Geographic variation in the underwater vocalizations of Weddell seals ( Leptonychotes weddelli) from Palmer Peninsula and McMurdo Sound, Antarctica
The Weddell seal (Leptonychotes weddelli) is one of the most vocal pinnipeds. The repertoires of subice vocalizations of Weddell seals recorded at Palmer Peninsula and at McMurdo Sound, Antarctica, are different. Although seals at both sites give some of the same vocalizations, there are subtle spec...
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Canadian Science Publishing
1983
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crcansciencepubl:10.1139/z83-291 2024-09-30T14:25:00+00:00 Geographic variation in the underwater vocalizations of Weddell seals ( Leptonychotes weddelli) from Palmer Peninsula and McMurdo Sound, Antarctica Thomas, Jeànette A. Stirling, Ian 1983 http://dx.doi.org/10.1139/z83-291 http://www.nrcresearchpress.com/doi/pdf/10.1139/z83-291 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 61, issue 10, page 2203-2212 ISSN 0008-4301 1480-3283 journal-article 1983 crcansciencepubl https://doi.org/10.1139/z83-291 2024-09-19T04:09:50Z The Weddell seal (Leptonychotes weddelli) is one of the most vocal pinnipeds. The repertoires of subice vocalizations of Weddell seals recorded at Palmer Peninsula and at McMurdo Sound, Antarctica, are different. Although seals at both sites give some of the same vocalizations, there are subtle spectral and temporal differences. In addition each population has unique vocalizations which are not heard at the other site. At Palmer Peninsula, there are several usage characteristics not exhibited at McMurdo Sound, such as mirror-image vocalization pairs and vocalization trios. Weddell seals in McMurdo Sound make extensive use of nine auxiliary sounds, while the Peninsula repertoire has none. Factors which appear to have been important in the development of these geographic differences appear to include strong fidelity to breeding sites, a polygynous mating system, and learning. Geographically different vocal repertoires have potential for identifying discrete breeding stocks of Antarctic seals. Article in Journal/Newspaper Antarc* Antarctic Antarctica Leptonychotes weddelli McMurdo Sound Weddell Seal Weddell Seals Canadian Science Publishing Antarctic McMurdo Sound Weddell Canadian Journal of Zoology 61 10 2203 2212 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
The Weddell seal (Leptonychotes weddelli) is one of the most vocal pinnipeds. The repertoires of subice vocalizations of Weddell seals recorded at Palmer Peninsula and at McMurdo Sound, Antarctica, are different. Although seals at both sites give some of the same vocalizations, there are subtle spectral and temporal differences. In addition each population has unique vocalizations which are not heard at the other site. At Palmer Peninsula, there are several usage characteristics not exhibited at McMurdo Sound, such as mirror-image vocalization pairs and vocalization trios. Weddell seals in McMurdo Sound make extensive use of nine auxiliary sounds, while the Peninsula repertoire has none. Factors which appear to have been important in the development of these geographic differences appear to include strong fidelity to breeding sites, a polygynous mating system, and learning. Geographically different vocal repertoires have potential for identifying discrete breeding stocks of Antarctic seals. |
format |
Article in Journal/Newspaper |
author |
Thomas, Jeànette A. Stirling, Ian |
spellingShingle |
Thomas, Jeànette A. Stirling, Ian Geographic variation in the underwater vocalizations of Weddell seals ( Leptonychotes weddelli) from Palmer Peninsula and McMurdo Sound, Antarctica |
author_facet |
Thomas, Jeànette A. Stirling, Ian |
author_sort |
Thomas, Jeànette A. |
title |
Geographic variation in the underwater vocalizations of Weddell seals ( Leptonychotes weddelli) from Palmer Peninsula and McMurdo Sound, Antarctica |
title_short |
Geographic variation in the underwater vocalizations of Weddell seals ( Leptonychotes weddelli) from Palmer Peninsula and McMurdo Sound, Antarctica |
title_full |
Geographic variation in the underwater vocalizations of Weddell seals ( Leptonychotes weddelli) from Palmer Peninsula and McMurdo Sound, Antarctica |
title_fullStr |
Geographic variation in the underwater vocalizations of Weddell seals ( Leptonychotes weddelli) from Palmer Peninsula and McMurdo Sound, Antarctica |
title_full_unstemmed |
Geographic variation in the underwater vocalizations of Weddell seals ( Leptonychotes weddelli) from Palmer Peninsula and McMurdo Sound, Antarctica |
title_sort |
geographic variation in the underwater vocalizations of weddell seals ( leptonychotes weddelli) from palmer peninsula and mcmurdo sound, antarctica |
publisher |
Canadian Science Publishing |
publishDate |
1983 |
url |
http://dx.doi.org/10.1139/z83-291 http://www.nrcresearchpress.com/doi/pdf/10.1139/z83-291 |
geographic |
Antarctic McMurdo Sound Weddell |
geographic_facet |
Antarctic McMurdo Sound Weddell |
genre |
Antarc* Antarctic Antarctica Leptonychotes weddelli McMurdo Sound Weddell Seal Weddell Seals |
genre_facet |
Antarc* Antarctic Antarctica Leptonychotes weddelli McMurdo Sound Weddell Seal Weddell Seals |
op_source |
Canadian Journal of Zoology volume 61, issue 10, page 2203-2212 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z83-291 |
container_title |
Canadian Journal of Zoology |
container_volume |
61 |
container_issue |
10 |
container_start_page |
2203 |
op_container_end_page |
2212 |
_version_ |
1811643089043849216 |