The spatial context of free-ranging Hawaiian spinner dolphins (Stenella longirostris) producing acoustic signals
To improve our understanding of how dolphins use acoustic signals in the wild, a three-hydrophone towed array was used to investigate the spatial occurrence of Hawaiian spinner dolphins (Stenella longirostris) relative to each other as they produced whistles, burst pulses, and echolocation clicks. G...
Published in: | The Journal of the Acoustical Society of America |
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Online Access: | https://hdl.handle.net/11370/f83f8355-21f0-4c94-8595-0e6ae7946632 https://research.rug.nl/en/publications/f83f8355-21f0-4c94-8595-0e6ae7946632 https://doi.org/10.1121/1.2151804 |
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ftunigroningenpu:oai:pure.rug.nl:publications/f83f8355-21f0-4c94-8595-0e6ae7946632 2024-06-23T07:56:12+00:00 The spatial context of free-ranging Hawaiian spinner dolphins (Stenella longirostris) producing acoustic signals Lammers, MO Schotten, M Au, WWL 2006-02 https://hdl.handle.net/11370/f83f8355-21f0-4c94-8595-0e6ae7946632 https://research.rug.nl/en/publications/f83f8355-21f0-4c94-8595-0e6ae7946632 https://doi.org/10.1121/1.2151804 eng eng https://research.rug.nl/en/publications/f83f8355-21f0-4c94-8595-0e6ae7946632 info:eu-repo/semantics/closedAccess Lammers , MO , Schotten , M & Au , WWL 2006 , ' The spatial context of free-ranging Hawaiian spinner dolphins (Stenella longirostris) producing acoustic signals ' , Journal of the Acoustical Society of America , vol. 119 , no. 2 , pp. 1244-1250 . https://doi.org/10.1121/1.2151804 BOTTLE-NOSED DOLPHINS TURSIOPS-TRUNCATUS SIGNATURE WHISTLES ECHOLOCATION SIGNALS PHOCOENA-PHOCOENA HARBOR PORPOISE DIRECTIONALITY VOCALIZATIONS REPERTOIRES MOVEMENT article 2006 ftunigroningenpu https://doi.org/10.1121/1.2151804 2024-06-03T16:17:06Z To improve our understanding of how dolphins use acoustic signals in the wild, a three-hydrophone towed array was used to investigate the spatial occurrence of Hawaiian spinner dolphins (Stenella longirostris) relative to each other as they produced whistles, burst pulses, and echolocation clicks. Groups of approximately 30 to 60 animals were recorded while they traveled and socialized in nearshore waters off Oahu, Hawaii. Signaling animals were localized using time of arrival difference cues on the three channels. Sequences of whistles occurred between dolphins separated by significantly greater distances than animals producing burst pulses. Whistles typically originated from dolphins spaced widely apart (median = 23 m), supporting the hypothesis that whistles play a role in maintaining contact between animals in a dispersed group. Burst pulses, on the other hand, usually came from animals spaced closer to one another (median = 14 m), suggesting they function as a more intimate form of signaling between adjacent individuals. The spacing between echolocating animals was more variable and exhibited a bimodal distribution. Three quarters of echolocating animals were separated by 10 m or more, suggesting that the task of vigilance in a pod may not be shared equally by all members at all times. (c) 2006 Acoustical Society of America. Article in Journal/Newspaper Phocoena phocoena University of Groningen research database The Journal of the Acoustical Society of America 119 2 1244 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
BOTTLE-NOSED DOLPHINS TURSIOPS-TRUNCATUS SIGNATURE WHISTLES ECHOLOCATION SIGNALS PHOCOENA-PHOCOENA HARBOR PORPOISE DIRECTIONALITY VOCALIZATIONS REPERTOIRES MOVEMENT |
spellingShingle |
BOTTLE-NOSED DOLPHINS TURSIOPS-TRUNCATUS SIGNATURE WHISTLES ECHOLOCATION SIGNALS PHOCOENA-PHOCOENA HARBOR PORPOISE DIRECTIONALITY VOCALIZATIONS REPERTOIRES MOVEMENT Lammers, MO Schotten, M Au, WWL The spatial context of free-ranging Hawaiian spinner dolphins (Stenella longirostris) producing acoustic signals |
topic_facet |
BOTTLE-NOSED DOLPHINS TURSIOPS-TRUNCATUS SIGNATURE WHISTLES ECHOLOCATION SIGNALS PHOCOENA-PHOCOENA HARBOR PORPOISE DIRECTIONALITY VOCALIZATIONS REPERTOIRES MOVEMENT |
description |
To improve our understanding of how dolphins use acoustic signals in the wild, a three-hydrophone towed array was used to investigate the spatial occurrence of Hawaiian spinner dolphins (Stenella longirostris) relative to each other as they produced whistles, burst pulses, and echolocation clicks. Groups of approximately 30 to 60 animals were recorded while they traveled and socialized in nearshore waters off Oahu, Hawaii. Signaling animals were localized using time of arrival difference cues on the three channels. Sequences of whistles occurred between dolphins separated by significantly greater distances than animals producing burst pulses. Whistles typically originated from dolphins spaced widely apart (median = 23 m), supporting the hypothesis that whistles play a role in maintaining contact between animals in a dispersed group. Burst pulses, on the other hand, usually came from animals spaced closer to one another (median = 14 m), suggesting they function as a more intimate form of signaling between adjacent individuals. The spacing between echolocating animals was more variable and exhibited a bimodal distribution. Three quarters of echolocating animals were separated by 10 m or more, suggesting that the task of vigilance in a pod may not be shared equally by all members at all times. (c) 2006 Acoustical Society of America. |
format |
Article in Journal/Newspaper |
author |
Lammers, MO Schotten, M Au, WWL |
author_facet |
Lammers, MO Schotten, M Au, WWL |
author_sort |
Lammers, MO |
title |
The spatial context of free-ranging Hawaiian spinner dolphins (Stenella longirostris) producing acoustic signals |
title_short |
The spatial context of free-ranging Hawaiian spinner dolphins (Stenella longirostris) producing acoustic signals |
title_full |
The spatial context of free-ranging Hawaiian spinner dolphins (Stenella longirostris) producing acoustic signals |
title_fullStr |
The spatial context of free-ranging Hawaiian spinner dolphins (Stenella longirostris) producing acoustic signals |
title_full_unstemmed |
The spatial context of free-ranging Hawaiian spinner dolphins (Stenella longirostris) producing acoustic signals |
title_sort |
spatial context of free-ranging hawaiian spinner dolphins (stenella longirostris) producing acoustic signals |
publishDate |
2006 |
url |
https://hdl.handle.net/11370/f83f8355-21f0-4c94-8595-0e6ae7946632 https://research.rug.nl/en/publications/f83f8355-21f0-4c94-8595-0e6ae7946632 https://doi.org/10.1121/1.2151804 |
genre |
Phocoena phocoena |
genre_facet |
Phocoena phocoena |
op_source |
Lammers , MO , Schotten , M & Au , WWL 2006 , ' The spatial context of free-ranging Hawaiian spinner dolphins (Stenella longirostris) producing acoustic signals ' , Journal of the Acoustical Society of America , vol. 119 , no. 2 , pp. 1244-1250 . https://doi.org/10.1121/1.2151804 |
op_relation |
https://research.rug.nl/en/publications/f83f8355-21f0-4c94-8595-0e6ae7946632 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1121/1.2151804 |
container_title |
The Journal of the Acoustical Society of America |
container_volume |
119 |
container_issue |
2 |
container_start_page |
1244 |
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1802649140674428928 |