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To grunt or not to grunt: Factors governing call production in female olive baboons, Papio anubis

Vocal signals often play an important role in synchronizing the activities of group members, coordinating decisions about when and where to travel, and facilitating social interactions in which there are potential conflicts of interest. Here, we show that when female olive baboons (Papio anubis) giv...

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Autores principales: Silk, Joan B., Roberts, Eila R., Städele, Veronika, Strum, Shirley C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6214498/
https://www.ncbi.nlm.nih.gov/pubmed/30388127
http://dx.doi.org/10.1371/journal.pone.0204601
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author Silk, Joan B.
Roberts, Eila R.
Städele, Veronika
Strum, Shirley C.
author_facet Silk, Joan B.
Roberts, Eila R.
Städele, Veronika
Strum, Shirley C.
author_sort Silk, Joan B.
collection PubMed
description Vocal signals often play an important role in synchronizing the activities of group members, coordinating decisions about when and where to travel, and facilitating social interactions in which there are potential conflicts of interest. Here, we show that when female olive baboons (Papio anubis) give low amplitude grunts after approaching other females, they are less likely to behave aggressively toward their partners and more likely to handle their partners’ infants and interact affiliatively with them. In addition, females are more likely to grunt after they approach lower ranking females than after they approach higher ranking females and are less likely to grunt after they approach their own mothers and daughters than after they approach other females. These patterns, which are strikingly similar to patterns previously reported in chacma baboons (Papio ursinus) support the hypothesis that grunts function as signals of benign intent. Moreover, they suggest that actors’ decisions about whether to grunt or remain silent are influenced by the social context, particularly their partners’ likely response to their approach. Taken together, the patterning of grunts in olive and chacma baboon suggests that these vocalizations play an important in reducing uncertainty about actors’ intentions and facilitate nonaggressive social interactions.
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spelling pubmed-62144982018-11-19 To grunt or not to grunt: Factors governing call production in female olive baboons, Papio anubis Silk, Joan B. Roberts, Eila R. Städele, Veronika Strum, Shirley C. PLoS One Research Article Vocal signals often play an important role in synchronizing the activities of group members, coordinating decisions about when and where to travel, and facilitating social interactions in which there are potential conflicts of interest. Here, we show that when female olive baboons (Papio anubis) give low amplitude grunts after approaching other females, they are less likely to behave aggressively toward their partners and more likely to handle their partners’ infants and interact affiliatively with them. In addition, females are more likely to grunt after they approach lower ranking females than after they approach higher ranking females and are less likely to grunt after they approach their own mothers and daughters than after they approach other females. These patterns, which are strikingly similar to patterns previously reported in chacma baboons (Papio ursinus) support the hypothesis that grunts function as signals of benign intent. Moreover, they suggest that actors’ decisions about whether to grunt or remain silent are influenced by the social context, particularly their partners’ likely response to their approach. Taken together, the patterning of grunts in olive and chacma baboon suggests that these vocalizations play an important in reducing uncertainty about actors’ intentions and facilitate nonaggressive social interactions. Public Library of Science 2018-11-02 /pmc/articles/PMC6214498/ /pubmed/30388127 http://dx.doi.org/10.1371/journal.pone.0204601 Text en © 2018 Silk et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Silk, Joan B.
Roberts, Eila R.
Städele, Veronika
Strum, Shirley C.
To grunt or not to grunt: Factors governing call production in female olive baboons, Papio anubis
title To grunt or not to grunt: Factors governing call production in female olive baboons, Papio anubis
title_full To grunt or not to grunt: Factors governing call production in female olive baboons, Papio anubis
title_fullStr To grunt or not to grunt: Factors governing call production in female olive baboons, Papio anubis
title_full_unstemmed To grunt or not to grunt: Factors governing call production in female olive baboons, Papio anubis
title_short To grunt or not to grunt: Factors governing call production in female olive baboons, Papio anubis
title_sort to grunt or not to grunt: factors governing call production in female olive baboons, papio anubis
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6214498/
https://www.ncbi.nlm.nih.gov/pubmed/30388127
http://dx.doi.org/10.1371/journal.pone.0204601
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