关键词: 猕猴, 种群结构, 生命表

Abstract: The population structure of Rhesus monkey(Macaca mulatta)was surveyed at Nanwan Peninsula of Hainan Island by field observation from 1981 to 1987．Nanwan Natural Reserve of Rare Animals was founded in 1965．There were about 100 monkeys in five groups at that time and by the end of 1984，the population has increased almost 10 times up to about 930 animals in nineteen groups．The population growth rate is 12.7% betwen 1965 to 1984.The size of the monkey group ranges from fifteen to sixty members,similar to the groups living in the tropic or sub—trapic rain forests of Yunnan，Guangxi and Guizhou．The number of adult female rhesus mon keys decides the Dependence Ratio (D .R.) of social group，and relation between them is negative.When the male monkeys reach two of three years of age， they have to leave the natal group and become so1itary．The sexual ratio of female to male is low in infants and youths，and heigher in adults．The variance of sexual ratio in infants and youths is larger than that in adults．In this paper,the diagrammatic life table of female rhesus monkey was established．

Key words: Rhesus monkey, Population struture, Life table