An Overview of the Barbary Macaque, Macaca sylvanus, Vocal Repertoire

Abstract

This study provides an overview of the vocalizations of Barbary macaques, Macaca sylvanus. Spectrographic displays of calls are presented along with photographs of the accompanying facial gestures. We give a general description of the contexts in which the different calls are uttered, with special regard to the age and sex of the caller. The vocal repertoire of Barbary macaques mainly consists of screams, shrill barks, geckers, low-frequency pants and grunts, with gradation occurring within and between call types. The spectrograms document that typically, Barbary macaques produce series of several consecutive calls. The influence of habitat, social structure and phylogenetic descent on the morphology of the repertoire and call diversity are discussed in comparison to other species.

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