台湾山地同胞の頭・顔面部の成長における集団間比較

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  • Comparative Analysis on Growth of Head and Face in Some Taiwan Aborigines

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With use of the Anthropometric measurements taken from Atayal, Saisiyat, Bunun and Paiwan tribes residing along the central mountain range in Taiwan, cluster analysis (group averaging method) and analysis of main coordinates were made and geographical variations among Taiwan aborigines were investigated by comparing head and face growth. The results were as follows : 1. Group difference and differentiation of the mountain brethren 1) Cluster analysis showed formation of two main clusters on the south and north of the central mountain rage in Taiwan of Atayal and Saisiyat tribe group and Paiwan and Rukai tribe group, each with mutually incompatible features. At the geographical midpoint between the two clusters was a subcluster of Bunun tribe with morphology which can be included in either. These tendencies did not change with aging. 2) Geographical cline extending north and south along the central mountain range was thought to exist. Formation of this geographical cline was attributed to the effect of the Mongoloid of China and Northeast Asianlineage on Deutero Malayide group. 2. Comparison between adult and 15-year-old group 1) Comparison of the results from the cluster analysis of the adult and 15-year-old groups showed a similar tendency, and formation of two main clusters of Saisiyat and Bunun tribe group and Rukai and Paiwan tribe group was seen. Atayal tribe formed a subcluster with Saisiyat and Bunun tribe group. This tendency became more evident when developed two dimensionally by the analysis of major coordinates. 2) Inclusion of measurements obtained at the growth stage in the examination was considered to result in more accurate determination than making judgment by values for adults.

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