Foraging ground fidelity and route-choice tactics of a marine predator: the Antarctic fur seal Arctocephalus gazella
This study examins the intra- and inter-individual changes in the foraging route-choice behaviour of 45 female Antarctic fur seals Arctocephalus gazella breeding at the Cap Noir colony in the Kerguelen Archipelago, southern Indian Ocean. Satellite transmitters were used to track seals during one or...
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Online Access: | http://www.int-res.com/abstracts/meps/v223/p287-297/ https://doi.org/10.3354/meps223287 http://ecite.utas.edu.au/22364 |
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ftunivtasecite:oai:ecite.utas.edu.au:22364 2023-05-15T13:59:07+02:00 Foraging ground fidelity and route-choice tactics of a marine predator: the Antarctic fur seal Arctocephalus gazella Bonadonna, F Lea, MA Dehorter, O Guinet, C 2001 application/pdf http://www.int-res.com/abstracts/meps/v223/p287-297/ https://doi.org/10.3354/meps223287 http://ecite.utas.edu.au/22364 en eng Inter-Research http://ecite.utas.edu.au/22364/1/Bonadonna_et_al_2001_MEPS.pdf http://dx.doi.org/10.3354/meps223287 Bonadonna, F and Lea, MA and Dehorter, O and Guinet, C, Foraging ground fidelity and route-choice tactics of a marine predator: the Antarctic fur seal Arctocephalus gazella , Marine Ecology Progress Series, 223 pp. 287-297. ISSN 0171-8630 (2001) [Refereed Article] http://ecite.utas.edu.au/22364 Environmental Sciences Environmental Science and Management Wildlife and Habitat Management Refereed Article PeerReviewed 2001 ftunivtasecite https://doi.org/10.3354/meps223287 2019-12-13T21:04:19Z This study examins the intra- and inter-individual changes in the foraging route-choice behaviour of 45 female Antarctic fur seals Arctocephalus gazella breeding at the Cap Noir colony in the Kerguelen Archipelago, southern Indian Ocean. Satellite transmitters were used to track seals during one or more consecutive foraging trips in 3 consecutive austral summers (1998 to 2000). In all years of study the seals showed a colony-preferred direction, concentrating their trips at sea in a 140 arc east of Kerguelen, indicating a preferred area for foraging. Within this area, lactating females travelled in 1 of 2 main directions: north east toward the edge of the Kerguelen plateau; and less commonly, east/south east. Each direction led seals to sub-areas characterised by different bathymetric features where animals appeared to use different tactics to search for food patches. Moreover, a fidelity index incorporating the mean direction of successive trips and the colony preferred direction indicated the existence of an individual directional fidelity. The organisation of foraging trips suggests 2 levels of learning by seals: a colony memory of the main foraging zone and an individual memory of profitable patches that are exploited by the same individual during successive trips. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seal Antarctic Fur Seals Arctocephalus gazella eCite UTAS (University of Tasmania) Antarctic The Antarctic Austral Kerguelen Indian Cap Noir ENVELOPE(70.452,70.452,-49.069,-49.069) Marine Ecology Progress Series 223 287 297 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Environmental Sciences Environmental Science and Management Wildlife and Habitat Management |
spellingShingle |
Environmental Sciences Environmental Science and Management Wildlife and Habitat Management Bonadonna, F Lea, MA Dehorter, O Guinet, C Foraging ground fidelity and route-choice tactics of a marine predator: the Antarctic fur seal Arctocephalus gazella |
topic_facet |
Environmental Sciences Environmental Science and Management Wildlife and Habitat Management |
description |
This study examins the intra- and inter-individual changes in the foraging route-choice behaviour of 45 female Antarctic fur seals Arctocephalus gazella breeding at the Cap Noir colony in the Kerguelen Archipelago, southern Indian Ocean. Satellite transmitters were used to track seals during one or more consecutive foraging trips in 3 consecutive austral summers (1998 to 2000). In all years of study the seals showed a colony-preferred direction, concentrating their trips at sea in a 140 arc east of Kerguelen, indicating a preferred area for foraging. Within this area, lactating females travelled in 1 of 2 main directions: north east toward the edge of the Kerguelen plateau; and less commonly, east/south east. Each direction led seals to sub-areas characterised by different bathymetric features where animals appeared to use different tactics to search for food patches. Moreover, a fidelity index incorporating the mean direction of successive trips and the colony preferred direction indicated the existence of an individual directional fidelity. The organisation of foraging trips suggests 2 levels of learning by seals: a colony memory of the main foraging zone and an individual memory of profitable patches that are exploited by the same individual during successive trips. |
format |
Article in Journal/Newspaper |
author |
Bonadonna, F Lea, MA Dehorter, O Guinet, C |
author_facet |
Bonadonna, F Lea, MA Dehorter, O Guinet, C |
author_sort |
Bonadonna, F |
title |
Foraging ground fidelity and route-choice tactics of a marine predator: the Antarctic fur seal Arctocephalus gazella |
title_short |
Foraging ground fidelity and route-choice tactics of a marine predator: the Antarctic fur seal Arctocephalus gazella |
title_full |
Foraging ground fidelity and route-choice tactics of a marine predator: the Antarctic fur seal Arctocephalus gazella |
title_fullStr |
Foraging ground fidelity and route-choice tactics of a marine predator: the Antarctic fur seal Arctocephalus gazella |
title_full_unstemmed |
Foraging ground fidelity and route-choice tactics of a marine predator: the Antarctic fur seal Arctocephalus gazella |
title_sort |
foraging ground fidelity and route-choice tactics of a marine predator: the antarctic fur seal arctocephalus gazella |
publisher |
Inter-Research |
publishDate |
2001 |
url |
http://www.int-res.com/abstracts/meps/v223/p287-297/ https://doi.org/10.3354/meps223287 http://ecite.utas.edu.au/22364 |
long_lat |
ENVELOPE(70.452,70.452,-49.069,-49.069) |
geographic |
Antarctic The Antarctic Austral Kerguelen Indian Cap Noir |
geographic_facet |
Antarctic The Antarctic Austral Kerguelen Indian Cap Noir |
genre |
Antarc* Antarctic Antarctic Fur Seal Antarctic Fur Seals Arctocephalus gazella |
genre_facet |
Antarc* Antarctic Antarctic Fur Seal Antarctic Fur Seals Arctocephalus gazella |
op_relation |
http://ecite.utas.edu.au/22364/1/Bonadonna_et_al_2001_MEPS.pdf http://dx.doi.org/10.3354/meps223287 Bonadonna, F and Lea, MA and Dehorter, O and Guinet, C, Foraging ground fidelity and route-choice tactics of a marine predator: the Antarctic fur seal Arctocephalus gazella , Marine Ecology Progress Series, 223 pp. 287-297. ISSN 0171-8630 (2001) [Refereed Article] http://ecite.utas.edu.au/22364 |
op_doi |
https://doi.org/10.3354/meps223287 |
container_title |
Marine Ecology Progress Series |
container_volume |
223 |
container_start_page |
287 |
op_container_end_page |
297 |
_version_ |
1766267514479706112 |