Postnatal Growth and Sexual Dimorphism in the Skull of the Japanese Macaque(Macaca fuscata) (Morphology of the Japanese Macaque<特集>)

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概要

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• In order to know the relationship between postnatal growth and sexual dimorphism in the cranium of the Japanese macaque, 139 sex-known skulls of the species, which were graded into the nine "dental ages" by means of the dental eruption sequence, were measured on 17 craniometric items. The number of the measurements showing significant sex differences, all of which favored males, increased from two in infant sample (dental age 2) to 14 in adult sample (dental age 9). However, the increase was not monotonic. In dental ages 4 and 5, no linear dimension showed significant sex differences. Furthermore, the females exceeded the males in 47.1% of the cranial dimensions at dental age 4 ranging approximately 2.75 to 3.5 years, which was considered to be the period of the female adolescent growth spurt in the cranial dimensions.

• 日本人類学会の論文

著者

• MOURI TOSHIO

  Section of Morphology, Department of Evolution and Phylogeny, Primate Research Institute, Kyoto University

関連論文

• Postnatal Growth and Sexual Dimorphism in the Skull of the Japanese Macaque(Macaca fuscata) (Morphology of the Japanese Macaque)

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