Evidence of stereotyped underwater vocalizations of male Atlantic walruses ( Odobenus rosmarus rosmarus)
Adult male Atlantic walruses (Odobenus rosmarus rosmarus) vocalize extensively underwater during the breeding season. The individual calls are composed of one or more short repetitious pulses which may vary individually in the number, pattern, and rate at which they are given. Individual male walrus...
Published in: | Canadian Journal of Zoology |
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Language: | English |
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Canadian Science Publishing
1987
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Online Access: | http://dx.doi.org/10.1139/z87-348 http://www.nrcresearchpress.com/doi/pdf/10.1139/z87-348 |
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crcansciencepubl:10.1139/z87-348 2024-10-13T14:10:04+00:00 Evidence of stereotyped underwater vocalizations of male Atlantic walruses ( Odobenus rosmarus rosmarus) Stirling, Ian Calvert, Wendy Spencer, Cheryl 1987 http://dx.doi.org/10.1139/z87-348 http://www.nrcresearchpress.com/doi/pdf/10.1139/z87-348 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 65, issue 9, page 2311-2321 ISSN 0008-4301 1480-3283 journal-article 1987 crcansciencepubl https://doi.org/10.1139/z87-348 2024-09-19T04:09:48Z Adult male Atlantic walruses (Odobenus rosmarus rosmarus) vocalize extensively underwater during the breeding season. The individual calls are composed of one or more short repetitious pulses which may vary individually in the number, pattern, and rate at which they are given. Individual male walruses give repeated stereotyped vocalization cycles totalling several hundred pulses each for up to several hours at a time, both while the whole body is submerged and between breaths with the head submerged while at the surface. We analyzed the vocalization cycles of a sample of different walruses, and sound spectrograms of particular calls from within those cycles, to test the hypothesis that the stereotyped vocalizations of individuals are unique and recognizable. In our sample, the pulse patterns of particular calls given by individual walruses in a series of vocalization cycles were nearly identical but were consistently different from the same call given by other animals. One call, the diving vocalization of a recognizable male, was identical in two different years. Article in Journal/Newspaper Odobenus rosmarus walrus* Canadian Science Publishing Canadian Journal of Zoology 65 9 2311 2321 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Adult male Atlantic walruses (Odobenus rosmarus rosmarus) vocalize extensively underwater during the breeding season. The individual calls are composed of one or more short repetitious pulses which may vary individually in the number, pattern, and rate at which they are given. Individual male walruses give repeated stereotyped vocalization cycles totalling several hundred pulses each for up to several hours at a time, both while the whole body is submerged and between breaths with the head submerged while at the surface. We analyzed the vocalization cycles of a sample of different walruses, and sound spectrograms of particular calls from within those cycles, to test the hypothesis that the stereotyped vocalizations of individuals are unique and recognizable. In our sample, the pulse patterns of particular calls given by individual walruses in a series of vocalization cycles were nearly identical but were consistently different from the same call given by other animals. One call, the diving vocalization of a recognizable male, was identical in two different years. |
format |
Article in Journal/Newspaper |
author |
Stirling, Ian Calvert, Wendy Spencer, Cheryl |
spellingShingle |
Stirling, Ian Calvert, Wendy Spencer, Cheryl Evidence of stereotyped underwater vocalizations of male Atlantic walruses ( Odobenus rosmarus rosmarus) |
author_facet |
Stirling, Ian Calvert, Wendy Spencer, Cheryl |
author_sort |
Stirling, Ian |
title |
Evidence of stereotyped underwater vocalizations of male Atlantic walruses ( Odobenus rosmarus rosmarus) |
title_short |
Evidence of stereotyped underwater vocalizations of male Atlantic walruses ( Odobenus rosmarus rosmarus) |
title_full |
Evidence of stereotyped underwater vocalizations of male Atlantic walruses ( Odobenus rosmarus rosmarus) |
title_fullStr |
Evidence of stereotyped underwater vocalizations of male Atlantic walruses ( Odobenus rosmarus rosmarus) |
title_full_unstemmed |
Evidence of stereotyped underwater vocalizations of male Atlantic walruses ( Odobenus rosmarus rosmarus) |
title_sort |
evidence of stereotyped underwater vocalizations of male atlantic walruses ( odobenus rosmarus rosmarus) |
publisher |
Canadian Science Publishing |
publishDate |
1987 |
url |
http://dx.doi.org/10.1139/z87-348 http://www.nrcresearchpress.com/doi/pdf/10.1139/z87-348 |
genre |
Odobenus rosmarus walrus* |
genre_facet |
Odobenus rosmarus walrus* |
op_source |
Canadian Journal of Zoology volume 65, issue 9, page 2311-2321 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z87-348 |
container_title |
Canadian Journal of Zoology |
container_volume |
65 |
container_issue |
9 |
container_start_page |
2311 |
op_container_end_page |
2321 |
_version_ |
1812817208940691456 |