The influence of social affiliation on individual vocal signatures of northern resident killer whales (Orcinus orca)
Northern resident killer whales (Orcinus orca) live in highly stable groups and use group-specific vocal signals, but individual variation in calls has not been described previously. A towed beam-forming array was used to ascribe stereotyped pulsed calls with two independently modulated frequency co...
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ftpubmed:oai:pubmedcentral.nih.gov:1833992 2023-05-15T17:53:30+02:00 The influence of social affiliation on individual vocal signatures of northern resident killer whales (Orcinus orca) Nousek, Anna E Slater, Peter J.B Wang, Chao Miller, Patrick J.O 2006-08-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1833992 http://www.ncbi.nlm.nih.gov/pubmed/17148267 https://doi.org/10.1098/rsbl.2006.0517 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1833992 http://www.ncbi.nlm.nih.gov/pubmed/17148267 http://dx.doi.org/10.1098/rsbl.2006.0517 © 2006 The Royal Society Research Article Text 2006 ftpubmed https://doi.org/10.1098/rsbl.2006.0517 2013-08-31T19:15:03Z Northern resident killer whales (Orcinus orca) live in highly stable groups and use group-specific vocal signals, but individual variation in calls has not been described previously. A towed beam-forming array was used to ascribe stereotyped pulsed calls with two independently modulated frequency contours to visually identified individual killer whales in Johnstone Strait, British Columbia. Overall, call similarity determined using neural networks differed significantly between different affiliation levels for both frequency components of all the call types analysed. This method distinguished calls from individuals within the same matriline better than different calls produced by a single individual and better than by chance. The calls of individuals from different matrilines were more distinctive than those within the same matriline, confirming previous studies based on group recordings. These results show that frequency contours of stereotyped calls differ among the individuals that are constantly associated with each other and use group-specific vocalizations, though across-group differences were substantially more pronounced. Text Orca Orcinus orca PubMed Central (PMC) Biology Letters 2 4 481 484 |
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Research Article Nousek, Anna E Slater, Peter J.B Wang, Chao Miller, Patrick J.O The influence of social affiliation on individual vocal signatures of northern resident killer whales (Orcinus orca) |
topic_facet |
Research Article |
description |
Northern resident killer whales (Orcinus orca) live in highly stable groups and use group-specific vocal signals, but individual variation in calls has not been described previously. A towed beam-forming array was used to ascribe stereotyped pulsed calls with two independently modulated frequency contours to visually identified individual killer whales in Johnstone Strait, British Columbia. Overall, call similarity determined using neural networks differed significantly between different affiliation levels for both frequency components of all the call types analysed. This method distinguished calls from individuals within the same matriline better than different calls produced by a single individual and better than by chance. The calls of individuals from different matrilines were more distinctive than those within the same matriline, confirming previous studies based on group recordings. These results show that frequency contours of stereotyped calls differ among the individuals that are constantly associated with each other and use group-specific vocalizations, though across-group differences were substantially more pronounced. |
format |
Text |
author |
Nousek, Anna E Slater, Peter J.B Wang, Chao Miller, Patrick J.O |
author_facet |
Nousek, Anna E Slater, Peter J.B Wang, Chao Miller, Patrick J.O |
author_sort |
Nousek, Anna E |
title |
The influence of social affiliation on individual vocal signatures of northern resident killer whales (Orcinus orca) |
title_short |
The influence of social affiliation on individual vocal signatures of northern resident killer whales (Orcinus orca) |
title_full |
The influence of social affiliation on individual vocal signatures of northern resident killer whales (Orcinus orca) |
title_fullStr |
The influence of social affiliation on individual vocal signatures of northern resident killer whales (Orcinus orca) |
title_full_unstemmed |
The influence of social affiliation on individual vocal signatures of northern resident killer whales (Orcinus orca) |
title_sort |
influence of social affiliation on individual vocal signatures of northern resident killer whales (orcinus orca) |
publisher |
The Royal Society |
publishDate |
2006 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1833992 http://www.ncbi.nlm.nih.gov/pubmed/17148267 https://doi.org/10.1098/rsbl.2006.0517 |
genre |
Orca Orcinus orca |
genre_facet |
Orca Orcinus orca |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1833992 http://www.ncbi.nlm.nih.gov/pubmed/17148267 http://dx.doi.org/10.1098/rsbl.2006.0517 |
op_rights |
© 2006 The Royal Society |
op_doi |
https://doi.org/10.1098/rsbl.2006.0517 |
container_title |
Biology Letters |
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2 |
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4 |
container_start_page |
481 |
op_container_end_page |
484 |
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1766161201098653696 |