关键词: 猕猴, 性比, 年龄结构, 种群, 性二型

Abstract: The age and body weight of Macaca mulatta had been judged through the measuring body weight and observing tooth sequence and teeth wear method.These Macaca mulatta (670)belongs to 23 populations,were captured from Jingdong County,Zhenyuan County and Ninglang County of Yunnan Province from 2004 to 2010.The composition of population age,sex proportion and the difference of body weight were investigated. Results showed that (1)sex ratio (♂:♀)of Macaca mulatta populations in Jingdong, Zhenyuan, Ninglang were 1∶ 1. 21,1∶ 1. 55,1∶ 1. 52,respectively; (2) more than 80% of the Macaca mulatta population were composed by juvenile,young and adult groups,which indicated the population is in the developing stage;(3)sexual dimorphism phenomenon was showed in adult group,the body weight of males was significantly higher than females (P < 0.01),especially in Ninglang regions where significantly higher than other two counties (P < 0.01). These three regions are at a higher fertility,showing a trend of development for Macaca mulatta in Yunnan resources protection and rational development and utilization to provide some basis,but also for understanding population structure and Yunnan wild Macaca mulatta growth and development law,the establishment of artificial breeding ofthe different regions (species,subspecies)Macaca mulatta germplasm characteristics database and further studies provide data to support the foundation.

Key words: Age composition, Macaca mulatta, Population, Sex ratio, Sexual dimorphism