Timing of foraging by the wandering albatross diomedea exulans
Deployment of devices which record timing and magnitude of food ingestion in two wandering albatrosses Diomedea exulans at sub-Antarctic Marion Island shows that feeding occurred both at night and during the day, but with most ingestion events (70%) occurring during daylight hours . Seventy-six per...
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National Institute of Polar Research
1993
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ftoceanrep:oai:oceanrep.geomar.de:42184 2023-05-15T13:31:14+02:00 Timing of foraging by the wandering albatross diomedea exulans Cooper, John Wilson, Rory P. Adams, Nigel J. 1993 text https://oceanrep.geomar.de/id/eprint/42184/ https://oceanrep.geomar.de/id/eprint/42184/1/contents110001045319.pdf en eng National Institute of Polar Research https://oceanrep.geomar.de/id/eprint/42184/1/contents110001045319.pdf Cooper, J., Wilson, R. P. and Adams, N. J. (1993) Timing of foraging by the wandering albatross diomedea exulans. Open Access Proceedings of the NIPR Symposium on Polar Biology, 6 . pp. 55-61. info:eu-repo/semantics/openAccess Article PeerReviewed 1993 ftoceanrep 2023-04-07T15:38:48Z Deployment of devices which record timing and magnitude of food ingestion in two wandering albatrosses Diomedea exulans at sub-Antarctic Marion Island shows that feeding occurred both at night and during the day, but with most ingestion events (70%) occurring during daylight hours . Seventy-six per cent of the estimated mass of food was ingested during the day. Earlier works concluded that foraging occurred mostly during the night. We suggest that noctumal foraging represents mostly capture of live prey close to the water surface, Daytime foraging is suggested to be mainly for moribund prey that has floated to the surface. Duration of foraging trips and timing of arrival back at the nest are similar to those reported elsewhere. The arrival of females soon after dawn is considered to be a consequence of a reluctance to land on the island at night. Differences in the temporal pattern of male and female arrivals may reflect sex-specific foraging patterns. Article in Journal/Newspaper Antarc* Antarctic Diomedea exulans Marion Island Polar Biology Proceedings of the NIPR Symposium on Polar Biology Wandering Albatross OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Antarctic |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Deployment of devices which record timing and magnitude of food ingestion in two wandering albatrosses Diomedea exulans at sub-Antarctic Marion Island shows that feeding occurred both at night and during the day, but with most ingestion events (70%) occurring during daylight hours . Seventy-six per cent of the estimated mass of food was ingested during the day. Earlier works concluded that foraging occurred mostly during the night. We suggest that noctumal foraging represents mostly capture of live prey close to the water surface, Daytime foraging is suggested to be mainly for moribund prey that has floated to the surface. Duration of foraging trips and timing of arrival back at the nest are similar to those reported elsewhere. The arrival of females soon after dawn is considered to be a consequence of a reluctance to land on the island at night. Differences in the temporal pattern of male and female arrivals may reflect sex-specific foraging patterns. |
format |
Article in Journal/Newspaper |
author |
Cooper, John Wilson, Rory P. Adams, Nigel J. |
spellingShingle |
Cooper, John Wilson, Rory P. Adams, Nigel J. Timing of foraging by the wandering albatross diomedea exulans |
author_facet |
Cooper, John Wilson, Rory P. Adams, Nigel J. |
author_sort |
Cooper, John |
title |
Timing of foraging by the wandering albatross diomedea exulans |
title_short |
Timing of foraging by the wandering albatross diomedea exulans |
title_full |
Timing of foraging by the wandering albatross diomedea exulans |
title_fullStr |
Timing of foraging by the wandering albatross diomedea exulans |
title_full_unstemmed |
Timing of foraging by the wandering albatross diomedea exulans |
title_sort |
timing of foraging by the wandering albatross diomedea exulans |
publisher |
National Institute of Polar Research |
publishDate |
1993 |
url |
https://oceanrep.geomar.de/id/eprint/42184/ https://oceanrep.geomar.de/id/eprint/42184/1/contents110001045319.pdf |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Diomedea exulans Marion Island Polar Biology Proceedings of the NIPR Symposium on Polar Biology Wandering Albatross |
genre_facet |
Antarc* Antarctic Diomedea exulans Marion Island Polar Biology Proceedings of the NIPR Symposium on Polar Biology Wandering Albatross |
op_relation |
https://oceanrep.geomar.de/id/eprint/42184/1/contents110001045319.pdf Cooper, J., Wilson, R. P. and Adams, N. J. (1993) Timing of foraging by the wandering albatross diomedea exulans. Open Access Proceedings of the NIPR Symposium on Polar Biology, 6 . pp. 55-61. |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766016844571869184 |