Vocal repertoires and insights into social structure of sperm whales ( Physeter macrocephalus ) in Mauritius, southwestern Indian Ocean
Sperm whales communicate using codas (stereotyped click sequences). Females and juveniles live in long‐term social units, and units with similar coda repertoires share vocal clan membership. Vocal clans exhibit culturally defined differences in their multilevel social structure. Here, we aimed to id...
Published in: | Marine Mammal Science |
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2020
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Online Access: | https://hdl.handle.net/11370/670cff1f-6d66-4b01-a1c2-76d7a94b0bea https://research.rug.nl/en/publications/670cff1f-6d66-4b01-a1c2-76d7a94b0bea https://doi.org/10.1111/mms.12673 https://pure.rug.nl/ws/files/125278728/mms.12673.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/670cff1f-6d66-4b01-a1c2-76d7a94b0bea 2024-06-23T07:56:12+00:00 Vocal repertoires and insights into social structure of sperm whales ( Physeter macrocephalus ) in Mauritius, southwestern Indian Ocean Huijser, Leonie Estrade, Vanessa Webster, Imogen Mouysset, Laurent Cadinouche, Adèle Dulau-Drouot, Violaine 2020-04 application/pdf https://hdl.handle.net/11370/670cff1f-6d66-4b01-a1c2-76d7a94b0bea https://research.rug.nl/en/publications/670cff1f-6d66-4b01-a1c2-76d7a94b0bea https://doi.org/10.1111/mms.12673 https://pure.rug.nl/ws/files/125278728/mms.12673.pdf eng eng https://research.rug.nl/en/publications/670cff1f-6d66-4b01-a1c2-76d7a94b0bea info:eu-repo/semantics/openAccess Huijser , L , Estrade , V , Webster , I , Mouysset , L , Cadinouche , A & Dulau-Drouot , V 2020 , ' Vocal repertoires and insights into social structure of sperm whales ( Physeter macrocephalus ) in Mauritius, southwestern Indian Ocean ' , Marine Mammal Science , vol. 36 , no. 2 , pp. 638-657 . https://doi.org/10.1111/mms.12673 article 2020 ftunigroningenpu https://doi.org/10.1111/mms.12673 2024-06-03T16:56:23Z Sperm whales communicate using codas (stereotyped click sequences). Females and juveniles live in long‐term social units, and units with similar coda repertoires share vocal clan membership. Vocal clans exhibit culturally defined differences in their multilevel social structure. Here, we aimed to identify different social units among sperm whales in Mauritius in the southwestern Indian Ocean, and to describe and compare their coda repertoires to investigate the presence of different vocal clans. We conducted six boat‐based surveys between 2008 and 2013, during which 101 different individuals were photo‐identified. Analysis of associations between 22 resighted individuals divided them into four candidate social units, but a lack of resightings impedes solid delineation of social units. Based on number and rhythm of clicks, at least 24 discrete coda types were detected among 4,767 analyzed codas using two different classification methods. Comparison of coda repertoires recorded from seven sperm whale groupings revealed the possible existence of two sympatric vocal clans, but the size differences of recorded repertoires warrant caution of interpretation. To further evaluate social structuring and the presence of different vocal clans in this region, future surveys should aim at obtaining long‐term sighting and acoustic data, and cover a more extensive area. Article in Journal/Newspaper Physeter macrocephalus Sperm whale University of Groningen research database Indian Marine Mammal Science 36 2 638 657 |
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Open Polar |
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University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
description |
Sperm whales communicate using codas (stereotyped click sequences). Females and juveniles live in long‐term social units, and units with similar coda repertoires share vocal clan membership. Vocal clans exhibit culturally defined differences in their multilevel social structure. Here, we aimed to identify different social units among sperm whales in Mauritius in the southwestern Indian Ocean, and to describe and compare their coda repertoires to investigate the presence of different vocal clans. We conducted six boat‐based surveys between 2008 and 2013, during which 101 different individuals were photo‐identified. Analysis of associations between 22 resighted individuals divided them into four candidate social units, but a lack of resightings impedes solid delineation of social units. Based on number and rhythm of clicks, at least 24 discrete coda types were detected among 4,767 analyzed codas using two different classification methods. Comparison of coda repertoires recorded from seven sperm whale groupings revealed the possible existence of two sympatric vocal clans, but the size differences of recorded repertoires warrant caution of interpretation. To further evaluate social structuring and the presence of different vocal clans in this region, future surveys should aim at obtaining long‐term sighting and acoustic data, and cover a more extensive area. |
format |
Article in Journal/Newspaper |
author |
Huijser, Leonie Estrade, Vanessa Webster, Imogen Mouysset, Laurent Cadinouche, Adèle Dulau-Drouot, Violaine |
spellingShingle |
Huijser, Leonie Estrade, Vanessa Webster, Imogen Mouysset, Laurent Cadinouche, Adèle Dulau-Drouot, Violaine Vocal repertoires and insights into social structure of sperm whales ( Physeter macrocephalus ) in Mauritius, southwestern Indian Ocean |
author_facet |
Huijser, Leonie Estrade, Vanessa Webster, Imogen Mouysset, Laurent Cadinouche, Adèle Dulau-Drouot, Violaine |
author_sort |
Huijser, Leonie |
title |
Vocal repertoires and insights into social structure of sperm whales ( Physeter macrocephalus ) in Mauritius, southwestern Indian Ocean |
title_short |
Vocal repertoires and insights into social structure of sperm whales ( Physeter macrocephalus ) in Mauritius, southwestern Indian Ocean |
title_full |
Vocal repertoires and insights into social structure of sperm whales ( Physeter macrocephalus ) in Mauritius, southwestern Indian Ocean |
title_fullStr |
Vocal repertoires and insights into social structure of sperm whales ( Physeter macrocephalus ) in Mauritius, southwestern Indian Ocean |
title_full_unstemmed |
Vocal repertoires and insights into social structure of sperm whales ( Physeter macrocephalus ) in Mauritius, southwestern Indian Ocean |
title_sort |
vocal repertoires and insights into social structure of sperm whales ( physeter macrocephalus ) in mauritius, southwestern indian ocean |
publishDate |
2020 |
url |
https://hdl.handle.net/11370/670cff1f-6d66-4b01-a1c2-76d7a94b0bea https://research.rug.nl/en/publications/670cff1f-6d66-4b01-a1c2-76d7a94b0bea https://doi.org/10.1111/mms.12673 https://pure.rug.nl/ws/files/125278728/mms.12673.pdf |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Physeter macrocephalus Sperm whale |
genre_facet |
Physeter macrocephalus Sperm whale |
op_source |
Huijser , L , Estrade , V , Webster , I , Mouysset , L , Cadinouche , A & Dulau-Drouot , V 2020 , ' Vocal repertoires and insights into social structure of sperm whales ( Physeter macrocephalus ) in Mauritius, southwestern Indian Ocean ' , Marine Mammal Science , vol. 36 , no. 2 , pp. 638-657 . https://doi.org/10.1111/mms.12673 |
op_relation |
https://research.rug.nl/en/publications/670cff1f-6d66-4b01-a1c2-76d7a94b0bea |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/mms.12673 |
container_title |
Marine Mammal Science |
container_volume |
36 |
container_issue |
2 |
container_start_page |
638 |
op_container_end_page |
657 |
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1802649161316696064 |