Incidental pinnipeds at high latitudes of the Vestfold Hills, Prydz Bay, East Antarctica
Abstract Species distributions are predicted to change with future climate-associated ecosystem changes such that so-called ‘vagrant’ individuals may become established or re-establish in areas currently thought to be beyond their principle ranges. Survey data were collated for occurrences of pinnip...
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2024
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Online Access: | http://dx.doi.org/10.1017/s0954102023000391 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102023000391 |
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crcambridgeupr:10.1017/s0954102023000391 2024-03-03T08:37:21+00:00 Incidental pinnipeds at high latitudes of the Vestfold Hills, Prydz Bay, East Antarctica van den Hoff, John 2024 http://dx.doi.org/10.1017/s0954102023000391 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102023000391 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science page 1-6 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2024 crcambridgeupr https://doi.org/10.1017/s0954102023000391 2024-02-08T08:32:32Z Abstract Species distributions are predicted to change with future climate-associated ecosystem changes such that so-called ‘vagrant’ individuals may become established or re-establish in areas currently thought to be beyond their principle ranges. Survey data were collated for occurrences of pinniped (seal) species at very high latitudes of the Vestfold Hills, East Antarctica. Aside from Weddell seals ( Leptonychotes weddellii ) and southern elephant seals ( Mirounga leonina ), which aggregate annually at the Vestfold Hills to breed and/or moult, three other pinniped species were observed with the recession of the fast-ice edge. Leopard seal ( Hydrurga leptonyx ) occurrences increased with an increase in a seasonally abundant prey resource, and crabeater seals ( Lobodon carcinophaga ) were seen at a time that coincides with their moult period. Occurrences of sub-adult male Antarctic fur seals ( Arctocephalus gazella ) increase the known southward range for this species and may reflect population increases at source populations in the Kerguelen Plateau area. Although there were no direct sightings of Ross seals ( Ommatophoca rossii ), their presence close to the Vestfold Hills was detected by underwater passive acoustic monitoring. Sightings of obligate drift-ice species and sub-Antarctic fur seals may change at the Vestfold Hills with climate-mediated changes in sea-ice conditions. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seals Antarctic Science Antarctica Arctocephalus gazella Crabeater Seals East Antarctica Elephant Seals Hydrurga leptonyx Leopard Seal Mirounga leonina Prydz Bay Sea ice Southern Elephant Seals Weddell Seals Cambridge University Press Antarctic East Antarctica Kerguelen Vestfold Hills Prydz Bay Weddell Vestfold Hydrurga ENVELOPE(-61.626,-61.626,-64.145,-64.145) Antarctic Science 1 6 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography van den Hoff, John Incidental pinnipeds at high latitudes of the Vestfold Hills, Prydz Bay, East Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Species distributions are predicted to change with future climate-associated ecosystem changes such that so-called ‘vagrant’ individuals may become established or re-establish in areas currently thought to be beyond their principle ranges. Survey data were collated for occurrences of pinniped (seal) species at very high latitudes of the Vestfold Hills, East Antarctica. Aside from Weddell seals ( Leptonychotes weddellii ) and southern elephant seals ( Mirounga leonina ), which aggregate annually at the Vestfold Hills to breed and/or moult, three other pinniped species were observed with the recession of the fast-ice edge. Leopard seal ( Hydrurga leptonyx ) occurrences increased with an increase in a seasonally abundant prey resource, and crabeater seals ( Lobodon carcinophaga ) were seen at a time that coincides with their moult period. Occurrences of sub-adult male Antarctic fur seals ( Arctocephalus gazella ) increase the known southward range for this species and may reflect population increases at source populations in the Kerguelen Plateau area. Although there were no direct sightings of Ross seals ( Ommatophoca rossii ), their presence close to the Vestfold Hills was detected by underwater passive acoustic monitoring. Sightings of obligate drift-ice species and sub-Antarctic fur seals may change at the Vestfold Hills with climate-mediated changes in sea-ice conditions. |
format |
Article in Journal/Newspaper |
author |
van den Hoff, John |
author_facet |
van den Hoff, John |
author_sort |
van den Hoff, John |
title |
Incidental pinnipeds at high latitudes of the Vestfold Hills, Prydz Bay, East Antarctica |
title_short |
Incidental pinnipeds at high latitudes of the Vestfold Hills, Prydz Bay, East Antarctica |
title_full |
Incidental pinnipeds at high latitudes of the Vestfold Hills, Prydz Bay, East Antarctica |
title_fullStr |
Incidental pinnipeds at high latitudes of the Vestfold Hills, Prydz Bay, East Antarctica |
title_full_unstemmed |
Incidental pinnipeds at high latitudes of the Vestfold Hills, Prydz Bay, East Antarctica |
title_sort |
incidental pinnipeds at high latitudes of the vestfold hills, prydz bay, east antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1017/s0954102023000391 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102023000391 |
long_lat |
ENVELOPE(-61.626,-61.626,-64.145,-64.145) |
geographic |
Antarctic East Antarctica Kerguelen Vestfold Hills Prydz Bay Weddell Vestfold Hydrurga |
geographic_facet |
Antarctic East Antarctica Kerguelen Vestfold Hills Prydz Bay Weddell Vestfold Hydrurga |
genre |
Antarc* Antarctic Antarctic Fur Seals Antarctic Science Antarctica Arctocephalus gazella Crabeater Seals East Antarctica Elephant Seals Hydrurga leptonyx Leopard Seal Mirounga leonina Prydz Bay Sea ice Southern Elephant Seals Weddell Seals |
genre_facet |
Antarc* Antarctic Antarctic Fur Seals Antarctic Science Antarctica Arctocephalus gazella Crabeater Seals East Antarctica Elephant Seals Hydrurga leptonyx Leopard Seal Mirounga leonina Prydz Bay Sea ice Southern Elephant Seals Weddell Seals |
op_source |
Antarctic Science page 1-6 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102023000391 |
container_title |
Antarctic Science |
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1 |
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6 |
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1792498310714490880 |