Leutenegger W
Folia Primatol (Basel). 1982;37(3-4):163-76. doi: 10.1159/000156031.
Among primates sexual dimorphism in both body weight and canine size increases exponentially with increasing body size. This suggests that a full explanation of the variance in sexual dimorphism can only be attained if, in addition to sexual selection, parental investment, and various ecological factors, the influence of body size is taken into account. Positive allometry in both body weight dimorphism and canine size dimorphism is demonstrated to be associated with polygyny. In monogamous species the two dimorphisms not only remain constant throughout the size range but actually are minimal or lacking at any given body size.
在灵长类动物中,体重和犬齿大小的两性异形都随着体型的增大而呈指数增长。这表明,要全面解释两性异形的差异,除了性选择、亲代投资和各种生态因素外,还必须考虑体型的影响。体重异形和犬齿大小异形的正向异速生长被证明与一夫多妻制有关。在一夫一妻制物种中,这两种异形不仅在整个体型范围内保持不变,而且在任何给定体型下实际上都是最小的或不存在的。