Status of pinnipeds on mid-Atlantic ridge islands, South Atlantic Ocean
The status of pinnipeds on mid-Atlantic ridge islands is reviewed to detect trends that may relate to climate change. Small numbers of southern elephant seals Mirounga leonina breed on Gough Island (40°S, 10°W) and at Bouvetøya (54°24′S, 03°21′E) where numbers remained small over ~ 68 years. Vagrant...
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ftunivpretoria:oai:repository.up.ac.za:2263/84355 2023-05-15T14:05:19+02:00 Status of pinnipeds on mid-Atlantic ridge islands, South Atlantic Ocean Bester, Marthan Nieuwoudt 2022-03-07T07:14:56Z http://hdl.handle.net/2263/84355 https://doi.org/10.1007/s00300-021-02838-z en eng Springer http://hdl.handle.net/2263/84355 Bester, M.N. Status of pinnipeds on mid-Atlantic ridge islands, South Atlantic Ocean. Polar Biology 44, 865–871 (2021). https://doi.org/10.1007/s00300-021-02838-z. 0722-4060 (print) 1432-2056 (online) doi:10.1007/s00300-021-02838-z © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. The original publication is available at : http://link.springer.comjournal/300. Leopard seal (Hydrurga leptonyx) Southern elephant seal (Mirounga leonina) Fur seals Saint Helena Ascension islands Tristan da Cunha Islands Bouvetøya Postprint Article 2022 ftunivpretoria https://doi.org/10.1007/s00300-021-02838-z 2022-05-31T13:37:46Z The status of pinnipeds on mid-Atlantic ridge islands is reviewed to detect trends that may relate to climate change. Small numbers of southern elephant seals Mirounga leonina breed on Gough Island (40°S, 10°W) and at Bouvetøya (54°24′S, 03°21′E) where numbers remained small over ~ 68 years. Vagrant southern elephant seals wandered farther north to tropical Saint Helena Island (15°57′S, 5°41′W) in historical times but have not been recorded there more recently. This suggests a contraction of their distributional range, as manifested in the decline in numbers to imminent extinction at Gough Island. At Gough Island and at Tristan da Cunha (37°05′S, 12°17′W), leopard seals Hydrurga leptonyx and Antarctic fur seals Arctocephalus gazella are occasional seasonal transients from Antarctic and sub-Antarctic islands and the circumpolar sea ice farther to the south. Large populations of Antarctic fur seals A. gazella and sub-Antarctic fur seals A. tropicalis breed at Bouvetøya and Gough Island, respectively. The current state of both populations is uncertain as other populations of conspecifics in the South Atlantic and South Indian oceans are in decline ostensibly contingent upon reduced food availability, likely precipitated by climate change. http://link.springer.com/journal/300 2022-03-09 hj2022 Mammal Research Institute Zoology and Entomology Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Bouvetøya Elephant Seal Elephant Seals Hydrurga leptonyx Leopard Seal Leopard Seals Mirounga leonina Polar Biology Sea ice South Atlantic Ocean Southern Elephant Seal Southern Elephant Seals University of Pretoria: UPSpace Antarctic Ascension Islands ENVELOPE(-81.687,-81.687,64.373,64.373) Bouvetøya ENVELOPE(3.358,3.358,-54.422,-54.422) Gough ENVELOPE(159.367,159.367,-81.633,-81.633) Helena Island ENVELOPE(-101.069,-101.069,76.652,76.652) Hydrurga ENVELOPE(-61.626,-61.626,-64.145,-64.145) Indian Mid-Atlantic Ridge Tristan ENVELOPE(140.900,140.900,-66.735,-66.735) Polar Biology 44 4 865 871 |
institution |
Open Polar |
collection |
University of Pretoria: UPSpace |
op_collection_id |
ftunivpretoria |
language |
English |
topic |
Leopard seal (Hydrurga leptonyx) Southern elephant seal (Mirounga leonina) Fur seals Saint Helena Ascension islands Tristan da Cunha Islands Bouvetøya |
spellingShingle |
Leopard seal (Hydrurga leptonyx) Southern elephant seal (Mirounga leonina) Fur seals Saint Helena Ascension islands Tristan da Cunha Islands Bouvetøya Bester, Marthan Nieuwoudt Status of pinnipeds on mid-Atlantic ridge islands, South Atlantic Ocean |
topic_facet |
Leopard seal (Hydrurga leptonyx) Southern elephant seal (Mirounga leonina) Fur seals Saint Helena Ascension islands Tristan da Cunha Islands Bouvetøya |
description |
The status of pinnipeds on mid-Atlantic ridge islands is reviewed to detect trends that may relate to climate change. Small numbers of southern elephant seals Mirounga leonina breed on Gough Island (40°S, 10°W) and at Bouvetøya (54°24′S, 03°21′E) where numbers remained small over ~ 68 years. Vagrant southern elephant seals wandered farther north to tropical Saint Helena Island (15°57′S, 5°41′W) in historical times but have not been recorded there more recently. This suggests a contraction of their distributional range, as manifested in the decline in numbers to imminent extinction at Gough Island. At Gough Island and at Tristan da Cunha (37°05′S, 12°17′W), leopard seals Hydrurga leptonyx and Antarctic fur seals Arctocephalus gazella are occasional seasonal transients from Antarctic and sub-Antarctic islands and the circumpolar sea ice farther to the south. Large populations of Antarctic fur seals A. gazella and sub-Antarctic fur seals A. tropicalis breed at Bouvetøya and Gough Island, respectively. The current state of both populations is uncertain as other populations of conspecifics in the South Atlantic and South Indian oceans are in decline ostensibly contingent upon reduced food availability, likely precipitated by climate change. http://link.springer.com/journal/300 2022-03-09 hj2022 Mammal Research Institute Zoology and Entomology |
format |
Article in Journal/Newspaper |
author |
Bester, Marthan Nieuwoudt |
author_facet |
Bester, Marthan Nieuwoudt |
author_sort |
Bester, Marthan Nieuwoudt |
title |
Status of pinnipeds on mid-Atlantic ridge islands, South Atlantic Ocean |
title_short |
Status of pinnipeds on mid-Atlantic ridge islands, South Atlantic Ocean |
title_full |
Status of pinnipeds on mid-Atlantic ridge islands, South Atlantic Ocean |
title_fullStr |
Status of pinnipeds on mid-Atlantic ridge islands, South Atlantic Ocean |
title_full_unstemmed |
Status of pinnipeds on mid-Atlantic ridge islands, South Atlantic Ocean |
title_sort |
status of pinnipeds on mid-atlantic ridge islands, south atlantic ocean |
publisher |
Springer |
publishDate |
2022 |
url |
http://hdl.handle.net/2263/84355 https://doi.org/10.1007/s00300-021-02838-z |
long_lat |
ENVELOPE(-81.687,-81.687,64.373,64.373) ENVELOPE(3.358,3.358,-54.422,-54.422) ENVELOPE(159.367,159.367,-81.633,-81.633) ENVELOPE(-101.069,-101.069,76.652,76.652) ENVELOPE(-61.626,-61.626,-64.145,-64.145) ENVELOPE(140.900,140.900,-66.735,-66.735) |
geographic |
Antarctic Ascension Islands Bouvetøya Gough Helena Island Hydrurga Indian Mid-Atlantic Ridge Tristan |
geographic_facet |
Antarctic Ascension Islands Bouvetøya Gough Helena Island Hydrurga Indian Mid-Atlantic Ridge Tristan |
genre |
Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Bouvetøya Elephant Seal Elephant Seals Hydrurga leptonyx Leopard Seal Leopard Seals Mirounga leonina Polar Biology Sea ice South Atlantic Ocean Southern Elephant Seal Southern Elephant Seals |
genre_facet |
Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Bouvetøya Elephant Seal Elephant Seals Hydrurga leptonyx Leopard Seal Leopard Seals Mirounga leonina Polar Biology Sea ice South Atlantic Ocean Southern Elephant Seal Southern Elephant Seals |
op_relation |
http://hdl.handle.net/2263/84355 Bester, M.N. Status of pinnipeds on mid-Atlantic ridge islands, South Atlantic Ocean. Polar Biology 44, 865–871 (2021). https://doi.org/10.1007/s00300-021-02838-z. 0722-4060 (print) 1432-2056 (online) doi:10.1007/s00300-021-02838-z |
op_rights |
© 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. The original publication is available at : http://link.springer.comjournal/300. |
op_doi |
https://doi.org/10.1007/s00300-021-02838-z |
container_title |
Polar Biology |
container_volume |
44 |
container_issue |
4 |
container_start_page |
865 |
op_container_end_page |
871 |
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1766277127111442432 |