Abstract
We quantitatively examined the differences in the size and proportion of the Japanese macaque (Macaca fuscata) by comparing the Early Jomon specimens from Torihama shell-midden, Fukui Prefecture and modern specimens from Fukui Prefecture. The purpose of this study was to explore the temporal change in the proportion and size of teeth of the Japanese macaques based on the quantified data. The result of measurements of lower premolars and molars demonstrated that sexual dimorphism was evident only among the modern specimens where the females were significantly smaller than males. The size of male Torihama specimens was within the range of the modern population, whereas the size of the female Torihama specimens was significantly larger than the modern female population. The proportional pattern of premolars and molars for male and female Torihama specimens also differed. The results may suggest a possible difference in the degree of size reduction between males and females since the last glacial period.
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Acknowledgements
We wish to thank Prof. Katsuhiko Amitani (Tsuruga Junior College) and Wakasa History and Folklore Museum, Fukui Prefecture, the Collection Committee of the Kyoto University Primate Research Institute (KUPRI) for the permission to work on the material. We are grateful to M. Takai and to the staffs of Systematics and Phylogeny Section and Morphology Section of KUPRI for many constructive suggestions for the present study. The study is supported by the Grant-in-Aid for Scientific Research (16405018 to M. Takai), and by the Grant for the Biodiversity Research of the 21st Century COE Program (A14 to Kyoto University).
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Morphometric analysis of mandibular cheek teeth from Torihama Shell-midden
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Anezaki, T., Hongo, H. & Shigehara, N. A morphometric analysis of the Japanese macaque (Macaca fuscata) mandibular cheek teeth from the Torihama Shell-midden, Early Jomon Period, Fukui Prefecture, Japan. Primates 47, 255–263 (2006). https://doi.org/10.1007/s10329-005-0161-9
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DOI: https://doi.org/10.1007/s10329-005-0161-9