Vocal sequences in narwhals ( Monodon monoceros )
Sequences are indicative of signal complexity in vocal communication. While vocal sequences are well-described in birds and terrestrial mammals, the extent to which marine mammals use them is less well understood. This study documents the first known examples of sequence use in the narwhal ( Monodon...
Published in: | The Journal of the Acoustical Society of America |
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2020
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Online Access: | https://research-portal.st-andrews.ac.uk/en/publications/53e009ac-ae41-4849-8877-d2fc048bd98e https://doi.org/10.1121/10.0000671 https://research-repository.st-andrews.ac.uk/bitstream/10023/20457/1/Walmsley_et_al_2020_Narwhal_vocal_sequences.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/53e009ac-ae41-4849-8877-d2fc048bd98e 2024-09-30T14:31:13+00:00 Vocal sequences in narwhals ( Monodon monoceros ) Walmsley, Sam Rendell, Luke Edward Hussey, Nigel Marcoux, Marianne 2020-02 application/pdf https://research-portal.st-andrews.ac.uk/en/publications/53e009ac-ae41-4849-8877-d2fc048bd98e https://doi.org/10.1121/10.0000671 https://research-repository.st-andrews.ac.uk/bitstream/10023/20457/1/Walmsley_et_al_2020_Narwhal_vocal_sequences.pdf eng eng https://research-portal.st-andrews.ac.uk/en/publications/53e009ac-ae41-4849-8877-d2fc048bd98e info:eu-repo/semantics/openAccess Walmsley , S , Rendell , L E , Hussey , N & Marcoux , M 2020 , ' Vocal sequences in narwhals ( Monodon monoceros ) ' , Journal of the Acoustical Society of America , vol. 147 , no. 2 , pp. 1078-1091 . https://doi.org/10.1121/10.0000671 article 2020 ftunstandrewcris https://doi.org/10.1121/10.0000671 2024-09-04T23:45:35Z Sequences are indicative of signal complexity in vocal communication. While vocal sequences are well-described in birds and terrestrial mammals, the extent to which marine mammals use them is less well understood. This study documents the first known examples of sequence use in the narwhal ( Monodon monoceros ), a gregarious Arctic cetacean. Eight female narwhals were fitted with animal-borne recording devices, resulting in one of the largest datasets of narwhal acoustic behaviour to date. A combination of visual and quantitative classification procedures was used to test whether subjectively defined vocalization patterns were organized into sequences. Next, acoustic characteristics were analyzed to assess whether sequences could disclose group or individual identity. Finally, generalized linear models was used to investigate the behavioural context under which sequences were produced. Two types of sequences, consisting of “paired” patterns and “burst pulse series,” were identified. Sequences of burst pulse series were typically produced in periods of high vocal activity, whereas the opposite was true for sequences of paired patterns, suggesting different functions for each. These findings extend the set of odontocetes which are known to use vocal sequences. Inquiry into vocal sequences in other understudied marine mammals may provide further insights into the evolution of vocal communication. Article in Journal/Newspaper Arctic Monodon monoceros narwhal* University of St Andrews: Research Portal Arctic The Journal of the Acoustical Society of America 147 2 1078 1091 |
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Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
description |
Sequences are indicative of signal complexity in vocal communication. While vocal sequences are well-described in birds and terrestrial mammals, the extent to which marine mammals use them is less well understood. This study documents the first known examples of sequence use in the narwhal ( Monodon monoceros ), a gregarious Arctic cetacean. Eight female narwhals were fitted with animal-borne recording devices, resulting in one of the largest datasets of narwhal acoustic behaviour to date. A combination of visual and quantitative classification procedures was used to test whether subjectively defined vocalization patterns were organized into sequences. Next, acoustic characteristics were analyzed to assess whether sequences could disclose group or individual identity. Finally, generalized linear models was used to investigate the behavioural context under which sequences were produced. Two types of sequences, consisting of “paired” patterns and “burst pulse series,” were identified. Sequences of burst pulse series were typically produced in periods of high vocal activity, whereas the opposite was true for sequences of paired patterns, suggesting different functions for each. These findings extend the set of odontocetes which are known to use vocal sequences. Inquiry into vocal sequences in other understudied marine mammals may provide further insights into the evolution of vocal communication. |
format |
Article in Journal/Newspaper |
author |
Walmsley, Sam Rendell, Luke Edward Hussey, Nigel Marcoux, Marianne |
spellingShingle |
Walmsley, Sam Rendell, Luke Edward Hussey, Nigel Marcoux, Marianne Vocal sequences in narwhals ( Monodon monoceros ) |
author_facet |
Walmsley, Sam Rendell, Luke Edward Hussey, Nigel Marcoux, Marianne |
author_sort |
Walmsley, Sam |
title |
Vocal sequences in narwhals ( Monodon monoceros ) |
title_short |
Vocal sequences in narwhals ( Monodon monoceros ) |
title_full |
Vocal sequences in narwhals ( Monodon monoceros ) |
title_fullStr |
Vocal sequences in narwhals ( Monodon monoceros ) |
title_full_unstemmed |
Vocal sequences in narwhals ( Monodon monoceros ) |
title_sort |
vocal sequences in narwhals ( monodon monoceros ) |
publishDate |
2020 |
url |
https://research-portal.st-andrews.ac.uk/en/publications/53e009ac-ae41-4849-8877-d2fc048bd98e https://doi.org/10.1121/10.0000671 https://research-repository.st-andrews.ac.uk/bitstream/10023/20457/1/Walmsley_et_al_2020_Narwhal_vocal_sequences.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Monodon monoceros narwhal* |
genre_facet |
Arctic Monodon monoceros narwhal* |
op_source |
Walmsley , S , Rendell , L E , Hussey , N & Marcoux , M 2020 , ' Vocal sequences in narwhals ( Monodon monoceros ) ' , Journal of the Acoustical Society of America , vol. 147 , no. 2 , pp. 1078-1091 . https://doi.org/10.1121/10.0000671 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/publications/53e009ac-ae41-4849-8877-d2fc048bd98e |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1121/10.0000671 |
container_title |
The Journal of the Acoustical Society of America |
container_volume |
147 |
container_issue |
2 |
container_start_page |
1078 |
op_container_end_page |
1091 |
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1811635859671220224 |