A Preliminary Analysis on Population Viability for Black-and-white Snub-nosed Monkeys (Rhinopithecus bieti)

Population dynamics of black-and-white snub-nosed monkeys (Rhinopithecus bieti) are simulated by simulation model Vortex 9.42 on the basis of their relative parameters.All subpopulation sizes can increase during the period of next 100 years without inbreeding depression and poaching,but Pantiange and Baijixun subpopulations which is smaller may extinct with possibilities of 3% and 6%. When inbreeding depression and poaching are considered,only sizes of 5 subpopulations (Xiaochangdu,Wuyapuya,Jinsichang,Fuheshan and Gehuaqing) increase,3 (Cikatong,Gemorong and Xiangguqing) maintain stable,and the other 5 (Milaka,Bamei,Longmashan,Pantiange and Baijixun) decline.Population size of subpopulations with larger environmental capacity can increase faster when other parameters are close to the other subpopulations.Therefore,habitat protect should be emphasized for the long-term survival of the species.It is important to stop poaching because it has negative impacts on meta-populations.Inbreeding rate increases with time and smaller population size,it also has negative influences on the long term survival of the species.