Bottlenose dolphin communication during a role-specialized group foraging task

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Hamilton, Rebecca A.University of Massachusetts Dartmouth (author)

Bottlenose dolphin communication during a role-specialized group foraging task

Article/chapterEnglish2022

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Elsevier BV,2022

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LIBRIS-ID:oai:lup.lub.lu.se:d9791dd4-9bcc-43d5-bb91-ceca87e24248
https://lup.lub.lu.se/record/d9791dd4-9bcc-43d5-bb91-ceca87e24248URI
https://doi.org/10.1016/j.beproc.2022.104691DOI

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Language:English
Summary in:English

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SwePubSwePub

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Subject category:art swepub-publicationtype
Subject category:ref swepub-contenttype

Notes

A division of labor with role specialization is defined as individuals specializing in a subtask during repetitions of a group task. While this behavior is ubiquitous among humans, there are only four candidates found among non-eusocial mammals: lions, mice, chimpanzees, and bottlenose dolphins. Bottlenose dolphins in the Cedar Keys, Florida, engage in role specialized “driver-barrier feeding”, where a “driver” dolphin herds mullet towards “barrier” dolphins. Thus trapped, the mullet leap out of the water where the dolphins catch them in air. To investigate whether dolphins use acoustic cues or signals to coordinate this behavior, vocalizations were recorded before and during driver-barrier feeding. Results of fine-scale audio and video analysis during 81 events by 7 different driver individuals suggest that barrier animals coordinate movements during these events by cueing on the driver's echolocation. Analysis of dolphin whistle occurrence before driving events versus another foraging technique, which does not involve role specialization, revealed significantly higher whistle production immediately prior to driver-barrier events. Possible whistle functions include signaling motivation, recruiting individuals to participate, and/or behavioral coordination. While the use of cues and signals is common in humans completing role-specialized tasks, this is the first study to investigate the use of vocalizations in the coordination of a role-specialized behavior in a non-human mammal.

Subject headings and genre

NATURVETENSKAP Biologi Etologi hsv//swe
NATURAL SCIENCES Biological Sciences Behavioural Sciences Biology hsv//eng
Bottlenose dolphins
Cetaceans
Communication
Division of labor
Driver-barrier feeding
Role specialization

Added entries (persons, corporate bodies, meetings, titles ...)

Gazda, Stefanie K.University of Florida (author)
King, Stephanie L.University of Bristol (author)
Starkhammar, JosefinLund University,Lunds universitet,Avdelningen för Biomedicinsk teknik,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,LTH profilområde: Teknik för hälsa,LTH profilområden,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Engineering Health,LTH Profile areas,Faculty of Engineering, LTH(Swepub:lu)elma-jsr (author)
Connor, Richard C.University of Massachusetts Dartmouth,Florida International University (author)
University of Massachusetts DartmouthUniversity of Florida (creator_code:org_t)

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In:Behavioural Processes: Elsevier BV2000376-6357

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