Clicking in a killer whale habitat:narrow-band, high-frequency biosonar clicks of harbour porpoise (Phocoena phocoena) and Dall's porpoise (Phocoenoides dalli)
Odontocetes produce a range of different echolocation clicks but four groups in different families have converged on producing the same stereotyped narrow band high frequency (NBHF) click. In microchiropteran bats, sympatric species have evolved the use of different acoustic niches and subtly differ...
Published in: | PLoS ONE |
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2013
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Online Access: | https://research-portal.st-andrews.ac.uk/en/publications/cffd4a1c-25bd-4192-a71b-36f2e6da7ab7 https://doi.org/10.1371/journal.pone.0063763 https://research-repository.st-andrews.ac.uk/bitstream/10023/5027/1/Ashe_2013_PLOSone_Clicking.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/cffd4a1c-25bd-4192-a71b-36f2e6da7ab7 2024-10-13T14:07:52+00:00 Clicking in a killer whale habitat:narrow-band, high-frequency biosonar clicks of harbour porpoise (Phocoena phocoena) and Dall's porpoise (Phocoenoides dalli) Kyhn, Line A. Tougaard, Jakob Beedholm, Kristian Jensen, Frants H. Ashe, Erin Madsen, Peter T. Williams, Robert 2013-05-28 application/pdf https://research-portal.st-andrews.ac.uk/en/publications/cffd4a1c-25bd-4192-a71b-36f2e6da7ab7 https://doi.org/10.1371/journal.pone.0063763 https://research-repository.st-andrews.ac.uk/bitstream/10023/5027/1/Ashe_2013_PLOSone_Clicking.pdf eng eng info:eu-repo/semantics/openAccess Kyhn , L A , Tougaard , J , Beedholm , K , Jensen , F H , Ashe , E , Madsen , P T & Williams , R 2013 , ' Clicking in a killer whale habitat : narrow-band, high-frequency biosonar clicks of harbour porpoise (Phocoena phocoena) and Dall's porpoise (Phocoenoides dalli) ' , PLoS One , vol. 8 , no. 5 , e63763 . https://doi.org/10.1371/journal.pone.0063763 Transmission beam pattern Echolocation signals Neophocaena-phocaenoides Orcinus-orca Pseudorca-crassidens British-columbia Tonal signals Dolphins kHz Sonar article 2013 ftunstandrewcris https://doi.org/10.1371/journal.pone.0063763 2024-10-02T23:40:44Z Odontocetes produce a range of different echolocation clicks but four groups in different families have converged on producing the same stereotyped narrow band high frequency (NBHF) click. In microchiropteran bats, sympatric species have evolved the use of different acoustic niches and subtly different echolocation signals to avoid competition among species. In this study, we examined whether similar adaptations are at play among sympatric porpoise species that use NBHF echolocation clicks. We used a six-element hydrophone array to record harbour and Dall's porpoises in British Columbia (BC), Canada, and harbour porpoises in Denmark. The click source properties of all porpoise groups were remarkably similar and had an average directivity index of 25 dB. Yet there was a small, but consistent and significant 4 kHz difference in centroid frequency between sympatric Dall's (137 +/- 3 kHz) and Canadian harbour porpoises (141 +/- 2 kHz). Danish harbour porpoise clicks (136 +/- 3 kHz) were more similar to Dall's porpoise than to their conspecifics in Canada. We suggest that the spectral differences in echolocation clicks between the sympatric porpoises are consistent with evolution of a prezygotic isolating barrier (i.e., character displacement) to avoid hybridization of sympatric species. In practical terms, these spectral differences have immediate application to passive acoustic monitoring. Article in Journal/Newspaper Harbour porpoise Killer Whale Orca Orcinus orca Phocoena phocoena Killer whale University of St Andrews: Research Portal British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada PLoS ONE 8 5 e63763 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Transmission beam pattern Echolocation signals Neophocaena-phocaenoides Orcinus-orca Pseudorca-crassidens British-columbia Tonal signals Dolphins kHz Sonar |
spellingShingle |
Transmission beam pattern Echolocation signals Neophocaena-phocaenoides Orcinus-orca Pseudorca-crassidens British-columbia Tonal signals Dolphins kHz Sonar Kyhn, Line A. Tougaard, Jakob Beedholm, Kristian Jensen, Frants H. Ashe, Erin Madsen, Peter T. Williams, Robert Clicking in a killer whale habitat:narrow-band, high-frequency biosonar clicks of harbour porpoise (Phocoena phocoena) and Dall's porpoise (Phocoenoides dalli) |
topic_facet |
Transmission beam pattern Echolocation signals Neophocaena-phocaenoides Orcinus-orca Pseudorca-crassidens British-columbia Tonal signals Dolphins kHz Sonar |
description |
Odontocetes produce a range of different echolocation clicks but four groups in different families have converged on producing the same stereotyped narrow band high frequency (NBHF) click. In microchiropteran bats, sympatric species have evolved the use of different acoustic niches and subtly different echolocation signals to avoid competition among species. In this study, we examined whether similar adaptations are at play among sympatric porpoise species that use NBHF echolocation clicks. We used a six-element hydrophone array to record harbour and Dall's porpoises in British Columbia (BC), Canada, and harbour porpoises in Denmark. The click source properties of all porpoise groups were remarkably similar and had an average directivity index of 25 dB. Yet there was a small, but consistent and significant 4 kHz difference in centroid frequency between sympatric Dall's (137 +/- 3 kHz) and Canadian harbour porpoises (141 +/- 2 kHz). Danish harbour porpoise clicks (136 +/- 3 kHz) were more similar to Dall's porpoise than to their conspecifics in Canada. We suggest that the spectral differences in echolocation clicks between the sympatric porpoises are consistent with evolution of a prezygotic isolating barrier (i.e., character displacement) to avoid hybridization of sympatric species. In practical terms, these spectral differences have immediate application to passive acoustic monitoring. |
format |
Article in Journal/Newspaper |
author |
Kyhn, Line A. Tougaard, Jakob Beedholm, Kristian Jensen, Frants H. Ashe, Erin Madsen, Peter T. Williams, Robert |
author_facet |
Kyhn, Line A. Tougaard, Jakob Beedholm, Kristian Jensen, Frants H. Ashe, Erin Madsen, Peter T. Williams, Robert |
author_sort |
Kyhn, Line A. |
title |
Clicking in a killer whale habitat:narrow-band, high-frequency biosonar clicks of harbour porpoise (Phocoena phocoena) and Dall's porpoise (Phocoenoides dalli) |
title_short |
Clicking in a killer whale habitat:narrow-band, high-frequency biosonar clicks of harbour porpoise (Phocoena phocoena) and Dall's porpoise (Phocoenoides dalli) |
title_full |
Clicking in a killer whale habitat:narrow-band, high-frequency biosonar clicks of harbour porpoise (Phocoena phocoena) and Dall's porpoise (Phocoenoides dalli) |
title_fullStr |
Clicking in a killer whale habitat:narrow-band, high-frequency biosonar clicks of harbour porpoise (Phocoena phocoena) and Dall's porpoise (Phocoenoides dalli) |
title_full_unstemmed |
Clicking in a killer whale habitat:narrow-band, high-frequency biosonar clicks of harbour porpoise (Phocoena phocoena) and Dall's porpoise (Phocoenoides dalli) |
title_sort |
clicking in a killer whale habitat:narrow-band, high-frequency biosonar clicks of harbour porpoise (phocoena phocoena) and dall's porpoise (phocoenoides dalli) |
publishDate |
2013 |
url |
https://research-portal.st-andrews.ac.uk/en/publications/cffd4a1c-25bd-4192-a71b-36f2e6da7ab7 https://doi.org/10.1371/journal.pone.0063763 https://research-repository.st-andrews.ac.uk/bitstream/10023/5027/1/Ashe_2013_PLOSone_Clicking.pdf |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) |
geographic |
British Columbia Canada |
geographic_facet |
British Columbia Canada |
genre |
Harbour porpoise Killer Whale Orca Orcinus orca Phocoena phocoena Killer whale |
genre_facet |
Harbour porpoise Killer Whale Orca Orcinus orca Phocoena phocoena Killer whale |
op_source |
Kyhn , L A , Tougaard , J , Beedholm , K , Jensen , F H , Ashe , E , Madsen , P T & Williams , R 2013 , ' Clicking in a killer whale habitat : narrow-band, high-frequency biosonar clicks of harbour porpoise (Phocoena phocoena) and Dall's porpoise (Phocoenoides dalli) ' , PLoS One , vol. 8 , no. 5 , e63763 . https://doi.org/10.1371/journal.pone.0063763 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0063763 |
container_title |
PLoS ONE |
container_volume |
8 |
container_issue |
5 |
container_start_page |
e63763 |
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1812814408517156864 |