FIGURE 5 Suitable habitat areas of Francois’ langur in all different periods
3.6 The centroid distribution shifts
The change in the potential distribution of Francois’ langur from 2021 to 2100 is shown in Figure 6. These models predicted that future global change would promote the contraction of the potentially suitable habitats for Francois’ langur, with the total suitable habitats decreasing. In particular, most of the suitable habitat in Chongqing and Guizhou would contract sharply. Francois’ langur would expand slightly in southwestern Guangxi and western Chongqing. The potential core distribution of Francois’ langur would move southeast from southern Guizhou to northern Guangxi under future climate conditions. Furthermore, the distance of the centroid shifts were 109.43km, 145.99km, 82.26km, and 227.09km in 2021-2040, 2041-2060, 2061-2080, and 2081-2100, respectively, compared to the current (Figure 7).