Primate Research
Online ISSN : 1880-2117
Print ISSN : 0912-4047
ISSN-L : 0912-4047
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Volume 12, Issue 3
Displaying 1-5 of 5 articles from this issue
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  • Age change of molar wear in the Japanese macaque (Macaca fuscata fuscata)
    Hisao KATO
    1996 Volume 12 Issue 3 Pages 221-230
    Published: 1996
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.2354/psj.12.221
    JOURNAL FREE ACCESS
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    Age change of molar wear in the Japanese macaque (Macaca fuscata fuscata) was studied. Molar wear was graded into stages and categorically scored. Sum of wear scores were tabulated for each tooth type. Then scores of all molars were summed to obtain a total wear score. Wear scores were significantly correlated with age, although a detailed assessment of the pattern of wear rate was not possible with the present categorical system. In all molars, wear in males tended to be faster than that in females. This difference was statistically significant in both maxillary and mandibular second molars. Comparison among molar positions indicated significant differences in wear rate between the first or second and the third molars. Third molars tended to wear more slowly than the mesial molars although no difference in wear scores were detected between the third and the other molars after the relative age of approximately 13 years. The results of this study could be used as a standard for assessing wear rate and pattern in molars of the captive Japanese macaque.
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  • Distribution of Wild Japanese Macaques (Macaca fuscata) in Hyogo Prefecture
    Satoshi SHIMIZU, Shohei TAKEDA, Tadahiro KANAZAWA, Minoru ASAHI
    1996 Volume 12 Issue 3 Pages 231-240
    Published: 1996
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.2354/psj.12.231
    JOURNAL FREE ACCESS
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    The present distribution of Japanese macaques in Hyogo prefecture was examined in an analysis from the results of questionnaires. Japanense macaque groups in Hyogo prefecture were found to inhabit the same 5 of the 6 regions in previous investigations. The other region was the area monkeys inhabited before 1970, and did not inhabit in the 1970's, but were again found after the mid 1980's. The reason why monkey groups in that particular area were found again in recent years is as follows; monkeys were forced to stay in the western part of the forest due to the clearing a forest of the eastern part. Therefore, they were seldom seen in the 1970's. Eventually, they moved back to the original area and appeared in places people could easily find them. Over time, the agriculutural damage done by monkeys expanded. The reason being is that some farmers changed part of their rice field to crops that monkeys like to eat. The plantation and urbanization of mountain villages also contributed to the damage. In some of the areas monkey groups continuously inhabited, many were captured and a number of groups were suspected to have declined, but no extinction of local troop was recognized. The number of monkeys inhabiting Hyogo prefecture was estimated to be roughly around 800 to 1, 100.
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  • Towards an objective evaluation on the viability of Japanese macaque population
    T Oi, S Horino, S Miura
    1996 Volume 12 Issue 3 Pages 241-247
    Published: 1996
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.2354/psj.12.241
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1996 Volume 12 Issue 3 Pages 249-251
    Published: 1996
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.2354/psj.12.249
    JOURNAL FREE ACCESS
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  • Proceedings of the 12th Annual Meeting of PSJ
    1996 Volume 12 Issue 3 Pages 252-301
    Published: 1996
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.2354/psj.12.252
    JOURNAL FREE ACCESS
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