Vocal sharing and individual acoustic distinctiveness within a group of captive orcas (Orcinus orca)
Among vocal learners, some animal species are known to develop individually distinctive vocalizations, and others clearly learn to produce group signatures. The optimal vocal sharing hypothesis suggests that vocal divergence and convergence are not compulsorily exclusive and both can be found at dif...
Published in: | Journal of Comparative Psychology |
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Online Access: | https://doi.org/10.1037/a0028858 |
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ftunivrennes1:oai:ori-oai-repository.univ-rennes1.fr:rennes1-ori-wf-1-5497 2023-05-15T17:53:31+02:00 Vocal sharing and individual acoustic distinctiveness within a group of captive orcas (Orcinus orca) Kremers, D. Lemasson, A. Almunia, J. Wanker, R. EthoS, UMR 6552 CNRS Université de Rennes 1 https://doi.org/10.1037/a0028858 unknown American Psychological Association Journal of Comparative Psychology, 2012, 126 (4), 433-445 doi:10.1037/a0028858 vocal communication call repertoire vocal sharing individual specificity cetaceans article scientifique ftunivrennes1 https://doi.org/10.1037/a0028858 2022-10-18T07:15:49Z Among vocal learners, some animal species are known to develop individually distinctive vocalizations, and others clearly learn to produce group signatures. The optimal vocal sharing hypothesis suggests that vocal divergence and convergence are not compulsorily exclusive and both can be found at different levels in a given species. Being individually recognizable is socially important even in species sharing vocal badges. Acoustic divergence is not systematically controlled as it can simply be due to interindividual morphological differences. We tested that hypothesis in a species known to learn their family vocal dialect socially: the orca (Orcinus orca). We identified 13 different call types, including some shared by all group members, some shared only by 2 or 3 individuals, and others particular to 1 individual. Sharing was higher between males than between females. Three of our 4 orcas each produced a unique call type, which was preferably emitted. The call types shared by all orcas still presented individual acoustic distinctiveness that could, to some degree, be explained by morphological differences. We found evidence for strong similarities between some of the call types of our captive orcas and the call types of their ancestors, which are Canadian and Icelandic free-ranging orcas. Our findings suggest that captive orcas use a complex vocal repertoire enabling each individual to produce sounds that are similar to some of their partners’, which might be used as social badges to advertise their preferential bonds, as well as individual-specific calls. Our findings open new lines of research concerning the functional value of a balanced “diverging– converging” vocal system. Article in Journal/Newspaper Orca Orcinus orca Université Rennes 1: Dissertations Journal of Comparative Psychology 126 4 433 445 |
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Open Polar |
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Université Rennes 1: Dissertations |
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topic |
vocal communication call repertoire vocal sharing individual specificity cetaceans |
spellingShingle |
vocal communication call repertoire vocal sharing individual specificity cetaceans Kremers, D. Lemasson, A. Almunia, J. Wanker, R. Vocal sharing and individual acoustic distinctiveness within a group of captive orcas (Orcinus orca) |
topic_facet |
vocal communication call repertoire vocal sharing individual specificity cetaceans |
description |
Among vocal learners, some animal species are known to develop individually distinctive vocalizations, and others clearly learn to produce group signatures. The optimal vocal sharing hypothesis suggests that vocal divergence and convergence are not compulsorily exclusive and both can be found at different levels in a given species. Being individually recognizable is socially important even in species sharing vocal badges. Acoustic divergence is not systematically controlled as it can simply be due to interindividual morphological differences. We tested that hypothesis in a species known to learn their family vocal dialect socially: the orca (Orcinus orca). We identified 13 different call types, including some shared by all group members, some shared only by 2 or 3 individuals, and others particular to 1 individual. Sharing was higher between males than between females. Three of our 4 orcas each produced a unique call type, which was preferably emitted. The call types shared by all orcas still presented individual acoustic distinctiveness that could, to some degree, be explained by morphological differences. We found evidence for strong similarities between some of the call types of our captive orcas and the call types of their ancestors, which are Canadian and Icelandic free-ranging orcas. Our findings suggest that captive orcas use a complex vocal repertoire enabling each individual to produce sounds that are similar to some of their partners’, which might be used as social badges to advertise their preferential bonds, as well as individual-specific calls. Our findings open new lines of research concerning the functional value of a balanced “diverging– converging” vocal system. |
author2 |
EthoS, UMR 6552 CNRS Université de Rennes 1 |
format |
Article in Journal/Newspaper |
author |
Kremers, D. Lemasson, A. Almunia, J. Wanker, R. |
author_facet |
Kremers, D. Lemasson, A. Almunia, J. Wanker, R. |
author_sort |
Kremers, D. |
title |
Vocal sharing and individual acoustic distinctiveness within a group of captive orcas (Orcinus orca) |
title_short |
Vocal sharing and individual acoustic distinctiveness within a group of captive orcas (Orcinus orca) |
title_full |
Vocal sharing and individual acoustic distinctiveness within a group of captive orcas (Orcinus orca) |
title_fullStr |
Vocal sharing and individual acoustic distinctiveness within a group of captive orcas (Orcinus orca) |
title_full_unstemmed |
Vocal sharing and individual acoustic distinctiveness within a group of captive orcas (Orcinus orca) |
title_sort |
vocal sharing and individual acoustic distinctiveness within a group of captive orcas (orcinus orca) |
publisher |
American Psychological Association |
url |
https://doi.org/10.1037/a0028858 |
genre |
Orca Orcinus orca |
genre_facet |
Orca Orcinus orca |
op_relation |
Journal of Comparative Psychology, 2012, 126 (4), 433-445 doi:10.1037/a0028858 |
op_doi |
https://doi.org/10.1037/a0028858 |
container_title |
Journal of Comparative Psychology |
container_volume |
126 |
container_issue |
4 |
container_start_page |
433 |
op_container_end_page |
445 |
_version_ |
1766161220617895936 |