Benz J J, French J A, Leger D W
University of Nebraska-Lincoln.
University of Nebraska at Omaha.
Am J Primatol. 1990;21(4):257-264. doi: 10.1002/ajp.1350210402.
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.
对金狮狨（Leontopithecus rosalia）的四种叫声（长叫、啁啾声、咯咯声和颤音）进行了结构上的性别差异分析。对每种叫声类型分析了六个或更多的声学变量。每个叫声类别中的一个或多个变量在性别之间存在显著差异。此外，对每种叫声类型的雄性与雌性数据进行了判别函数分析。雄性和雌性的长叫、啁啾声和咯咯声很容易区分，但颤音则不然。考虑到绢毛猴灵长类动物在结构和行为上其他方面相当单一，这些差异的存在令人惊讶。叫声结构中的性别差异可能具有的功能包括群体普查或评估外来个体的性别。
