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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crroyalsociety:10.1098/rsbl.2018.0484 2024-06-23T07:55:06+00:00 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 Maryland Department of Natural Resources 2018 http://dx.doi.org/10.1098/rsbl.2018.0484 https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2018.0484 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2018.0484 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Biology Letters volume 14, issue 10, page 20180484 ISSN 1744-9561 1744-957X journal-article 2018 crroyalsociety https://doi.org/10.1098/rsbl.2018.0484 2024-06-10T04:15:08Z 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. Article in Journal/Newspaper North Atlantic The Royal Society Biology Letters 14 10 20180484 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
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. |
author2 |
Maryland Department of Natural Resources |
format |
Article in Journal/Newspaper |
author |
Fouda, Leila Wingfield, Jessica E. Fandel, Amber D. Garrod, Aran Hodge, Kristin B. Rice, Aaron N. Bailey, Helen |
spellingShingle |
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 |
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://dx.doi.org/10.1098/rsbl.2018.0484 https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2018.0484 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2018.0484 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Biology Letters volume 14, issue 10, page 20180484 ISSN 1744-9561 1744-957X |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
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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1802647523208200192 |