3.4 Analysis of future habitat changes
The areas and proportions of the four habitats of B. gargarizansby 2050 and 2070 are shown in the Table S7. Compared with the current
distribution, the future suitable habitat of B. gargarizans will
be reduced in 2050, and the ranges of highly suitable habitat, medium
suitable habitat, poorly suitable habitat are -1.3 ~ 0,
-3.41 ~ -0.68, and -3.98 ~ 1.32, and the
mean values are -0.72, -2.43, and -1.42 respectively. The suitable
habitat of B. gargarizans will shrink further in 2070, and the
ranges of highly suitable habitat, medium suitable habitat, poorly
suitable habitat are -1.42 ~ -0.37, -3.71
~ -1.59, and -3.94 ~ -0.03, and the mean
values are -0.93, -2.71, -2.04 respectively(Fig.4). And the overall
change trend and degree of suitable habitats of B. gargarizans in
China is shown in Fig.5 and Table S8. In addition, the potential
distribution area of Chinese toad in the future shows a trend of
fragmentation, which is gradually serious over time, and this trend is
related to RCPs to a certain extent (RCPS8.5 is the most serious)(Fig.
S1)