Vocal individuality and rhythm in male and female duet contributions of a nonhuman primate
作者机构：Bioacoustics Research ProgramCornell Lab of OrnithologyCornell UniversityIthacaNY14850USA Faculty of AgricultureSam Ratulangi UniversityManadoIndonesia
出 版 物：《Current Zoology》 (动物学报（英文版）)
年 卷 期：2020年第66卷第2期
页 面：173-186页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 071002[理学-动物学]
主 题：primate vocal communication rhythm vocal plasticity vocal individuality
摘 要：Duetting,or the stereotypical,repeated and often coordinated vocalizations between 2 individuals arose independently multiple times in the Order *** primate species,there exists substantial variation in terms of timing,degree of overlap,and sex-specificity of duet *** is increasing evidence that primates can modify the timing of their duet contributions relative to their partner,and this vocal flexibility may have been an important precursor to the evolution of human ***,we present the results of a fine-scale analysis of Gursky’s spectral tarsier Tarsius spectrumgurskyae duet phrases recorded in North Sulawesi,***,we aimed to investigate individual-level variation in the female and male contributions to the duet,quantify individual-and pair-level differences in duet timing,and measure temporal precision of duetting individuals relative to their *** were able to classify female duet phrases to the correct individual with an 80%accuracy using support vector machines,whereas our classification accuracy for males was lower at 64%.Females were more variable than males in terms of timing between *** tarsier phrases exhibited some degree of overlap between callers,and tarsiers exhibited high temporal precision in their note output relative to their *** provide evidence that duetting tarsier individuals can modify their note output relative to their duetting partner,and these results support the idea that flexibility in vocal exchanges—a precursor to human language—evolved early in the primate lineage and long before the emergence of modern humans.
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