Calling under pressure: short-finned pilot whales make social calls during deep foraging dives
Toothed whales rely on sound to echolocate prey and communicate with conspecifics, but little is known about how extreme pressure affects pneumatic sound production in deep-diving species with a limited air supply. The short-finned pilot whale (Globicephala macrorhynchus) is a highly social species...
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ftpubmed:oai:pubmedcentral.nih.gov:3158928 2023-05-15T18:33:29+02:00 Calling under pressure: short-finned pilot whales make social calls during deep foraging dives Jensen, Frants H. Perez, Jacobo Marrero Johnson, Mark Soto, Natacha Aguilar Madsen, Peter T. 2011-10-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3158928 http://www.ncbi.nlm.nih.gov/pubmed/21345867 https://doi.org/10.1098/rspb.2010.2604 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3158928 http://www.ncbi.nlm.nih.gov/pubmed/21345867 http://dx.doi.org/10.1098/rspb.2010.2604 This journal is © 2011 The Royal Society Research Articles Text 2011 ftpubmed https://doi.org/10.1098/rspb.2010.2604 2013-09-03T18:49:53Z Toothed whales rely on sound to echolocate prey and communicate with conspecifics, but little is known about how extreme pressure affects pneumatic sound production in deep-diving species with a limited air supply. The short-finned pilot whale (Globicephala macrorhynchus) is a highly social species among the deep-diving toothed whales, in which individuals socialize at the surface but leave their social group in pursuit of prey at depths of up to 1000 m. To investigate if these animals communicate acoustically at depth and test whether hydrostatic pressure affects communication signals, acoustic DTAGs logging sound, depth and orientation were attached to 12 pilot whales. Tagged whales produced tonal calls during deep foraging dives at depths of up to 800 m. Mean call output and duration decreased with depth despite the increased distance to conspecifics at the surface. This shows that the energy content of calls is lower at depths where lungs are collapsed and where the air volume available for sound generation is limited by ambient pressure. Frequency content was unaffected, providing a possible cue for group or species identification of diving whales. Social calls may be important to maintain social ties for foraging animals, but may be impacted adversely by vessel noise. Text toothed whales PubMed Central (PMC) Proceedings of the Royal Society B: Biological Sciences 278 1721 3017 3025 |
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Research Articles |
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Research Articles Jensen, Frants H. Perez, Jacobo Marrero Johnson, Mark Soto, Natacha Aguilar Madsen, Peter T. Calling under pressure: short-finned pilot whales make social calls during deep foraging dives |
topic_facet |
Research Articles |
description |
Toothed whales rely on sound to echolocate prey and communicate with conspecifics, but little is known about how extreme pressure affects pneumatic sound production in deep-diving species with a limited air supply. The short-finned pilot whale (Globicephala macrorhynchus) is a highly social species among the deep-diving toothed whales, in which individuals socialize at the surface but leave their social group in pursuit of prey at depths of up to 1000 m. To investigate if these animals communicate acoustically at depth and test whether hydrostatic pressure affects communication signals, acoustic DTAGs logging sound, depth and orientation were attached to 12 pilot whales. Tagged whales produced tonal calls during deep foraging dives at depths of up to 800 m. Mean call output and duration decreased with depth despite the increased distance to conspecifics at the surface. This shows that the energy content of calls is lower at depths where lungs are collapsed and where the air volume available for sound generation is limited by ambient pressure. Frequency content was unaffected, providing a possible cue for group or species identification of diving whales. Social calls may be important to maintain social ties for foraging animals, but may be impacted adversely by vessel noise. |
format |
Text |
author |
Jensen, Frants H. Perez, Jacobo Marrero Johnson, Mark Soto, Natacha Aguilar Madsen, Peter T. |
author_facet |
Jensen, Frants H. Perez, Jacobo Marrero Johnson, Mark Soto, Natacha Aguilar Madsen, Peter T. |
author_sort |
Jensen, Frants H. |
title |
Calling under pressure: short-finned pilot whales make social calls during deep foraging dives |
title_short |
Calling under pressure: short-finned pilot whales make social calls during deep foraging dives |
title_full |
Calling under pressure: short-finned pilot whales make social calls during deep foraging dives |
title_fullStr |
Calling under pressure: short-finned pilot whales make social calls during deep foraging dives |
title_full_unstemmed |
Calling under pressure: short-finned pilot whales make social calls during deep foraging dives |
title_sort |
calling under pressure: short-finned pilot whales make social calls during deep foraging dives |
publisher |
The Royal Society |
publishDate |
2011 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3158928 http://www.ncbi.nlm.nih.gov/pubmed/21345867 https://doi.org/10.1098/rspb.2010.2604 |
genre |
toothed whales |
genre_facet |
toothed whales |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3158928 http://www.ncbi.nlm.nih.gov/pubmed/21345867 http://dx.doi.org/10.1098/rspb.2010.2604 |
op_rights |
This journal is © 2011 The Royal Society |
op_doi |
https://doi.org/10.1098/rspb.2010.2604 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
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278 |
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1721 |
container_start_page |
3017 |
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3025 |
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1766218096941465600 |