A newborn infant chimpanzee snatched and cannibalized immediately after birth: Implications for “maternity leave” in wild chimpanzees
A newborn infant chimpanzee snatched and cannibalized immediately after birth: Implications for “maternity leave” in wild chimpanzees
复制标题
刚出生的黑猩猩婴儿出生后立即被抢走并吃掉：对野生黑猩猩“产假”的影响
DOI：
10.1002/ajpa.23327
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发表时间：
2018
影响因子：
2.8
通讯作者：
Nakamura Mitsuo
中科院分区：
文献类型：
--
作者：
Nishie H;Nakamura Mitsuo
本研究报告了坦桑尼亚马哈尔山脉首次观察到的野生黑猩猩幼崽在分娩后立即被抢走，随后被一只成年雄性吃掉的案例。我们证明了“产假”从长期的数据从Mahale M组，并建议它的功能作为一个可能的反策略的母亲黑猩猩对风险的birthcide后不久delivery.Materials and MethodsThe本研究的主题是M组黑猩猩在Mahale山脉，坦桑尼亚。2014年12月2日观察到食人事件。我们使用1990年至2010年期间M组黑猩猩的长期日常出勤记录来计算“产假”的长度，在此期间，黑猩猩母亲倾向于隐藏自己并独自分娩。ResultsWe观察到野生黑猩猩组中非常罕见的分娩病例。一只雌性黑猩猩在其他成员面前分娩，一只成年雄性黑猩猩在新生儿出生后立即抓住并吃掉了它。使用长期的数据，我们证明，“产假”的长度比成年和青少年雌性黑猩猩的nonmaternal leave.DiscussionWe认为，这种食人事件发生后立即出生，由于完全缺乏“产假”的母亲黑猩猩的受害者，谁可能缺乏足够的经验，分娩。我们认为，准妈妈的“产假”可能是一种可能的应对策略，防止产后不久的自杀。
ObjectivesThis study reports on the first observed case of a wild chimpanzee infant being snatched immediately after delivery and consequently cannibalized by an adult male in the Mahale Mountains, Tanzania. We demonstrate “maternity leave” from long‐term data from the Mahale M group and suggest that it functions as a possible counterstrategy of mother chimpanzees against the risk of infanticide soon after delivery.Materials and methodsThe subjects of this study were the M group chimpanzees at Mahale Mountains, Tanzania. The case of cannibalism was observed on December 2, 2014. We used the long‐term daily attendance record of the M group chimpanzees between 1990 and 2010 to calculate the lengths of “maternity leave,” a perinatal period during which a mother chimpanzee tends to hide herself and gives birth alone.ResultsWe observed a very rare case of delivery in a wild chimpanzee group. A female chimpanzee gave birth in front of other members, and an adult male snatched and cannibalized the newborn infant immediately after birth. Using the long‐term data, we demonstrate that the length of “maternity leave” is longer than that of nonmaternity leave among adult and adolescent female chimpanzees.DiscussionWe argue that this cannibalism event immediately after birth occurred due to the complete lack of “maternity leave” of the mother chimpanzee of the victim, who might lack enough experience of delivery. We suggest that “maternity leave” taken by expecting mothers may function as a possible counterstrategy against infanticide soon after delivery.