Individuality in a contact call of the ringtailed lemur (Lemur catta)

A vocalization of the ringtailed lemur (Lemur catta) was examined for individual differences according to several temporal‐ and frequency‐dependent variables. Vocalizations were tape recorded at the Duke University Primate Center (Durham, NC) and spectrographically analyzed. Significant differences were found in pair‐wise comparisons of call structure among the study subjects, thus providing the physical basis for individual discrimination. A separate analysis comparing degree of kinship and vocal similarity revealed a positive but nonsignificant correlation between these two variables. This study represents an initial examination of vocal individuality in prosimian primates.

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