太行山猕猴髋骨异速增长和性别判定研究

目的是了解太行山猕猴髋骨性差特征及异速增长模式。太行山猕猴髋骨标本66例(雄21例,雌45例)。选择髋骨4个比值变量。数据分析采用SPSS 20.0。组间均值比较采用单因素方差分析。性别判别分析采用逐步判别法。结果表明:成年太行山猕猴大部分髋骨变量性差显著(P0.05)。根据髋骨变量的异速增长分析可以得到3种模式。回归模型检验有统计学意义(P<0.01)。用少量髋骨变量可以有效地识别性别,性别正确判别率是87.0%。结论:髋骨变量的性差与异速增长模式主要与雌性髋骨变量青春期异速增长有关,髋骨的形态特征是猕猴运动功能与生殖功能交互作用的结果。

Discriminant Analysis and Allometric Growth Pattern of Hip Bones in Rhesus Monkey from the Taihang Mountains

This research explored the sexual differences and allometric growth pattern of hip bones in rhesus macaques. Hip bone specimens were obtained from 66 skeletons of Macaca mulatta (21 male and 45 female). Four innominate variables were selected, and SPSS (Version 20.0) was used for statistical analysis. The one-way analysis of variance was used to compare the mean of each variable between the sexes, and the stepwise function analysis was used to establish discriminant functions that can be used to estimate sex for the hip bones. Most of measurements of hip bones of mature rhesus monkey were shown to be sexually dimorphic (P<0.01), while those of immature were not sexually dimorphic. Innominate bones of immature monkeys of both sexes resembled pelves of mature males. Three patterns of allometric growth in the innominate were tested in this study. Stepwise analysis showed that using the functions with only a single hip variable would effectively identify the sex of the adult monkey, with a correct classification rate of 87.0%. In the sample of Macaca mulatta pelves studied here, it is not possible to distinguish unfused male pelves from unfused female pelves. Sexual dimorphism in the pelvis of Macaca mulatta is related to the interaction between locomotory and obstetrical function, as the female pelvis acquires morphological features during postnatal development that differentiates them from mature male pelves and from immature pelves of both sexes.