The diving behaviour of brooding king penguins (Aptenodytes patagonicus) from the Falkland Islands: variation in dive profiles and synchronous underwater swimming provide new insights into their foraging strategies
International audience The diving behaviour of king penguins (Aptenodytes patagonicus) was studied on the Falkland Islands, where a small population (ca. 300 fledglings year1) is located at the geographical limit of their breeding range. King penguins rearing newly hatched chicks were equipped with...
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fttriple:oai:gotriple.eu:10670/1.v9lc8x 2023-05-15T17:03:52+02:00 The diving behaviour of brooding king penguins (Aptenodytes patagonicus) from the Falkland Islands: variation in dive profiles and synchronous underwater swimming provide new insights into their foraging strategies Pütz, K. Cherel, Yves Antarctic Research Trust Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2005-01-01 https://doi.org/10.1007/s00227-005-1577-x https://hal.archives-ouvertes.fr/hal-00188646 en eng HAL CCSD Springer Verlag hal-00188646 doi:10.1007/s00227-005-1577-x 10670/1.v9lc8x https://hal.archives-ouvertes.fr/hal-00188646 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology Marine Biology, Springer Verlag, 2005, 147, pp.281-290. ⟨10.1007/s00227-005-1577-x⟩ envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2005 fttriple https://doi.org/10.1007/s00227-005-1577-x 2023-01-22T17:57:23Z International audience The diving behaviour of king penguins (Aptenodytes patagonicus) was studied on the Falkland Islands, where a small population (ca. 300 fledglings year1) is located at the geographical limit of their breeding range. King penguins rearing newly hatched chicks were equipped with time-depth recorders before leaving for sea. In total, 20,175 dives >3 m were recorded from 12 birds during 15 foraging trips with a mean duration of 5.7±2.3 days. The majority of the trips was directed up to 500 km to the northeast of the breeding colony in slope waters of, and oceanic waters beyond, the Patagonian shelf. Mean time spent underwater accounted for 42±9% of the foraging trip. Mean dive depth achieved was 55±16 m; maximum dive depth recorded was 343 m. Mean dive duration was 159±25 s; maximum dive duration was 480 s. The mean vertical distance covered was 140±65 km trip1; and on average birds covered 25 km day1. Synchronous diving behaviour was observed in two birds for a period of about 24 h after leaving the colony. Dive depth correlated positively with: (1) light intensity, (2) dive duration and (3) vertical velocities, thus confirming previous findings obtained from conspecifics at other breeding sites and indicating comparable diving behaviour. However, separation of dives according to their profile—V-, U-, or W-shaped—revealed significant differences between certain dive parameters. For a given depth range, bottom time was longer and vertical velocities higher in W-dives than in U-dives. This, together with a higher number of W-dives at dawn and dusk, suggests that foraging is more effective during W-dives than U-dives, and during twilight. These findings imply that king penguins have to make more complex decisions, individually and socially, on the performance of the subsequent dive than previously thought. 10 pages Article in Journal/Newspaper King Penguins Unknown Marine Biology 147 2 281 290 |
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English |
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envir geo Pütz, K. Cherel, Yves The diving behaviour of brooding king penguins (Aptenodytes patagonicus) from the Falkland Islands: variation in dive profiles and synchronous underwater swimming provide new insights into their foraging strategies |
topic_facet |
envir geo |
description |
International audience The diving behaviour of king penguins (Aptenodytes patagonicus) was studied on the Falkland Islands, where a small population (ca. 300 fledglings year1) is located at the geographical limit of their breeding range. King penguins rearing newly hatched chicks were equipped with time-depth recorders before leaving for sea. In total, 20,175 dives >3 m were recorded from 12 birds during 15 foraging trips with a mean duration of 5.7±2.3 days. The majority of the trips was directed up to 500 km to the northeast of the breeding colony in slope waters of, and oceanic waters beyond, the Patagonian shelf. Mean time spent underwater accounted for 42±9% of the foraging trip. Mean dive depth achieved was 55±16 m; maximum dive depth recorded was 343 m. Mean dive duration was 159±25 s; maximum dive duration was 480 s. The mean vertical distance covered was 140±65 km trip1; and on average birds covered 25 km day1. Synchronous diving behaviour was observed in two birds for a period of about 24 h after leaving the colony. Dive depth correlated positively with: (1) light intensity, (2) dive duration and (3) vertical velocities, thus confirming previous findings obtained from conspecifics at other breeding sites and indicating comparable diving behaviour. However, separation of dives according to their profile—V-, U-, or W-shaped—revealed significant differences between certain dive parameters. For a given depth range, bottom time was longer and vertical velocities higher in W-dives than in U-dives. This, together with a higher number of W-dives at dawn and dusk, suggests that foraging is more effective during W-dives than U-dives, and during twilight. These findings imply that king penguins have to make more complex decisions, individually and socially, on the performance of the subsequent dive than previously thought. 10 pages |
author2 |
Antarctic Research Trust Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Pütz, K. Cherel, Yves |
author_facet |
Pütz, K. Cherel, Yves |
author_sort |
Pütz, K. |
title |
The diving behaviour of brooding king penguins (Aptenodytes patagonicus) from the Falkland Islands: variation in dive profiles and synchronous underwater swimming provide new insights into their foraging strategies |
title_short |
The diving behaviour of brooding king penguins (Aptenodytes patagonicus) from the Falkland Islands: variation in dive profiles and synchronous underwater swimming provide new insights into their foraging strategies |
title_full |
The diving behaviour of brooding king penguins (Aptenodytes patagonicus) from the Falkland Islands: variation in dive profiles and synchronous underwater swimming provide new insights into their foraging strategies |
title_fullStr |
The diving behaviour of brooding king penguins (Aptenodytes patagonicus) from the Falkland Islands: variation in dive profiles and synchronous underwater swimming provide new insights into their foraging strategies |
title_full_unstemmed |
The diving behaviour of brooding king penguins (Aptenodytes patagonicus) from the Falkland Islands: variation in dive profiles and synchronous underwater swimming provide new insights into their foraging strategies |
title_sort |
diving behaviour of brooding king penguins (aptenodytes patagonicus) from the falkland islands: variation in dive profiles and synchronous underwater swimming provide new insights into their foraging strategies |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://doi.org/10.1007/s00227-005-1577-x https://hal.archives-ouvertes.fr/hal-00188646 |
genre |
King Penguins |
genre_facet |
King Penguins |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology Marine Biology, Springer Verlag, 2005, 147, pp.281-290. ⟨10.1007/s00227-005-1577-x⟩ |
op_relation |
hal-00188646 doi:10.1007/s00227-005-1577-x 10670/1.v9lc8x https://hal.archives-ouvertes.fr/hal-00188646 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1007/s00227-005-1577-x |
container_title |
Marine Biology |
container_volume |
147 |
container_issue |
2 |
container_start_page |
281 |
op_container_end_page |
290 |
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1766057813257224192 |