Range-dependent flexibility in the acoustic field of view of echolocating porpoises ( Phocoena phocoena )
Toothed whales use sonar to detect, locate, and track prey. They adjust emitted sound intensity, auditory sensitivity and click rate to target range, and terminate prey pursuits with high-repetition-rate, low-intensity buzzes. However, their narrow acoustic field of view (FOV) is considered stable t...
Published in: | eLife |
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2015
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/rangedependent-flexibility-in-the-acoustic-field-of-view-of-echolocating-porpoises-phocoena-phocoena(7c5181aa-f6a0-4302-826f-c75bdd0db905).html https://doi.org/10.7554/eLife.05651 https://research-repository.st-andrews.ac.uk/bitstream/10023/6646/1/wisniewska2015elifee05651.pdf |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/7c5181aa-f6a0-4302-826f-c75bdd0db905 2023-05-15T17:59:11+02:00 Range-dependent flexibility in the acoustic field of view of echolocating porpoises ( Phocoena phocoena ) Wisniewska, D.M. Ratcliffe, J.M. Beedholm, K. Christensen, C.B. Johnson, Mark Koblitz, J.C. Wahlberg, M. Madsen, P.T. 2015-03-20 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/rangedependent-flexibility-in-the-acoustic-field-of-view-of-echolocating-porpoises-phocoena-phocoena(7c5181aa-f6a0-4302-826f-c75bdd0db905).html https://doi.org/10.7554/eLife.05651 https://research-repository.st-andrews.ac.uk/bitstream/10023/6646/1/wisniewska2015elifee05651.pdf eng eng info:eu-repo/semantics/openAccess Wisniewska , D M , Ratcliffe , J M , Beedholm , K , Christensen , C B , Johnson , M , Koblitz , J C , Wahlberg , M & Madsen , P T 2015 , ' Range-dependent flexibility in the acoustic field of view of echolocating porpoises ( Phocoena phocoena ) ' , eLife , vol. 4 , e05651 . https://doi.org/10.7554/eLife.05651 Biosonar Beam Directionality Buzz Prey capture Convergent evolution article 2015 ftunstandrewcris https://doi.org/10.7554/eLife.05651 2022-10-13T15:25:56Z Toothed whales use sonar to detect, locate, and track prey. They adjust emitted sound intensity, auditory sensitivity and click rate to target range, and terminate prey pursuits with high-repetition-rate, low-intensity buzzes. However, their narrow acoustic field of view (FOV) is considered stable throughout target approach, which could facilitate prey escape at close-range. Here we show that, like some bats, harbour porpoises can broaden their biosonar beam during the terminal phase of attack but, unlike bats, maintain the ability to change beamwidth within this phase. Based on video, MRI, and acoustic-tag recordings, we propose this flexibility is modulated by the melon and implemented to accommodate dynamic spatial relationships with prey and acoustic complexity of surroundings. Despite independent evolution and different means of sound generation and transmission, whales and bats adaptively change their FOV, suggesting that beamwidth flexibility has been an important driver in the evolution of echolocation for prey tracking. Article in Journal/Newspaper Phocoena phocoena toothed whales University of St Andrews: Research Portal eLife 4 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Biosonar Beam Directionality Buzz Prey capture Convergent evolution |
spellingShingle |
Biosonar Beam Directionality Buzz Prey capture Convergent evolution Wisniewska, D.M. Ratcliffe, J.M. Beedholm, K. Christensen, C.B. Johnson, Mark Koblitz, J.C. Wahlberg, M. Madsen, P.T. Range-dependent flexibility in the acoustic field of view of echolocating porpoises ( Phocoena phocoena ) |
topic_facet |
Biosonar Beam Directionality Buzz Prey capture Convergent evolution |
description |
Toothed whales use sonar to detect, locate, and track prey. They adjust emitted sound intensity, auditory sensitivity and click rate to target range, and terminate prey pursuits with high-repetition-rate, low-intensity buzzes. However, their narrow acoustic field of view (FOV) is considered stable throughout target approach, which could facilitate prey escape at close-range. Here we show that, like some bats, harbour porpoises can broaden their biosonar beam during the terminal phase of attack but, unlike bats, maintain the ability to change beamwidth within this phase. Based on video, MRI, and acoustic-tag recordings, we propose this flexibility is modulated by the melon and implemented to accommodate dynamic spatial relationships with prey and acoustic complexity of surroundings. Despite independent evolution and different means of sound generation and transmission, whales and bats adaptively change their FOV, suggesting that beamwidth flexibility has been an important driver in the evolution of echolocation for prey tracking. |
format |
Article in Journal/Newspaper |
author |
Wisniewska, D.M. Ratcliffe, J.M. Beedholm, K. Christensen, C.B. Johnson, Mark Koblitz, J.C. Wahlberg, M. Madsen, P.T. |
author_facet |
Wisniewska, D.M. Ratcliffe, J.M. Beedholm, K. Christensen, C.B. Johnson, Mark Koblitz, J.C. Wahlberg, M. Madsen, P.T. |
author_sort |
Wisniewska, D.M. |
title |
Range-dependent flexibility in the acoustic field of view of echolocating porpoises ( Phocoena phocoena ) |
title_short |
Range-dependent flexibility in the acoustic field of view of echolocating porpoises ( Phocoena phocoena ) |
title_full |
Range-dependent flexibility in the acoustic field of view of echolocating porpoises ( Phocoena phocoena ) |
title_fullStr |
Range-dependent flexibility in the acoustic field of view of echolocating porpoises ( Phocoena phocoena ) |
title_full_unstemmed |
Range-dependent flexibility in the acoustic field of view of echolocating porpoises ( Phocoena phocoena ) |
title_sort |
range-dependent flexibility in the acoustic field of view of echolocating porpoises ( phocoena phocoena ) |
publishDate |
2015 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/rangedependent-flexibility-in-the-acoustic-field-of-view-of-echolocating-porpoises-phocoena-phocoena(7c5181aa-f6a0-4302-826f-c75bdd0db905).html https://doi.org/10.7554/eLife.05651 https://research-repository.st-andrews.ac.uk/bitstream/10023/6646/1/wisniewska2015elifee05651.pdf |
genre |
Phocoena phocoena toothed whales |
genre_facet |
Phocoena phocoena toothed whales |
op_source |
Wisniewska , D M , Ratcliffe , J M , Beedholm , K , Christensen , C B , Johnson , M , Koblitz , J C , Wahlberg , M & Madsen , P T 2015 , ' Range-dependent flexibility in the acoustic field of view of echolocating porpoises ( Phocoena phocoena ) ' , eLife , vol. 4 , e05651 . https://doi.org/10.7554/eLife.05651 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.7554/eLife.05651 |
container_title |
eLife |
container_volume |
4 |
_version_ |
1766167943524122624 |