Post D, Goldstein S, Melnick D
Am J Phys Anthropol. 1978 Nov;49(4):533-43. doi: 10.1002/ajpa.1330490413.
Odontometric, dietary, and body weight data were collected for a sample of 29 cercopithecoid species. Each species was assigned to one of three diet classes (frugivore, folivore, and omnivore) , and indices were constructed to estimate the extent of sexual dimorphism in body weight, postcanine area and incisor width in each of the species. Analysis proceeded by means of the analysis of covariance with the dental dimorphism indices as the dependent variables. Body weight dimorphism was not significantly related to either measure of dental dimorphism across the sample, and an analysis by diet alone revealed that omnivores show significantly higher dental dimorphism than do either of the other two diet classes. The relationship between this result and theories of sexual subniche differentiation is discussed.
收集了29种类人猿物种样本的牙齿测量、饮食和体重数据。每个物种被归入三个饮食类别之一（食果动物、食叶动物和杂食动物），并构建指数来估计每个物种体重、犬齿后区域和门齿宽度的两性异形程度。以牙齿异形指数作为因变量，通过协方差分析进行分析。在整个样本中，体重异形与任何一种牙齿异形测量均无显著相关性，仅按饮食进行的分析表明，杂食动物的牙齿异形程度显著高于其他两个饮食类别中的任何一个。讨论了这一结果与性亚生态位分化理论之间的关系。
