关键词: 川金丝猴, 等级, 攻击行为, 屈服行为

Abstract: From July 2002 to June 2003, we used focal animal sampling and all-occurrence recording to record the direction and number of occurrences of aggressive and submissive behaviors of 58 Sichuan snub-nosed monkeys from the west ridge troop in the Zhouzhi National Reserve of the Qinling Mountains. The data was then analyzed using the dominance index method. The results revealed that the resident male was the highest-ranking individual within the OMU(One-male unit), the adult females were second rank, then sub-adult females, and finally the juveniles. We also found that a female's rank in its OMU is unstable: an adult female's rank will rise after it gives birth. The rank order of the eight OMUs changed between the mating season and the birth season. The highest and lowest-ranking OMUs maintained their positions; while,
the remaining units shifted their ranking order between the mating season and birth season. Rank orders might shift due to changes in the degrees of cooperation within the OMUs.

Key words: Aggressive behavior, Dominance, Sichuan snub-nosed monkey(Rhinopithecus roxellana), Submissive behavior