勝山ニホンザル集団での出産観察と母親行動に関する事例報告  [in Japanese] Case Reports on Parturition and Maternal Behavior in a Free-Ranging Group of Japanese Monkeys at Katsuyama  [in Japanese]

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Abstract

We reported one case of parturition behavior and five other cases of maternal behaviors which were rarely observed in a free-ranging group of Japanese monkeys (<i>Macaca fuscata</i>). An eight-year-old female spent more than 3 hours alone before delivery and almost 2 hours afterwards, without being approached by any other group members. The frequency and duration of constractions gradually increased, and the female frequently touched her vulva and perineal region with the fingers of her hand, as the time for delivery grew near. She started to approach other group members about 2 hours after the delivery.<br>A nine-year-old female did not hold her first newborn to her ventrum after parturition, but walked bipedally, grasping the newborn with both hands. These inappropriate maternal behaviors disappeared the following day. An 11-year-old female carried her newborn ventrally and her yearling dorsally at the same time. This simultaneous carrying of two offspring was recorded for only the first five days after the birth of the newborn. Two other females allowed their one-year-old offspring to nurse after their newborn infant died within two weeks of the infant's life. Moreover, a 13-year-old multiparous female with a four-week-old newborn adopted a week-old newborn and took care of both in the same manner.

Journal

  • Primate Research

    Primate Research 20(1), 31-43, 2004-06-30

    Primate Society of Japan

References:  39

Cited by:  2

Codes

  • NII Article ID (NAID)
    10013315171
  • NII NACSIS-CAT ID (NCID)
    AN10080557
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09124047
  • NDL Article ID
    7026708
  • NDL Source Classification
    ZR4(科学技術--生物学--動物)
  • NDL Call No.
    Z18-1898
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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