FIGURE 3 The current potential distribution map of Francois’ langur
3.5 Future changes in suitable habitat
Under future climate conditions (2021-2040, 2041-2060, 2061-2080, and
2081-2100) in the SSP245 climate scenario, the area of the potential
geographical distribution of Francois’ langur was predicted to decrease
compared to the current situation. Habitat suitability maps for future
climate models are shown in Figure 4. By 2021-2040, the high potential
suitable area for Francois’ langur would decrease by 76.73%. Similarly,
the moderately suitable area would decrease by 50.87% and the low
suitable area would decrease by 46.22%. By 2041-2060, however, the
highly, moderately and poorly suitable areas for Francois’ langur would
only decrease by 20.47%, 21.42% and 40.81% respectively, revealing an
increase in the suitable area for Francois’ langur compared to the
period of 2021-2040. By 2061-2080, the high suitable area for Francois’
langur would decrease by 83.46%, the medium suitable area would
decrease by 54.56% and the low suitable area would decrease by 47.39%.
A similar pattern was also confirmed for 2081-2100, where the highly,
moderately and poorly suitable areas for Francois’ langur would decrease
by 76.85%, 61.73% and 51.62% respectively (Figure 5).