Sex differences in vocal structure in a callitrichid primate, Leontopithecus rosalia

J. J. Benz, J. A. French, D. W. Leger

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

Four types of calls (long calls, chirps, chucks, and trills) from Golden Lion Tamarins (Leontopithecus rosalia) were analyzed for sex differences in structure. Six or more acoustic variables were analyzed for each call type. One or more variables from each call category differed significantly between the sexes. In addition, discriminant function analyses were conducted on male vs. female data for each call type. Long calls, chirps, and chucks from males and females were quite discriminable, but trills were not. That these differences exist is surprising given that callitrichid primates are otherwise quite monomorphic in structure and behavior. Possible functions served by sex differences in call structure include group censusing or assessing the sex of transient individuals.

Original languageEnglish (US)
Pages (from-to)257-264
Number of pages8
JournalAmerican Journal of Primatology
Volume21
Issue number4
DOIs
StatePublished - 1990

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Keywords

  • acoustic variables
  • golden lion tamarins
  • vocalizations

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

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