Modeling individual vocal differences in group-living lemurs using vocal tract morphology
| Autor: | Olivier Friard, Marco Gamba, Cristina Giacoma, Livio Favaro, Alessandro Araldi, Valentina Matteucci |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Special Column: Animal Vocal Communication: Function Structures and Production Mechanisms Lemur Morphology (biology) formants Lemur catta 010603 evolutionary biology 01 natural sciences Article ring-tailed lemur indexical cues Guest Editors: Maxime Garcia Enes Lab Neuro-Psi CNRS UMR 9197 Université Lyon/Saint-Etienne France Livio FAVARO Dipartimento di Scienze della Vita e Biologia dei Sistemi Università degli Studi di Torino Italy biology.animal otorhinolaryngologic diseases 0501 psychology and cognitive sciences 050102 behavioral science & comparative psychology Communication biology business.industry 05 social sciences nasal resonance respiratory system biology.organism_classification Variation (linguistics) Formant Social animal Animal Science and Zoology Optimal distinctiveness theory business Vocal tract |
| Zdroj: | Current Zoology |
| Popis: | Vocal individuality is widespread in social animals. Individual variation in vocalizations is a prerequisite for discriminating among conspecifics and may have facilitated the evolution of large complex societies. Ring-tailed lemurs Lemur catta live in relatively large social groups, have conspicuous vocal repertoires, and their species-specific utterances can be interpreted in light of source-filter theory of vocal production. Indeed, their utterances allow individual discrimination and even recognition thanks to the resonance frequencies of the vocal tract. The purpose of this study is to determine which distinctive vocal features can be derived from the morphology of the upper vocal tract. To accomplish this, we built computational models derived from anatomical measurements collected on lemur cadavers and compared the results with the spectrographic output of vocalizations recorded from ex situ live individuals. Our results demonstrate that the morphological variation of the ring-tailed lemur vocal tract explains individual distinctiveness of their species-specific utterances. We also provide further evidence that vocal tract modeling is a powerful tool for studying the vocal output of non-human primates. |
| Databáze: | OpenAIRE |
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