Sociality predicts orangutan vocal phenotype.
Journal
Nature ecology & evolution
ISSN: 2397-334X
Titre abrégé: Nat Ecol Evol
Pays: England
ID NLM: 101698577
Informations de publication
Date de publication:
05 2022
05 2022
Historique:
received:
13
08
2021
accepted:
02
02
2022
pubmed:
23
3
2022
medline:
12
5
2022
entrez:
22
3
2022
Statut:
ppublish
Résumé
In humans, individuals' social setting determines which and how language is acquired. Social seclusion experiments show that sociality also guides vocal development in songbirds and marmoset monkeys, but absence of similar great ape data has been interpreted as support to saltational notions for language origin, even if such laboratorial protocols are unethical with great apes. Here we characterize the repertoire entropy of orangutan individuals and show that in the wild, different degrees of sociality across populations are associated with different 'vocal personalities' in the form of distinct regimes of alarm call variants. In high-density populations, individuals are vocally more original and acoustically unpredictable but new call variants are short lived, whereas individuals in low-density populations are more conformative and acoustically consistent but also exhibit more complex call repertoires. Findings provide non-invasive evidence that sociality predicts vocal phenotype in a wild great ape. They prove false hypotheses that discredit great apes as having hardwired vocal development programmes and non-plastic vocal behaviour. Social settings mould vocal output in hominids besides humans.
Identifiants
pubmed: 35314786
doi: 10.1038/s41559-022-01689-z
pii: 10.1038/s41559-022-01689-z
pmc: PMC9085614
doi:
Types de publication
Journal Article
Research Support, U.S. Gov't, Non-P.H.S.
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
644-652Subventions
Organisme : Medical Research Council
ID : MR/T04229X/1
Pays : United Kingdom
Commentaires et corrections
Type : CommentIn
Informations de copyright
© 2022. The Author(s).
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