Vocal recruitment for joint travel in wild chimpanzees.

Joint travel is a common social activity of many group-living animals, which requires some degree of coordination, sometimes through communication signals. Here, we studied the use of an acoustically distinct vocalisation in chimpanzees, the 'travel hoo', a signal given specifically in the...

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Autores principales:	Thibaud Gruber, Klaus Zuberbühler
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/84a17ea621e140769e813a852c90d144
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id	oai:doaj.org-article:84a17ea621e140769e813a852c90d144
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spelling	oai:doaj.org-article:84a17ea621e140769e813a852c90d1442021-11-18T08:53:51ZVocal recruitment for joint travel in wild chimpanzees.1932-620310.1371/journal.pone.0076073https://doaj.org/article/84a17ea621e140769e813a852c90d1442013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24086688/?tool=EBIhttps://doaj.org/toc/1932-6203Joint travel is a common social activity of many group-living animals, which requires some degree of coordination, sometimes through communication signals. Here, we studied the use of an acoustically distinct vocalisation in chimpanzees, the 'travel hoo', a signal given specifically in the travel context. We were interested in how this call type was produced to coordinate travel, whether it was aimed at specific individuals and how recipients responded. We found that 'travel hoos' were regularly given prior to impending departures and that silent travel initiations were less successful in recruiting than vocal initiations. Other behaviours associated with departure were unrelated to recruitment, suggesting that 'travel hoos' facilitated joint travel. Crucially, 'travel hoos' were more often produced in the presence of allies than other individuals, with high rates of recruitment success. We discuss these findings as evidence for how motivation to perform a specific social activity can lead to the production of a vocal signal that qualifies as 'intentional' according to most definitions, suggesting that a key psychological component of human language may have already been present in the common ancestor of chimpanzees and humans.Thibaud GruberKlaus ZuberbühlerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 9, p e76073 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Thibaud Gruber Klaus Zuberbühler Vocal recruitment for joint travel in wild chimpanzees.
description	Joint travel is a common social activity of many group-living animals, which requires some degree of coordination, sometimes through communication signals. Here, we studied the use of an acoustically distinct vocalisation in chimpanzees, the 'travel hoo', a signal given specifically in the travel context. We were interested in how this call type was produced to coordinate travel, whether it was aimed at specific individuals and how recipients responded. We found that 'travel hoos' were regularly given prior to impending departures and that silent travel initiations were less successful in recruiting than vocal initiations. Other behaviours associated with departure were unrelated to recruitment, suggesting that 'travel hoos' facilitated joint travel. Crucially, 'travel hoos' were more often produced in the presence of allies than other individuals, with high rates of recruitment success. We discuss these findings as evidence for how motivation to perform a specific social activity can lead to the production of a vocal signal that qualifies as 'intentional' according to most definitions, suggesting that a key psychological component of human language may have already been present in the common ancestor of chimpanzees and humans.
format	article
author	Thibaud Gruber Klaus Zuberbühler
author_facet	Thibaud Gruber Klaus Zuberbühler
author_sort	Thibaud Gruber
title	Vocal recruitment for joint travel in wild chimpanzees.
title_short	Vocal recruitment for joint travel in wild chimpanzees.
title_full	Vocal recruitment for joint travel in wild chimpanzees.
title_fullStr	Vocal recruitment for joint travel in wild chimpanzees.
title_full_unstemmed	Vocal recruitment for joint travel in wild chimpanzees.
title_sort	vocal recruitment for joint travel in wild chimpanzees.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/84a17ea621e140769e813a852c90d144
work_keys_str_mv	AT thibaudgruber vocalrecruitmentforjointtravelinwildchimpanzees AT klauszuberbuhler vocalrecruitmentforjointtravelinwildchimpanzees
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Vocal recruitment for joint travel in wild chimpanzees.

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