Data from: The nightscape of the Arctic winter shapes the diving behavior of a pelagic predator
Predator-prey interactions in marine ecosystems are dynamically structured by light, which is exemplified by diel vertical migrations of low-trophic level organisms. At high latitudes, the long winter nights provide foraging opportunities for marine predators targeting vertically migrating prey clos...
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ftzenodo:oai:zenodo.org:8180672 2024-09-15T18:09:02+00:00 Data from: The nightscape of the Arctic winter shapes the diving behavior of a pelagic predator Chambault, Philippine Teilmann, Jonas Tervo, Outi Sinding, Mikkel Heide-Jørgensen, Mads Peter 2023-07-24 https://doi.org/10.5061/dryad.zpc866tdh unknown Zenodo https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.zpc866tdh oai:zenodo.org:8180672 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cetacean Foraging Diving behavior Phocoena phocoena daylength Greenland info:eu-repo/semantics/other 2023 ftzenodo https://doi.org/10.5061/dryad.zpc866tdh 2024-07-25T14:43:00Z Predator-prey interactions in marine ecosystems are dynamically structured by light, which is exemplified by diel vertical migrations of low-trophic level organisms. At high latitudes, the long winter nights provide foraging opportunities for marine predators targeting vertically migrating prey closer to the surface at night while minimizing energy expenditure, but there is limited documentation of such diel patterns under extreme light regimes. To address this knowledge gap, we recorded the diving behavior of 17 harbour porpoises just south of the Arctic circle in West Greenland, from summer to winter. Unlike classical diel vertical migration, the porpoises dove three times deeper at night and the frequency of deep dives (>100 m) increased tenfold as they entered the darkest months. The daily mean depth was negatively correlated with daylength, confirming this reverse diel migration and suggesting an increased activity—presumably to target prey at greater depths—when approaching the polar night. Our findings illustrate a light-mediated strategy in which harbour porpoises would maximize energy gain during long periods of darkness while minimizing energy expenditure by accessing vertically migrating prey, which are otherwise inaccessible in deep waters. Extreme light regimes observed at high latitudes are therefore critical in structuring pelagic communities and food webs. Funding provided by: HORIZON EUROPE Marie Sklodowska-Curie Actions Crossref Funder Registry ID: http://dx.doi.org/10.13039/100018694 Award Number: 48068 Funding provided by: Greenland Ministry of Education, Church, Culture & Gender Equality* Crossref Funder Registry ID: Award Number: Funding provided by: Danish Cooperation for the Environment in the Arctic* Crossref Funder Registry ID: Award Number: Funding provided by: Greenland Institute of Natural Resources Crossref Funder Registry ID: http://dx.doi.org/10.13039/100008075 Award Number: Other/Unknown Material Greenland Greenland Institute of Natural Resources Phocoena phocoena polar night Zenodo |
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cetacean Foraging Diving behavior Phocoena phocoena daylength Greenland |
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cetacean Foraging Diving behavior Phocoena phocoena daylength Greenland Chambault, Philippine Teilmann, Jonas Tervo, Outi Sinding, Mikkel Heide-Jørgensen, Mads Peter Data from: The nightscape of the Arctic winter shapes the diving behavior of a pelagic predator |
topic_facet |
cetacean Foraging Diving behavior Phocoena phocoena daylength Greenland |
description |
Predator-prey interactions in marine ecosystems are dynamically structured by light, which is exemplified by diel vertical migrations of low-trophic level organisms. At high latitudes, the long winter nights provide foraging opportunities for marine predators targeting vertically migrating prey closer to the surface at night while minimizing energy expenditure, but there is limited documentation of such diel patterns under extreme light regimes. To address this knowledge gap, we recorded the diving behavior of 17 harbour porpoises just south of the Arctic circle in West Greenland, from summer to winter. Unlike classical diel vertical migration, the porpoises dove three times deeper at night and the frequency of deep dives (>100 m) increased tenfold as they entered the darkest months. The daily mean depth was negatively correlated with daylength, confirming this reverse diel migration and suggesting an increased activity—presumably to target prey at greater depths—when approaching the polar night. Our findings illustrate a light-mediated strategy in which harbour porpoises would maximize energy gain during long periods of darkness while minimizing energy expenditure by accessing vertically migrating prey, which are otherwise inaccessible in deep waters. Extreme light regimes observed at high latitudes are therefore critical in structuring pelagic communities and food webs. Funding provided by: HORIZON EUROPE Marie Sklodowska-Curie Actions Crossref Funder Registry ID: http://dx.doi.org/10.13039/100018694 Award Number: 48068 Funding provided by: Greenland Ministry of Education, Church, Culture & Gender Equality* Crossref Funder Registry ID: Award Number: Funding provided by: Danish Cooperation for the Environment in the Arctic* Crossref Funder Registry ID: Award Number: Funding provided by: Greenland Institute of Natural Resources Crossref Funder Registry ID: http://dx.doi.org/10.13039/100008075 Award Number: |
format |
Other/Unknown Material |
author |
Chambault, Philippine Teilmann, Jonas Tervo, Outi Sinding, Mikkel Heide-Jørgensen, Mads Peter |
author_facet |
Chambault, Philippine Teilmann, Jonas Tervo, Outi Sinding, Mikkel Heide-Jørgensen, Mads Peter |
author_sort |
Chambault, Philippine |
title |
Data from: The nightscape of the Arctic winter shapes the diving behavior of a pelagic predator |
title_short |
Data from: The nightscape of the Arctic winter shapes the diving behavior of a pelagic predator |
title_full |
Data from: The nightscape of the Arctic winter shapes the diving behavior of a pelagic predator |
title_fullStr |
Data from: The nightscape of the Arctic winter shapes the diving behavior of a pelagic predator |
title_full_unstemmed |
Data from: The nightscape of the Arctic winter shapes the diving behavior of a pelagic predator |
title_sort |
data from: the nightscape of the arctic winter shapes the diving behavior of a pelagic predator |
publisher |
Zenodo |
publishDate |
2023 |
url |
https://doi.org/10.5061/dryad.zpc866tdh |
genre |
Greenland Greenland Institute of Natural Resources Phocoena phocoena polar night |
genre_facet |
Greenland Greenland Institute of Natural Resources Phocoena phocoena polar night |
op_relation |
https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.zpc866tdh oai:zenodo.org:8180672 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.zpc866tdh |
_version_ |
1810446427337261056 |