164 , 159 . https://doi.org/10.1007/s00227-017-3187-9 Movements Distribution shifts Photo-identification Predator-prey relationship Prey specialisation article 2017 ftunstandrewcris https://doi.org/10.1007/s00227-017-3187-9 2022-07-21T07:00:46Z Predators specialising on migratory prey that frequently change migration route face the challenge of finding prey with an unpredictable distribution. Here, we used photo-identification data to investigate whether killer whales observed in herring overwintering and spawning grounds off Iceland follow herring year-round, as previously proposed, and have the ability to adapt to long-term changes in herring distribution. Of 327 identified whales seen more than once, 45% were seen in both grounds, and were thus presumed herring-specialists, likely following herring year-round, while others were only seen on one of the grounds, possibly following herring to unsampled grounds or moving to other locations and exploiting different prey. High seasonal site fidelity to herring grounds, long-term site fidelity to herring spawning grounds, and matches of individual whales between past and recently occupied herring overwintering grounds showed an ability to adapt to long-term changes in prey distribution as well as diversity of movement patterns which are maintained over time, likely as socially-learnt traditions. Such population structuring shows that the movement patterns and foraging ecology of herring-eating killer whales are more complex than previously assumed and must be taken into account in future population assessments. Identifying the factors driving these differences in movements and resource use will be relevant towards our understanding of how prey predictability may drive specialization in this and other top predator species. Article in Journal/Newspaper Iceland Orca Orcinus orca University of St Andrews: Research Portal Marine Biology 164 8 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Movements Distribution shifts Photo-identification Predator-prey relationship Prey specialisation |
spellingShingle |
Movements Distribution shifts Photo-identification Predator-prey relationship Prey specialisation Samarra, Filipa I. P. Tavares, S. B. Béesau, J. Deecke, V. B. Fennell, A. Miller, P. J. O. Pétursson, H. Sigurjónsson, J. Víkingsson, G. A. Movements and site fidelity of killer whales ( Orcinus orca ) relative to seasonal and long-term shifts in herring ( Clupea harengus ) distribution |
topic_facet |
Movements Distribution shifts Photo-identification Predator-prey relationship Prey specialisation |
description |
Predators specialising on migratory prey that frequently change migration route face the challenge of finding prey with an unpredictable distribution. Here, we used photo-identification data to investigate whether killer whales observed in herring overwintering and spawning grounds off Iceland follow herring year-round, as previously proposed, and have the ability to adapt to long-term changes in herring distribution. Of 327 identified whales seen more than once, 45% were seen in both grounds, and were thus presumed herring-specialists, likely following herring year-round, while others were only seen on one of the grounds, possibly following herring to unsampled grounds or moving to other locations and exploiting different prey. High seasonal site fidelity to herring grounds, long-term site fidelity to herring spawning grounds, and matches of individual whales between past and recently occupied herring overwintering grounds showed an ability to adapt to long-term changes in prey distribution as well as diversity of movement patterns which are maintained over time, likely as socially-learnt traditions. Such population structuring shows that the movement patterns and foraging ecology of herring-eating killer whales are more complex than previously assumed and must be taken into account in future population assessments. Identifying the factors driving these differences in movements and resource use will be relevant towards our understanding of how prey predictability may drive specialization in this and other top predator species. |
format |
Article in Journal/Newspaper |
author |
Samarra, Filipa I. P. Tavares, S. B. Béesau, J. Deecke, V. B. Fennell, A. Miller, P. J. O. Pétursson, H. Sigurjónsson, J. Víkingsson, G. A. |
author_facet |
Samarra, Filipa I. P. Tavares, S. B. Béesau, J. Deecke, V. B. Fennell, A. Miller, P. J. O. Pétursson, H. Sigurjónsson, J. Víkingsson, G. A. |
author_sort |
Samarra, Filipa I. P. |
title |
Movements and site fidelity of killer whales ( Orcinus orca ) relative to seasonal and long-term shifts in herring ( Clupea harengus ) distribution |
title_short |
Movements and site fidelity of killer whales ( Orcinus orca ) relative to seasonal and long-term shifts in herring ( Clupea harengus ) distribution |
title_full |
Movements and site fidelity of killer whales ( Orcinus orca ) relative to seasonal and long-term shifts in herring ( Clupea harengus ) distribution |
title_fullStr |
Movements and site fidelity of killer whales ( Orcinus orca ) relative to seasonal and long-term shifts in herring ( Clupea harengus ) distribution |
title_full_unstemmed |
Movements and site fidelity of killer whales ( Orcinus orca ) relative to seasonal and long-term shifts in herring ( Clupea harengus ) distribution |
title_sort |
movements and site fidelity of killer whales ( orcinus orca ) relative to seasonal and long-term shifts in herring ( clupea harengus ) distribution |
publishDate |
2017 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/movements-and-site-fidelity-of-killer-whales-orcinus-orca-relative-to-seasonal-and-longterm-shifts-in-herring-clupea-harengus-distribution(67e9709b-753a-42c6-ba38-043653d00d52).html https://doi.org/10.1007/s00227-017-3187-9 https://research-repository.st-andrews.ac.uk/bitstream/10023/15081/1/Filipa_2017_Movements_and_site_MarineBiol_AAM.pdf |
genre |
Iceland Orca Orcinus orca |
genre_facet |
Iceland Orca Orcinus orca |
op_source |
Samarra , F I P , Tavares , S B , Béesau , J , Deecke , V B , Fennell , A , Miller , P J O , Pétursson , H , Sigurjónsson , J & Víkingsson , G A 2017 , ' Movements and site fidelity of killer whales ( Orcinus orca ) relative to seasonal and long-term shifts in herring ( Clupea harengus ) distribution ' , Marine Biology , vol. 164 , 159 . https://doi.org/10.1007/s00227-017-3187-9 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00227-017-3187-9 |
container_title |
Marine Biology |
container_volume |
164 |
container_issue |
8 |
_version_ |
1766041248446021632 |