Dolphins simplify their vocal calls in response to increased ambient noise
Ocean noise varies spatially and temporally and is driven by natural and anthropogenic processes. Increased ambient noise levels can cause signal masking and communication impairment, affecting fitness and recruitment success. However, the effects of increasing ambient noise levels on marine species...
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ftpubmed:oai:pubmedcentral.nih.gov:6227850 2023-05-15T17:32:25+02:00 Dolphins simplify their vocal calls in response to increased ambient noise Fouda, Leila Wingfield, Jessica E. Fandel, Amber D. Garrod, Aran Hodge, Kristin B. Rice, Aaron N. Bailey, Helen 2018-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6227850/ http://www.ncbi.nlm.nih.gov/pubmed/30355679 https://doi.org/10.1098/rsbl.2018.0484 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6227850/ http://www.ncbi.nlm.nih.gov/pubmed/30355679 http://dx.doi.org/10.1098/rsbl.2018.0484 © 2018 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY Marine Biology Text 2018 ftpubmed https://doi.org/10.1098/rsbl.2018.0484 2018-11-25T01:21:29Z Ocean noise varies spatially and temporally and is driven by natural and anthropogenic processes. Increased ambient noise levels can cause signal masking and communication impairment, affecting fitness and recruitment success. However, the effects of increasing ambient noise levels on marine species, such as marine mammals that primarily rely on sound for communication, are not well understood. We investigated the effects of concurrent ambient noise levels on social whistle calls produced by bottlenose dolphins (Tursiops truncatus) in the western North Atlantic. Elevated ambient noise levels were mainly caused by ship noise. Increases in ship noise, both within and below the dolphins' call bandwidth, resulted in higher dolphin whistle frequencies and a reduction in whistle contour complexity, an acoustic feature associated with individual identification. Consequently, the noise-induced simplification of dolphin whistles may reduce the information content in these acoustic signals and decrease effective communication, parent–offspring proximity or group cohesion. Text North Atlantic PubMed Central (PMC) Biology Letters 14 10 20180484 |
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Marine Biology |
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Marine Biology Fouda, Leila Wingfield, Jessica E. Fandel, Amber D. Garrod, Aran Hodge, Kristin B. Rice, Aaron N. Bailey, Helen Dolphins simplify their vocal calls in response to increased ambient noise |
topic_facet |
Marine Biology |
description |
Ocean noise varies spatially and temporally and is driven by natural and anthropogenic processes. Increased ambient noise levels can cause signal masking and communication impairment, affecting fitness and recruitment success. However, the effects of increasing ambient noise levels on marine species, such as marine mammals that primarily rely on sound for communication, are not well understood. We investigated the effects of concurrent ambient noise levels on social whistle calls produced by bottlenose dolphins (Tursiops truncatus) in the western North Atlantic. Elevated ambient noise levels were mainly caused by ship noise. Increases in ship noise, both within and below the dolphins' call bandwidth, resulted in higher dolphin whistle frequencies and a reduction in whistle contour complexity, an acoustic feature associated with individual identification. Consequently, the noise-induced simplification of dolphin whistles may reduce the information content in these acoustic signals and decrease effective communication, parent–offspring proximity or group cohesion. |
format |
Text |
author |
Fouda, Leila Wingfield, Jessica E. Fandel, Amber D. Garrod, Aran Hodge, Kristin B. Rice, Aaron N. Bailey, Helen |
author_facet |
Fouda, Leila Wingfield, Jessica E. Fandel, Amber D. Garrod, Aran Hodge, Kristin B. Rice, Aaron N. Bailey, Helen |
author_sort |
Fouda, Leila |
title |
Dolphins simplify their vocal calls in response to increased ambient noise |
title_short |
Dolphins simplify their vocal calls in response to increased ambient noise |
title_full |
Dolphins simplify their vocal calls in response to increased ambient noise |
title_fullStr |
Dolphins simplify their vocal calls in response to increased ambient noise |
title_full_unstemmed |
Dolphins simplify their vocal calls in response to increased ambient noise |
title_sort |
dolphins simplify their vocal calls in response to increased ambient noise |
publisher |
The Royal Society |
publishDate |
2018 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6227850/ http://www.ncbi.nlm.nih.gov/pubmed/30355679 https://doi.org/10.1098/rsbl.2018.0484 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6227850/ http://www.ncbi.nlm.nih.gov/pubmed/30355679 http://dx.doi.org/10.1098/rsbl.2018.0484 |
op_rights |
© 2018 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsbl.2018.0484 |
container_title |
Biology Letters |
container_volume |
14 |
container_issue |
10 |
container_start_page |
20180484 |
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1766130557696081920 |