Foraging patterns of polar penguins
Sub-antarctic and polar penguins have revealed important differences in the distances travelled to foraging areas, the physical and biological characteristics of foraging areas, and foraging patterns. Differences are associated with preferred prey and its abundance. Data were acquired using satellit...
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ftoceanrep:oai:oceanrep.geomar.de:53016 2023-05-15T14:01:00+02:00 Foraging patterns of polar penguins Kooyman, G. Hull, C. Olsson, O. Robertson, G. Croxall, J. Davis, L. Adams, N. J. Slotow, R. H. 1999 text https://oceanrep.geomar.de/id/eprint/53016/ https://oceanrep.geomar.de/id/eprint/53016/1/3735.pdf https://www.internationalornithology.org/PROCEEDINGS_Durban/Homepage.htm en eng https://oceanrep.geomar.de/id/eprint/53016/1/3735.pdf Kooyman, G., Hull, C., Olsson, O., Robertson, G., Croxall, J. and Davis, L. (1999) Foraging patterns of polar penguins. Open Access [Paper] In: 22. International Ornithological Congress 1998. , 6.-22.08.1998, Durban, South Africa . Proceedings of the 22nd International Ornithological Congress. pp. 2021-2039 . info:eu-repo/semantics/openAccess Conference or Workshop Item NonPeerReviewed 1999 ftoceanrep 2023-04-07T15:56:45Z Sub-antarctic and polar penguins have revealed important differences in the distances travelled to foraging areas, the physical and biological characteristics of foraging areas, and foraging patterns. Differences are associated with preferred prey and its abundance. Data were acquired using satellite transmitters and time/depth recorders, the former giving location and rates of travel, the latter diving depths and patterns. Distinctions between travel and feeding dives help to assess foraging success. Data were matched to satellite imagery for determination of sea surface conditions. Sub-antarctic penguins travel further than polar penguins, feed near the Antarctic polar front, and are primarily diurnal feeders. Polar species feed at edges of coastal ice, pack ice, and polynyas. Most locations are neritic. Adelies specialise in krill at shallow depth as do sub-polar Macaroni and Royal Penguins. Emperor Penguins target fish in the mesopelagic zone, which is true also of King Penguins feeding at the Antarctic Polar Front. Hunting with 24h of daylight, polar penguins feed continuously with little hourly variation in depth. Subantarctic penguins show considerable diet differences, with reduced feeding at night. Conference Object Antarc* Antarctic Emperor penguins ice pack King Penguins OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Antarctic The Antarctic |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Sub-antarctic and polar penguins have revealed important differences in the distances travelled to foraging areas, the physical and biological characteristics of foraging areas, and foraging patterns. Differences are associated with preferred prey and its abundance. Data were acquired using satellite transmitters and time/depth recorders, the former giving location and rates of travel, the latter diving depths and patterns. Distinctions between travel and feeding dives help to assess foraging success. Data were matched to satellite imagery for determination of sea surface conditions. Sub-antarctic penguins travel further than polar penguins, feed near the Antarctic polar front, and are primarily diurnal feeders. Polar species feed at edges of coastal ice, pack ice, and polynyas. Most locations are neritic. Adelies specialise in krill at shallow depth as do sub-polar Macaroni and Royal Penguins. Emperor Penguins target fish in the mesopelagic zone, which is true also of King Penguins feeding at the Antarctic Polar Front. Hunting with 24h of daylight, polar penguins feed continuously with little hourly variation in depth. Subantarctic penguins show considerable diet differences, with reduced feeding at night. |
author2 |
Adams, N. J. Slotow, R. H. |
format |
Conference Object |
author |
Kooyman, G. Hull, C. Olsson, O. Robertson, G. Croxall, J. Davis, L. |
spellingShingle |
Kooyman, G. Hull, C. Olsson, O. Robertson, G. Croxall, J. Davis, L. Foraging patterns of polar penguins |
author_facet |
Kooyman, G. Hull, C. Olsson, O. Robertson, G. Croxall, J. Davis, L. |
author_sort |
Kooyman, G. |
title |
Foraging patterns of polar penguins |
title_short |
Foraging patterns of polar penguins |
title_full |
Foraging patterns of polar penguins |
title_fullStr |
Foraging patterns of polar penguins |
title_full_unstemmed |
Foraging patterns of polar penguins |
title_sort |
foraging patterns of polar penguins |
publishDate |
1999 |
url |
https://oceanrep.geomar.de/id/eprint/53016/ https://oceanrep.geomar.de/id/eprint/53016/1/3735.pdf https://www.internationalornithology.org/PROCEEDINGS_Durban/Homepage.htm |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Emperor penguins ice pack King Penguins |
genre_facet |
Antarc* Antarctic Emperor penguins ice pack King Penguins |
op_relation |
https://oceanrep.geomar.de/id/eprint/53016/1/3735.pdf Kooyman, G., Hull, C., Olsson, O., Robertson, G., Croxall, J. and Davis, L. (1999) Foraging patterns of polar penguins. Open Access [Paper] In: 22. International Ornithological Congress 1998. , 6.-22.08.1998, Durban, South Africa . Proceedings of the 22nd International Ornithological Congress. pp. 2021-2039 . |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766270444613140480 |