Non-song social call bouts of migrating humpback whales

Rekdahl, Melinda L., Dunlop, Rebecca A., Goldizen, Anne W., Garland, Ellen C., Biassoni, Nicoletta, Miller, Patrick and Noad, Michael J. (2015) Non-song social call bouts of migrating humpback whales. Journal of the Acoustical Society of America, 137 6: 3042-3053. doi:10.1121/1.4921280

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Author Rekdahl, Melinda L.
Dunlop, Rebecca A.
Goldizen, Anne W.
Garland, Ellen C.
Biassoni, Nicoletta
Miller, Patrick
Noad, Michael J.
Title Non-song social call bouts of migrating humpback whales
Journal name Journal of the Acoustical Society of America   Check publisher's open access policy
ISSN 0001-4966
1520-8524
Publication date 2015-06
Year available 2015
Sub-type Article (original research)
DOI 10.1121/1.4921280
Open Access Status File (Publisher version)
Volume 137
Issue 6
Start page 3042
End page 3053
Total pages 12
Place of publication Melville, NY, United States
Publisher A I P Publishing LLC
Collection year 2016
Language eng
Abstract The use of stereotyped calls within structured bouts has been described for a number of species and may increase the information potential of call repertoires. Humpback whales produce a repertoire of social calls, although little is known about the complexity or function of these calls. In this study, digital acoustic tag recordings were used to investigate social call use within bouts, the use of bouts across different social contexts, and whether particular call type combinations were favored. Call order within bouts was investigated using call transition frequencies and information theory techniques. Call bouts were defined through analysis of inter-call intervals, as any calls within 3.9 s of each other. Bouts were produced significantly more when new whales joined a group compared to groups that did not change membership, and in groups containing multiple adults escorting a female and calf compared to adult only groups. Although social calls tended to be produced in bouts, there were few repeated bout types. However, the order in which most call types were produced within bouts was non-random and dependent on the preceding call type. These bouts appear to be at least partially governed by rules for how individual components are combined.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Biological Sciences Publications
School of Veterinary Science Publications
 
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