Mixed-directionality of killer whale stereotyped calls: a direction of movement cue?
The functional and ecological consequences of the directional emission of sounds used for communication remain largely unexplored even though non-uniform radiation patterns have been reported across a wide range of taxa. In this study the spectral structure of stereotyped calls recorded from groups...
Published in: | Behavioral Ecology and Sociobiology |
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Language: | English |
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2002
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/mixeddirectionality-of-killer-whale-stereotyped-calls-a-direction-of-movement-cue(5e512536-66d0-4a23-a78a-4bbb051025a0).html https://doi.org/10.1007/s00265-002-0508-9 http://www.scopus.com/inward/record.url?scp=0036705619&partnerID=8YFLogxK |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/5e512536-66d0-4a23-a78a-4bbb051025a0 2024-06-23T07:54:22+00:00 Mixed-directionality of killer whale stereotyped calls: a direction of movement cue? Miller, Patrick 2002-08 https://research-portal.st-andrews.ac.uk/en/researchoutput/mixeddirectionality-of-killer-whale-stereotyped-calls-a-direction-of-movement-cue(5e512536-66d0-4a23-a78a-4bbb051025a0).html https://doi.org/10.1007/s00265-002-0508-9 http://www.scopus.com/inward/record.url?scp=0036705619&partnerID=8YFLogxK eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/mixeddirectionality-of-killer-whale-stereotyped-calls-a-direction-of-movement-cue(5e512536-66d0-4a23-a78a-4bbb051025a0).html info:eu-repo/semantics/restrictedAccess Miller , P 2002 , ' Mixed-directionality of killer whale stereotyped calls: a direction of movement cue? ' , Behavioral Ecology and Sociobiology , vol. 52 , no. 3 , pp. 262-270 . https://doi.org/10.1007/s00265-002-0508-9 directionality orientation calling contact killer whales ORCINUS-ORCA ECHOLOCATION SIGNALS ACOUSTIC BEHAVIOR BRITISH-COLUMBIA SOUND DISTANCE COMMUNICATION EVOLUTION DISCRIMINATION ABSORPTION article 2002 ftunstandrewcris https://doi.org/10.1007/s00265-002-0508-9 2024-06-13T00:18:44Z The functional and ecological consequences of the directional emission of sounds used for communication remain largely unexplored even though non-uniform radiation patterns have been reported across a wide range of taxa. In this study the spectral structure of stereotyped calls recorded from groups of travelling killer whales (Orcinus orca) moving consistently toward or away from a towed hydrophone array was measured by comparing the energy in high-frequency (>5 kHz) with that in low-frequency (1-5 kHz) bands. Relative energy in high-frequency bands was significantly greater when animals were moving toward the hydrophone array, but only in call types that contain a separately modulated high-frequency component. The difference in relative energy as a function of direction of movement was more than 10 dB at the fundamental frequency of the high-frequency component of the two most common types recorded, confirming a strong pattern of mixed-directionality in these calls. Changes in call spectra due to signaler orientation to a receiver may provide an intrinsic cue of a moving signaler's direction of movement. Killer whales have sensitive hearing over the frequency range of this potential cue, and their marked behavioral synchrony suggests its use. The direction of movement cue inherent in the directionality pattern of calls may be an efficient and reliable means for this and possibly other highly mobile species to coordinate behavior and regulate spacing relative to other individuals. Article in Journal/Newspaper Killer Whale Orca Orcinus orca Killer whale University of St Andrews: Research Portal Behavioral Ecology and Sociobiology 52 3 262 270 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
directionality orientation calling contact killer whales ORCINUS-ORCA ECHOLOCATION SIGNALS ACOUSTIC BEHAVIOR BRITISH-COLUMBIA SOUND DISTANCE COMMUNICATION EVOLUTION DISCRIMINATION ABSORPTION |
spellingShingle |
directionality orientation calling contact killer whales ORCINUS-ORCA ECHOLOCATION SIGNALS ACOUSTIC BEHAVIOR BRITISH-COLUMBIA SOUND DISTANCE COMMUNICATION EVOLUTION DISCRIMINATION ABSORPTION Miller, Patrick Mixed-directionality of killer whale stereotyped calls: a direction of movement cue? |
topic_facet |
directionality orientation calling contact killer whales ORCINUS-ORCA ECHOLOCATION SIGNALS ACOUSTIC BEHAVIOR BRITISH-COLUMBIA SOUND DISTANCE COMMUNICATION EVOLUTION DISCRIMINATION ABSORPTION |
description |
The functional and ecological consequences of the directional emission of sounds used for communication remain largely unexplored even though non-uniform radiation patterns have been reported across a wide range of taxa. In this study the spectral structure of stereotyped calls recorded from groups of travelling killer whales (Orcinus orca) moving consistently toward or away from a towed hydrophone array was measured by comparing the energy in high-frequency (>5 kHz) with that in low-frequency (1-5 kHz) bands. Relative energy in high-frequency bands was significantly greater when animals were moving toward the hydrophone array, but only in call types that contain a separately modulated high-frequency component. The difference in relative energy as a function of direction of movement was more than 10 dB at the fundamental frequency of the high-frequency component of the two most common types recorded, confirming a strong pattern of mixed-directionality in these calls. Changes in call spectra due to signaler orientation to a receiver may provide an intrinsic cue of a moving signaler's direction of movement. Killer whales have sensitive hearing over the frequency range of this potential cue, and their marked behavioral synchrony suggests its use. The direction of movement cue inherent in the directionality pattern of calls may be an efficient and reliable means for this and possibly other highly mobile species to coordinate behavior and regulate spacing relative to other individuals. |
format |
Article in Journal/Newspaper |
author |
Miller, Patrick |
author_facet |
Miller, Patrick |
author_sort |
Miller, Patrick |
title |
Mixed-directionality of killer whale stereotyped calls: a direction of movement cue? |
title_short |
Mixed-directionality of killer whale stereotyped calls: a direction of movement cue? |
title_full |
Mixed-directionality of killer whale stereotyped calls: a direction of movement cue? |
title_fullStr |
Mixed-directionality of killer whale stereotyped calls: a direction of movement cue? |
title_full_unstemmed |
Mixed-directionality of killer whale stereotyped calls: a direction of movement cue? |
title_sort |
mixed-directionality of killer whale stereotyped calls: a direction of movement cue? |
publishDate |
2002 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/mixeddirectionality-of-killer-whale-stereotyped-calls-a-direction-of-movement-cue(5e512536-66d0-4a23-a78a-4bbb051025a0).html https://doi.org/10.1007/s00265-002-0508-9 http://www.scopus.com/inward/record.url?scp=0036705619&partnerID=8YFLogxK |
genre |
Killer Whale Orca Orcinus orca Killer whale |
genre_facet |
Killer Whale Orca Orcinus orca Killer whale |
op_source |
Miller , P 2002 , ' Mixed-directionality of killer whale stereotyped calls: a direction of movement cue? ' , Behavioral Ecology and Sociobiology , vol. 52 , no. 3 , pp. 262-270 . https://doi.org/10.1007/s00265-002-0508-9 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/mixeddirectionality-of-killer-whale-stereotyped-calls-a-direction-of-movement-cue(5e512536-66d0-4a23-a78a-4bbb051025a0).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00265-002-0508-9 |
container_title |
Behavioral Ecology and Sociobiology |
container_volume |
52 |
container_issue |
3 |
container_start_page |
262 |
op_container_end_page |
270 |
_version_ |
1802646512171220992 |