太行山猕猴下颌的生物力学研究

摘要

By using Shao Xiangqings methods(1985), a measurement ,statistics and analysis of some mandibular variables of Macaca mulatta in Taihang Mountains was made.Furthermore, biomechanical scaling and allometric analysis was carried out ,and the results showed,on the one hand, the mandibular variables are highly sexual different. The length of mandible in male is longer than in female, and the length from posterior border of the mandibular condyle to the central section of M1 and to the under-minipeak of M3, the height of the mandibular branch is relative smaller in male than in female. On the other hand. the length and width of mandibular condyle, the height and width of mandibular body and the union length of mandible are strengthened in male then in female, thus ,the ruminate forces get increase .This is closely related with the ecological strategy in macaca mulatta in Taihang Mountains. There has a comparison among the results of this paper to the rhesus macaque in other area in China, and showed that there were evident differences among them.%采用定点方法，对太行山猕猴下颌骨有关变量作了测量、统计和分析。通过对太行山猕猴下颌生物力学、异速生长的研究表明，雄性下颌相对较长，与此有关的生物力学特点是下颌髁后缘至M1近中侧长、下颌髁后缘至M3下次小尖长和下颌支高等阻力臂减小，而下颌髁长、下颌髁宽、下颌体高Ⅱ、下颌体宽Ⅱ、下颌联合长等变量则增强，使咀嚼力增加。这些特点均与其生态对策密切相关。研究结果还与有关材料进行了比较，表明太行山猕猴与国内其他地区的猕猴存在着明显差异。