Journal article
Selection for acoustic individuality within the vocal repertoire of wild chimpanzees
International journal of primatology, Vol.17(4), pp.569-583
08/1996
DOI: 10.1007/BF02735192
Abstract
Individual primates typically produce acoustically distinct calls. To investigate the factors that facilitate the evolution of individual vocal signatures, we examined two components of the call repertoire of chimpanzees: the pant hoot and pant grunt. Pant hoots are long-distance signals whose recipients can be several hundred meters away, while pant grunts are short-range calls given to conspecifics within close visual range. Given their markedly different contexts of emission, we predicted that natural selection would favor the elaboration of individually distinctive acoustic features in pant hoots compared with pant grunts. Analyses of nine acoustic features revealed that pant hoots are more stereotyped within-individuals and variable between-individuals than pant grunts. These data are consistent with the hypothesis that selection may act to encode varying degrees of individuality in different components of the vocal repertoire of a single species.
Details
- Title: Subtitle
- Selection for acoustic individuality within the vocal repertoire of wild chimpanzees
- Creators
- John C MitaniJulie Gros-LouisJoseph M Macedonia
- Resource Type
- Journal article
- Publication Details
- International journal of primatology, Vol.17(4), pp.569-583
- DOI
- 10.1007/BF02735192
- ISSN
- 0164-0291
- eISSN
- 1573-8604
- Language
- English
- Date published
- 08/1996
- Academic Unit
- Psychological and Brain Sciences
- Record Identifier
- 9984213458302771
Metrics
2 Record Views