Tracking the foraging migrations of Marion Island southern elephant seals (Mirounga leonina) during their first year of life
The first year of life is critical for large mammals to acquire foraging and predator avoidance skills. Southern elephant seal (Mirounga leonina) pups wean at approximately three weeks of age and depart on their first foraging trips in midsummer, typically remaining at sea for three to four months b...
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ftunivpretoria:oai:repository.up.ac.za:2263/98093 2024-09-30T14:25:39+00:00 Tracking the foraging migrations of Marion Island southern elephant seals (Mirounga leonina) during their first year of life McIntyre, Trevor Oosthuizen, W. Chris Bester, Marthan Nieuwoudt Hindell, Mark A. Reisinger, Ryan Rudolf Tosh, Cheryl A. Van den Hoff, John De Bruyn, P.J. Nico 2024-04 application/pdf http://hdl.handle.net/2263/98093 https://doi.org/10.1111/mms.13078 en eng Wiley 0824-0469 (print) 1748-7692 (online) doi:10.1111/mms.13078 http://hdl.handle.net/2263/98093 © 2023 The Authors. Marine Mammal Science published by Wiley Periodicals LLC on behalf of Society for Marine Mammalogy. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License. Southern elephant seal (Mirounga leonina) Mirounga leonina Geolocation Habitat selection Marine mammal Ontogeny Phocidae Tracking SDG-14: Life below water Article 2024 ftunivpretoria https://doi.org/10.1111/mms.13078 2024-09-17T14:22:15Z The first year of life is critical for large mammals to acquire foraging and predator avoidance skills. Southern elephant seal (Mirounga leonina) pups wean at approximately three weeks of age and depart on their first foraging trips in midsummer, typically remaining at sea for three to four months before returning to their natal islands. We describe the foraging trips (n = 29) of 16 underyearling southern elephant seals from sub-Antarctic Marion Island and compare these with trips (n = 152) of 94 older seals from the same population. While subadults (prebreeding age) and adult females (breeding age) displayed directional travel, underyearlings traveled in multiple directions from the island with no evidence of repeatability of travel directions within or between individuals and years. Maiden trips took longer to complete than subsequent trips during the first year of life, but we found no evidence for significant changes in other track metrics between the first three foraging trips. The comparatively inconsistent movement patterns of underyearlings suggest that foraging strategies of individuals are influenced by their learning and/or success during the first year of life and that individual level consistency in successful foraging strategies only become apparent in subsequent years. The South African Department of Science and Innovation through the National Research Foundation. http://wileyonlinelibrary.com/journal/mms hj2024 Mammal Research Institute Zoology and Entomology SDG-14:Life below water Article in Journal/Newspaper Antarc* Antarctic Elephant Seal Elephant Seals Marion Island Mirounga leonina Southern Elephant Seal Southern Elephant Seals University of Pretoria: UPSpace Antarctic Marine Mammal Science 40 2 |
institution |
Open Polar |
collection |
University of Pretoria: UPSpace |
op_collection_id |
ftunivpretoria |
language |
English |
topic |
Southern elephant seal (Mirounga leonina) Mirounga leonina Geolocation Habitat selection Marine mammal Ontogeny Phocidae Tracking SDG-14: Life below water |
spellingShingle |
Southern elephant seal (Mirounga leonina) Mirounga leonina Geolocation Habitat selection Marine mammal Ontogeny Phocidae Tracking SDG-14: Life below water McIntyre, Trevor Oosthuizen, W. Chris Bester, Marthan Nieuwoudt Hindell, Mark A. Reisinger, Ryan Rudolf Tosh, Cheryl A. Van den Hoff, John De Bruyn, P.J. Nico Tracking the foraging migrations of Marion Island southern elephant seals (Mirounga leonina) during their first year of life |
topic_facet |
Southern elephant seal (Mirounga leonina) Mirounga leonina Geolocation Habitat selection Marine mammal Ontogeny Phocidae Tracking SDG-14: Life below water |
description |
The first year of life is critical for large mammals to acquire foraging and predator avoidance skills. Southern elephant seal (Mirounga leonina) pups wean at approximately three weeks of age and depart on their first foraging trips in midsummer, typically remaining at sea for three to four months before returning to their natal islands. We describe the foraging trips (n = 29) of 16 underyearling southern elephant seals from sub-Antarctic Marion Island and compare these with trips (n = 152) of 94 older seals from the same population. While subadults (prebreeding age) and adult females (breeding age) displayed directional travel, underyearlings traveled in multiple directions from the island with no evidence of repeatability of travel directions within or between individuals and years. Maiden trips took longer to complete than subsequent trips during the first year of life, but we found no evidence for significant changes in other track metrics between the first three foraging trips. The comparatively inconsistent movement patterns of underyearlings suggest that foraging strategies of individuals are influenced by their learning and/or success during the first year of life and that individual level consistency in successful foraging strategies only become apparent in subsequent years. The South African Department of Science and Innovation through the National Research Foundation. http://wileyonlinelibrary.com/journal/mms hj2024 Mammal Research Institute Zoology and Entomology SDG-14:Life below water |
format |
Article in Journal/Newspaper |
author |
McIntyre, Trevor Oosthuizen, W. Chris Bester, Marthan Nieuwoudt Hindell, Mark A. Reisinger, Ryan Rudolf Tosh, Cheryl A. Van den Hoff, John De Bruyn, P.J. Nico |
author_facet |
McIntyre, Trevor Oosthuizen, W. Chris Bester, Marthan Nieuwoudt Hindell, Mark A. Reisinger, Ryan Rudolf Tosh, Cheryl A. Van den Hoff, John De Bruyn, P.J. Nico |
author_sort |
McIntyre, Trevor |
title |
Tracking the foraging migrations of Marion Island southern elephant seals (Mirounga leonina) during their first year of life |
title_short |
Tracking the foraging migrations of Marion Island southern elephant seals (Mirounga leonina) during their first year of life |
title_full |
Tracking the foraging migrations of Marion Island southern elephant seals (Mirounga leonina) during their first year of life |
title_fullStr |
Tracking the foraging migrations of Marion Island southern elephant seals (Mirounga leonina) during their first year of life |
title_full_unstemmed |
Tracking the foraging migrations of Marion Island southern elephant seals (Mirounga leonina) during their first year of life |
title_sort |
tracking the foraging migrations of marion island southern elephant seals (mirounga leonina) during their first year of life |
publisher |
Wiley |
publishDate |
2024 |
url |
http://hdl.handle.net/2263/98093 https://doi.org/10.1111/mms.13078 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Elephant Seal Elephant Seals Marion Island Mirounga leonina Southern Elephant Seal Southern Elephant Seals |
genre_facet |
Antarc* Antarctic Elephant Seal Elephant Seals Marion Island Mirounga leonina Southern Elephant Seal Southern Elephant Seals |
op_relation |
0824-0469 (print) 1748-7692 (online) doi:10.1111/mms.13078 http://hdl.handle.net/2263/98093 |
op_rights |
© 2023 The Authors. Marine Mammal Science published by Wiley Periodicals LLC on behalf of Society for Marine Mammalogy. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License. |
op_doi |
https://doi.org/10.1111/mms.13078 |
container_title |
Marine Mammal Science |
container_volume |
40 |
container_issue |
2 |
_version_ |
1811645907814318080 |