Potential motivational information encoded within humpback whale non-song vocal sounds
Acoustic signals in terrestrial animals follow motivational-structural rules to inform receivers of the signaler's motivational state, valence and level of arousal. Low-frequency “harsh” signals are produced in aggressive contexts, whereas high-frequency tonal sounds are produced in fearful/app...
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Language: | English |
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2017
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:547980 2023-05-15T15:36:58+02:00 Potential motivational information encoded within humpback whale non-song vocal sounds Dunlop, Rebecca A. 2017-02-01 https://espace.library.uq.edu.au/view/UQ:547980 eng eng A I P Publishing LLC doi:10.1121/1.4978615 issn:0001-4966 issn:1520-8524 orcid:0000-0002-0427-6317 Eating Killer Whales Megaptera-Novaeangliae Orcinus-Orca Structural Rules British-Columbia Acoustic Communication Tursiops-Truncatus Agonistic Screams Vancouver-Island Mammal Sounds 1201 Arts and Humanities (miscellaneous) 3102 Acoustics and Ultrasonics Journal Article 2017 ftunivqespace https://doi.org/10.1121/1.4978615 2020-12-08T01:28:34Z Acoustic signals in terrestrial animals follow motivational-structural rules to inform receivers of the signaler's motivational state, valence and level of arousal. Low-frequency “harsh” signals are produced in aggressive contexts, whereas high-frequency tonal sounds are produced in fearful/appeasement contexts. Using the non-song social call catalogue of humpback whales (Megaptera novaeangliae), this study tested for potential motivational-structural rules within the call catalogue of a baleen whale species. A total of 32 groups within different social contexts (ranging from stable, low arousal groups, such as a female with her calf, to affiliating, higher arousal, groups containing multiple males competing for access to the central female) were visually and acoustically tracked as they migrated southwards along the eastern coast of Australia. Social calls separated into four main cluster types, with signal structures in two categories consistent with “aggressive” signals and, “fearful/appeasement” signals in terrestrial animals. The group's use of signals within these clusters matched their context in that presumed low arousal non-affiliating groups almost exclusively used “low-arousal” signals (a cluster of low frequency unmodulated or upsweep sounds). Affiliating groups used a higher proportion of an intermediate cluster of signal types deemed “higher arousal” signals and groups containing three or more adults used a higher proportion of “aggressive” signal types. Article in Journal/Newspaper baleen whale Humpback Whale Megaptera novaeangliae Orca Orcinus orca The University of Queensland: UQ eSpace The Journal of the Acoustical Society of America 141 3 2204 2213 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Eating Killer Whales Megaptera-Novaeangliae Orcinus-Orca Structural Rules British-Columbia Acoustic Communication Tursiops-Truncatus Agonistic Screams Vancouver-Island Mammal Sounds 1201 Arts and Humanities (miscellaneous) 3102 Acoustics and Ultrasonics |
spellingShingle |
Eating Killer Whales Megaptera-Novaeangliae Orcinus-Orca Structural Rules British-Columbia Acoustic Communication Tursiops-Truncatus Agonistic Screams Vancouver-Island Mammal Sounds 1201 Arts and Humanities (miscellaneous) 3102 Acoustics and Ultrasonics Dunlop, Rebecca A. Potential motivational information encoded within humpback whale non-song vocal sounds |
topic_facet |
Eating Killer Whales Megaptera-Novaeangliae Orcinus-Orca Structural Rules British-Columbia Acoustic Communication Tursiops-Truncatus Agonistic Screams Vancouver-Island Mammal Sounds 1201 Arts and Humanities (miscellaneous) 3102 Acoustics and Ultrasonics |
description |
Acoustic signals in terrestrial animals follow motivational-structural rules to inform receivers of the signaler's motivational state, valence and level of arousal. Low-frequency “harsh” signals are produced in aggressive contexts, whereas high-frequency tonal sounds are produced in fearful/appeasement contexts. Using the non-song social call catalogue of humpback whales (Megaptera novaeangliae), this study tested for potential motivational-structural rules within the call catalogue of a baleen whale species. A total of 32 groups within different social contexts (ranging from stable, low arousal groups, such as a female with her calf, to affiliating, higher arousal, groups containing multiple males competing for access to the central female) were visually and acoustically tracked as they migrated southwards along the eastern coast of Australia. Social calls separated into four main cluster types, with signal structures in two categories consistent with “aggressive” signals and, “fearful/appeasement” signals in terrestrial animals. The group's use of signals within these clusters matched their context in that presumed low arousal non-affiliating groups almost exclusively used “low-arousal” signals (a cluster of low frequency unmodulated or upsweep sounds). Affiliating groups used a higher proportion of an intermediate cluster of signal types deemed “higher arousal” signals and groups containing three or more adults used a higher proportion of “aggressive” signal types. |
format |
Article in Journal/Newspaper |
author |
Dunlop, Rebecca A. |
author_facet |
Dunlop, Rebecca A. |
author_sort |
Dunlop, Rebecca A. |
title |
Potential motivational information encoded within humpback whale non-song vocal sounds |
title_short |
Potential motivational information encoded within humpback whale non-song vocal sounds |
title_full |
Potential motivational information encoded within humpback whale non-song vocal sounds |
title_fullStr |
Potential motivational information encoded within humpback whale non-song vocal sounds |
title_full_unstemmed |
Potential motivational information encoded within humpback whale non-song vocal sounds |
title_sort |
potential motivational information encoded within humpback whale non-song vocal sounds |
publisher |
A I P Publishing LLC |
publishDate |
2017 |
url |
https://espace.library.uq.edu.au/view/UQ:547980 |
genre |
baleen whale Humpback Whale Megaptera novaeangliae Orca Orcinus orca |
genre_facet |
baleen whale Humpback Whale Megaptera novaeangliae Orca Orcinus orca |
op_relation |
doi:10.1121/1.4978615 issn:0001-4966 issn:1520-8524 orcid:0000-0002-0427-6317 |
op_doi |
https://doi.org/10.1121/1.4978615 |
container_title |
The Journal of the Acoustical Society of America |
container_volume |
141 |
container_issue |
3 |
container_start_page |
2204 |
op_container_end_page |
2213 |
_version_ |
1766367408545595392 |