Horbaly Haley E, Kenyhercz Michael W, Hubbe Mark, Steadman Dawnie W
Department of Anthropology, University of Tennessee Knoxville, 1621 Cumberland Avenue, 502 Strong Hall, Knoxville, TN, 37996.
Department of Defense POW/MIA Accounting Agency, Central Identification Laboratory, 590 Moffet Street, Bldg 4077, JBPHH, HI, 96853.
J Forensic Sci. 2019 Jan;64(1):52-57. doi: 10.1111/1556-4029.13850. Epub 2018 Jul 5.
Skeletal sexual dimorphism manifests as size or shape differences between males and females in a population. Certain dimorphic traits are used in sex estimation methods, and populational variation in the expression of these traits can result in inaccurate sex estimation. However, the underlying causes of variation in trait expression remain unclear. This study explores body size, which also exhibits sexual dimorphism, as a potential factor influencing trait expression. To test this, skeletons of 209 individuals of varying body size were analyzed, and morphological traits were scored according to the Walker (2008), Klales et al. (2012), and Rogers (1999) sex estimation methods. Statistical analyses found significant correlations between body size parameters and expression of traits, with stature explaining more relative variance in trait expression than body mass. However, the relationships are weak and few in number, suggesting that body size has a minimal impact on the expression of these morphological traits.
骨骼性二态性表现为特定人群中男性和女性之间的大小或形状差异。某些二态性特征被用于性别估计方法中，而这些特征表达的群体差异可能导致性别估计不准确。然而，特征表达变异的潜在原因仍不清楚。本研究探讨同样表现出性二态性的体型，作为影响特征表达的一个潜在因素。为了验证这一点，对209个体型各异的个体的骨骼进行了分析，并根据沃克（2008年）、克莱尔斯等人（2012年）以及罗杰斯（1999年）的性别估计方法对形态特征进行评分。统计分析发现体型参数与特征表达之间存在显著相关性，身高比体重能解释特征表达中更多的相对方差。然而，这些关系较弱且数量较少，表明体型对这些形态特征的表达影响极小。
