作者: Yukio Takahata , Shigeru Suzuki , Naobi Okayasu , David Hill
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摘要: A wild Japanese macaque troop decreased in size because the birth rate dropped and infant mortality increased. In 1989 mating season, last male left troop, remaining two females joined a neighboring troop. Thus, ceased to exist as an independent lower limit may exist, below which cannot effectively defend its range, forcing join larger © 1994 Wiley-Liss, Inc.