Environmental drivers of population-level variation in the migratory and diving ontogeny of an Arctic top predator
The development of migratory strategies that enable juveniles to survive to sexual maturity is critical for species that exploit seasonal niches. For animals that forage via breath-hold diving, this requires a combination of both physiological and foraging skill development. Here, we assess how migr...
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Online Access: | https://hdl.handle.net/11250/2999731 https://doi.org/10.1098/rsos.211042 |
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ftimr:oai:imr.brage.unit.no:11250/2999731 2023-05-15T14:52:31+02:00 Environmental drivers of population-level variation in the migratory and diving ontogeny of an Arctic top predator Grecian, W. James Stenson, Garry B. Biuw, Martin Boehme, Lars Folkow, Lars Goulet, Pierre J. Jonsen, Ian D. Malde, Aleksander Nordøy, Erling Sverre Rosing-Asvid, Aqqalu Smout, Sophie 2022 application/pdf https://hdl.handle.net/11250/2999731 https://doi.org/10.1098/rsos.211042 eng eng Royal Society Open Science. 2022, 9 (3), . urn:issn:2054-5703 https://hdl.handle.net/11250/2999731 https://doi.org/10.1098/rsos.211042 cristin:2017185 13 9 Royal Society Open Science 3 Peer reviewed Journal article 2022 ftimr https://doi.org/10.1098/rsos.211042 2022-06-22T22:40:31Z The development of migratory strategies that enable juveniles to survive to sexual maturity is critical for species that exploit seasonal niches. For animals that forage via breath-hold diving, this requires a combination of both physiological and foraging skill development. Here, we assess how migratory and dive behaviour develop over the first year of life for a migratory Arctic top predator, the harp seal Pagophilus groenlandicus, tracked using animal-borne satellite relay data loggers. We reveal similarities in migratory movements and differences in diving behaviour between 38 juveniles tracked from the Greenland Sea and Northwest Atlantic breeding populations. In both regions, periods of resident and transitory behaviour during migration were associated with proxies for food availability: sea ice concentration and bathymetric depth. However, while ontogenetic development of dive behaviour was similar for both populations of juveniles over the first 25 days, after this time Greenland Sea animals performed shorter and shallower dives and were more closely associated with sea ice than Northwest Atlantic animals. Together, these results highlight the role of both intrinsic and extrinsic factors in shaping early life behaviour. Variation in the environmental conditions experienced during early life may shape how different populations respond to the rapid changes occurring in the Arctic ocean ecosystem. publishedVersion Article in Journal/Newspaper Arctic Arctic Ocean Greenland Greenland Sea Harp Seal Northwest Atlantic Pagophilus groenlandicus Sea ice Institute for Marine Research: Brage IMR Arctic Arctic Ocean Greenland Royal Society Open Science 9 3 |
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Open Polar |
collection |
Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
The development of migratory strategies that enable juveniles to survive to sexual maturity is critical for species that exploit seasonal niches. For animals that forage via breath-hold diving, this requires a combination of both physiological and foraging skill development. Here, we assess how migratory and dive behaviour develop over the first year of life for a migratory Arctic top predator, the harp seal Pagophilus groenlandicus, tracked using animal-borne satellite relay data loggers. We reveal similarities in migratory movements and differences in diving behaviour between 38 juveniles tracked from the Greenland Sea and Northwest Atlantic breeding populations. In both regions, periods of resident and transitory behaviour during migration were associated with proxies for food availability: sea ice concentration and bathymetric depth. However, while ontogenetic development of dive behaviour was similar for both populations of juveniles over the first 25 days, after this time Greenland Sea animals performed shorter and shallower dives and were more closely associated with sea ice than Northwest Atlantic animals. Together, these results highlight the role of both intrinsic and extrinsic factors in shaping early life behaviour. Variation in the environmental conditions experienced during early life may shape how different populations respond to the rapid changes occurring in the Arctic ocean ecosystem. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Grecian, W. James Stenson, Garry B. Biuw, Martin Boehme, Lars Folkow, Lars Goulet, Pierre J. Jonsen, Ian D. Malde, Aleksander Nordøy, Erling Sverre Rosing-Asvid, Aqqalu Smout, Sophie |
spellingShingle |
Grecian, W. James Stenson, Garry B. Biuw, Martin Boehme, Lars Folkow, Lars Goulet, Pierre J. Jonsen, Ian D. Malde, Aleksander Nordøy, Erling Sverre Rosing-Asvid, Aqqalu Smout, Sophie Environmental drivers of population-level variation in the migratory and diving ontogeny of an Arctic top predator |
author_facet |
Grecian, W. James Stenson, Garry B. Biuw, Martin Boehme, Lars Folkow, Lars Goulet, Pierre J. Jonsen, Ian D. Malde, Aleksander Nordøy, Erling Sverre Rosing-Asvid, Aqqalu Smout, Sophie |
author_sort |
Grecian, W. James |
title |
Environmental drivers of population-level variation in the migratory and diving ontogeny of an Arctic top predator |
title_short |
Environmental drivers of population-level variation in the migratory and diving ontogeny of an Arctic top predator |
title_full |
Environmental drivers of population-level variation in the migratory and diving ontogeny of an Arctic top predator |
title_fullStr |
Environmental drivers of population-level variation in the migratory and diving ontogeny of an Arctic top predator |
title_full_unstemmed |
Environmental drivers of population-level variation in the migratory and diving ontogeny of an Arctic top predator |
title_sort |
environmental drivers of population-level variation in the migratory and diving ontogeny of an arctic top predator |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/2999731 https://doi.org/10.1098/rsos.211042 |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Ocean Greenland Greenland Sea Harp Seal Northwest Atlantic Pagophilus groenlandicus Sea ice |
genre_facet |
Arctic Arctic Ocean Greenland Greenland Sea Harp Seal Northwest Atlantic Pagophilus groenlandicus Sea ice |
op_source |
13 9 Royal Society Open Science 3 |
op_relation |
Royal Society Open Science. 2022, 9 (3), . urn:issn:2054-5703 https://hdl.handle.net/11250/2999731 https://doi.org/10.1098/rsos.211042 cristin:2017185 |
op_doi |
https://doi.org/10.1098/rsos.211042 |
container_title |
Royal Society Open Science |
container_volume |
9 |
container_issue |
3 |
_version_ |
1766323757662601216 |