Individual Variation in the Use of Acoustic Signals to Coordinate Group Movements among Tibetan Macaques (<i>Macaca thibetana</i>)

To maintain group cohesion, social animals need to coordinate their actions during group movements. Several species use vocalizations to communicate with each other during coordination. However, the process of vocal communication and its influence in collective decision making is not clear. We studi...

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Main Authors: Meng-Meng Chen, Yu-Heng Zhang, Yi-Mei Tai, Xi Wang
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/12/16/2149
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author Meng-Meng Chen
Yu-Heng Zhang
Yi-Mei Tai
Xi Wang
author_facet Meng-Meng Chen
Yu-Heng Zhang
Yi-Mei Tai
Xi Wang
author_sort Meng-Meng Chen
collection DOAJ
description To maintain group cohesion, social animals need to coordinate their actions during group movements. Several species use vocalizations to communicate with each other during coordination. However, the process of vocal communication and its influence in collective decision making is not clear. We studied a group of free-range Tibetan macaques (<i>Macaca thibetana</i>) at Huangshan, China, and recorded acoustic signals during their group movements. It was found that three kinds of sounds were used in their movements. Group movements with vocalizations recruited more participants than the movements without sound. Moreover, during group departures, individuals in the front emitted a higher frequency of vocalization than individuals in the rear. Sex and social centrality both had a significant influence on vocalizations. Social centrality indicates the degree of proximity relations between two individuals in a social network. Females and individuals with high social centrality emitted more sound in group movements. However, social rank and the number of relatives did not affect the emission of sound. These results suggest that the function of calls in collective movements relates to coordinating group movements. This study provides an insight into the association of acoustic communication with collective decision making.
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spelling doaj.art-db9fcb213f2d4e6cbd508eb696c547412023-11-30T23:04:22ZengMDPI AGAnimals2076-26152022-08-011216214910.3390/ani12162149Individual Variation in the Use of Acoustic Signals to Coordinate Group Movements among Tibetan Macaques (<i>Macaca thibetana</i>)Meng-Meng Chen0Yu-Heng Zhang1Yi-Mei Tai2Xi Wang3School of Resources and Environmental Engineering, Anhui University, Hefei 230601, ChinaSchool of Resources and Environmental Engineering, Anhui University, Hefei 230601, ChinaSchool of Resources and Environmental Engineering, Anhui University, Hefei 230601, ChinaSchool of Resources and Environmental Engineering, Anhui University, Hefei 230601, ChinaTo maintain group cohesion, social animals need to coordinate their actions during group movements. Several species use vocalizations to communicate with each other during coordination. However, the process of vocal communication and its influence in collective decision making is not clear. We studied a group of free-range Tibetan macaques (<i>Macaca thibetana</i>) at Huangshan, China, and recorded acoustic signals during their group movements. It was found that three kinds of sounds were used in their movements. Group movements with vocalizations recruited more participants than the movements without sound. Moreover, during group departures, individuals in the front emitted a higher frequency of vocalization than individuals in the rear. Sex and social centrality both had a significant influence on vocalizations. Social centrality indicates the degree of proximity relations between two individuals in a social network. Females and individuals with high social centrality emitted more sound in group movements. However, social rank and the number of relatives did not affect the emission of sound. These results suggest that the function of calls in collective movements relates to coordinating group movements. This study provides an insight into the association of acoustic communication with collective decision making.https://www.mdpi.com/2076-2615/12/16/2149Tibetan macaquescollective movementsvocal communicationgroup coordinationdecision makingsocial networks
spellingShingle Meng-Meng Chen
Yu-Heng Zhang
Yi-Mei Tai
Xi Wang
Individual Variation in the Use of Acoustic Signals to Coordinate Group Movements among Tibetan Macaques (<i>Macaca thibetana</i>)
Animals
Tibetan macaques
collective movements
vocal communication
group coordination
decision making
social networks
title Individual Variation in the Use of Acoustic Signals to Coordinate Group Movements among Tibetan Macaques (<i>Macaca thibetana</i>)
title_full Individual Variation in the Use of Acoustic Signals to Coordinate Group Movements among Tibetan Macaques (<i>Macaca thibetana</i>)
title_fullStr Individual Variation in the Use of Acoustic Signals to Coordinate Group Movements among Tibetan Macaques (<i>Macaca thibetana</i>)
title_full_unstemmed Individual Variation in the Use of Acoustic Signals to Coordinate Group Movements among Tibetan Macaques (<i>Macaca thibetana</i>)
title_short Individual Variation in the Use of Acoustic Signals to Coordinate Group Movements among Tibetan Macaques (<i>Macaca thibetana</i>)
title_sort individual variation in the use of acoustic signals to coordinate group movements among tibetan macaques i macaca thibetana i
topic Tibetan macaques
collective movements
vocal communication
group coordination
decision making
social networks
url https://www.mdpi.com/2076-2615/12/16/2149
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