Ranging behavior of Macaca thibetana at Mt. Emei, China

Food handouts from visitors to Mt. Emei, in the People's Republic of China, have considerably increased the diversity of food available to an indigenous population of Macaca thibetana . Some 43% of the feeding time was spent at the trail area frequented by tourists. The average size of the home range per group was 3 km super(2); the average population density for the entire range was 13/km super(2), and the biomass was 109 kg/km super(2). The population may be growing, a possibility that is also supported by previous analyses using data on group composition.