King penguins adjust their fine-scale travelling and foraging behaviours to spatial and diel changes in feeding opportunities
International audience Abstract Central place foragers such as pelagic seabirds often travel large distances to reach profitable foraging areas. King penguins ( Aptenodytes patagonicus ) are well known for their large-scale foraging movements to the productive Antarctic Polar Front, though their fin...
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Online Access: | https://hal.science/hal-03988587 https://doi.org/10.1007/s00227-022-04170-4 |
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ftccsdartic:oai:HAL:hal-03988587v1 2024-02-27T08:33:40+00:00 King penguins adjust their fine-scale travelling and foraging behaviours to spatial and diel changes in feeding opportunities Watanabe, Hina Shiomi, Kozue Sato, Katsufumi Takahashi, Akinori Handrich, Yves Bost, Charles-André The Graduate University for Advanced Studies The University of Tokyo (UTokyo) FRIS - Frontier Research Institute for Interdisciplinary Sciences (FRIS) Tohoku University Sendai Atmosphere and Ocean Research Institute, University of Tokyo The Graduate University for Advanced Studies, japan (SOKENDAI) Université de Strasbourg (UNISTRA) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2023-03 https://hal.science/hal-03988587 https://doi.org/10.1007/s00227-022-04170-4 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-022-04170-4 hal-03988587 https://hal.science/hal-03988587 doi:10.1007/s00227-022-04170-4 WOS: 000922357200005 ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-03988587 Marine Biology, 2023, 170 (3), pp.29. ⟨10.1007/s00227-022-04170-4⟩ Seabirds Penguins Dive path Optimal foraging Movements Diel vertical migration Bio-logging [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2023 ftccsdartic https://doi.org/10.1007/s00227-022-04170-4 2024-01-28T00:55:30Z International audience Abstract Central place foragers such as pelagic seabirds often travel large distances to reach profitable foraging areas. King penguins ( Aptenodytes patagonicus ) are well known for their large-scale foraging movements to the productive Antarctic Polar Front, though their fine-scale travelling and foraging characteristics remain unclear. Here, we investigated the horizontal movements and foraging patterns of king penguins to understand their fine-scale movement decisions during distant foraging trips. We attached multi-channel data loggers that can record depth, speed, tri-axis acceleration, tri-axis magnetism, and environmental temperature of the penguins and obtained data ( n = 8 birds) on their horizontal movement rates from reconstructed dive paths and their feeding attempts estimated from rapid changes in swim speed. During transit toward main foraging areas, penguins increased the time spent on shallow travelling dives (< 50 m) at night and around midday, and increased the time spent on deep foraging dives (≥ 50 m) during crepuscular hours. The horizontal movement rates during deep dives were negatively correlated with maximum dive depths, suggesting that foraging at greater depths is associated with a decreased horizontal travelling speed. Penguins concentrated their foraging efforts (more deep dives and higher rates of feeding attempts) at twilight during transit, when prey may be more accessible due to diel vertical migration, while they travelled rapidly at night and midday when prey may be difficult to detect and access. Such behavioural adjustments correspond to a movement strategy adopted by avian deep divers to travel long distances while feeding on prey exhibiting diel vertical migration. Article in Journal/Newspaper Antarc* Antarctic King Penguins Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Marine Biology 170 3 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Seabirds Penguins Dive path Optimal foraging Movements Diel vertical migration Bio-logging [SDE]Environmental Sciences |
spellingShingle |
Seabirds Penguins Dive path Optimal foraging Movements Diel vertical migration Bio-logging [SDE]Environmental Sciences Watanabe, Hina Shiomi, Kozue Sato, Katsufumi Takahashi, Akinori Handrich, Yves Bost, Charles-André King penguins adjust their fine-scale travelling and foraging behaviours to spatial and diel changes in feeding opportunities |
topic_facet |
Seabirds Penguins Dive path Optimal foraging Movements Diel vertical migration Bio-logging [SDE]Environmental Sciences |
description |
International audience Abstract Central place foragers such as pelagic seabirds often travel large distances to reach profitable foraging areas. King penguins ( Aptenodytes patagonicus ) are well known for their large-scale foraging movements to the productive Antarctic Polar Front, though their fine-scale travelling and foraging characteristics remain unclear. Here, we investigated the horizontal movements and foraging patterns of king penguins to understand their fine-scale movement decisions during distant foraging trips. We attached multi-channel data loggers that can record depth, speed, tri-axis acceleration, tri-axis magnetism, and environmental temperature of the penguins and obtained data ( n = 8 birds) on their horizontal movement rates from reconstructed dive paths and their feeding attempts estimated from rapid changes in swim speed. During transit toward main foraging areas, penguins increased the time spent on shallow travelling dives (< 50 m) at night and around midday, and increased the time spent on deep foraging dives (≥ 50 m) during crepuscular hours. The horizontal movement rates during deep dives were negatively correlated with maximum dive depths, suggesting that foraging at greater depths is associated with a decreased horizontal travelling speed. Penguins concentrated their foraging efforts (more deep dives and higher rates of feeding attempts) at twilight during transit, when prey may be more accessible due to diel vertical migration, while they travelled rapidly at night and midday when prey may be difficult to detect and access. Such behavioural adjustments correspond to a movement strategy adopted by avian deep divers to travel long distances while feeding on prey exhibiting diel vertical migration. |
author2 |
The Graduate University for Advanced Studies The University of Tokyo (UTokyo) FRIS - Frontier Research Institute for Interdisciplinary Sciences (FRIS) Tohoku University Sendai Atmosphere and Ocean Research Institute, University of Tokyo The Graduate University for Advanced Studies, japan (SOKENDAI) Université de Strasbourg (UNISTRA) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Article in Journal/Newspaper |
author |
Watanabe, Hina Shiomi, Kozue Sato, Katsufumi Takahashi, Akinori Handrich, Yves Bost, Charles-André |
author_facet |
Watanabe, Hina Shiomi, Kozue Sato, Katsufumi Takahashi, Akinori Handrich, Yves Bost, Charles-André |
author_sort |
Watanabe, Hina |
title |
King penguins adjust their fine-scale travelling and foraging behaviours to spatial and diel changes in feeding opportunities |
title_short |
King penguins adjust their fine-scale travelling and foraging behaviours to spatial and diel changes in feeding opportunities |
title_full |
King penguins adjust their fine-scale travelling and foraging behaviours to spatial and diel changes in feeding opportunities |
title_fullStr |
King penguins adjust their fine-scale travelling and foraging behaviours to spatial and diel changes in feeding opportunities |
title_full_unstemmed |
King penguins adjust their fine-scale travelling and foraging behaviours to spatial and diel changes in feeding opportunities |
title_sort |
king penguins adjust their fine-scale travelling and foraging behaviours to spatial and diel changes in feeding opportunities |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-03988587 https://doi.org/10.1007/s00227-022-04170-4 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic King Penguins |
genre_facet |
Antarc* Antarctic King Penguins |
op_source |
ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-03988587 Marine Biology, 2023, 170 (3), pp.29. ⟨10.1007/s00227-022-04170-4⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-022-04170-4 hal-03988587 https://hal.science/hal-03988587 doi:10.1007/s00227-022-04170-4 WOS: 000922357200005 |
op_doi |
https://doi.org/10.1007/s00227-022-04170-4 |
container_title |
Marine Biology |
container_volume |
170 |
container_issue |
3 |
_version_ |
1792046945353596928 |