The projected effect on insects, vertebrates, and plants of limiting global warming to 1.5°C rather than 2°C

“…4). This is in line with results by Warren et al . (2018), who found that projected future range losses of more than 50% occur in 8 - 52% of considered reptile species by 2100 depending on the climate scenario considered, although this study included only a fraction of all reptile species (N=1850) and no species dispersal was considered.…”

“…Furthermore, most reptiles also showed a strong decline in range overlap, which was consistent across all three groups (Figure 4). This is in line with results published by Warren et al (2018), who found that projected future range losses of >50% occur in 8–52% of considered reptile species by 2100 depending on the climate scenario considered, although this study included only a fraction of all reptile species ( n = 1850) and no species dispersal was considered.…”

“…However, for 33 species (26% of our sample) the probability of undergoing niche shrink was higher than the probabilities of undergoing niche stability, shift, or expansion under the most pessimistic scenario, and 29 of these species remained in this condition even under the most optimistic scenario (SSP 1-1.9*). This means that although mountain mammals might be on average less in peril than other mammals, which is consistent with results of some other studies (e.g., Trisos et al, 2020;Warren et al, 2018), there are important exceptions of species facing high risk. In addition, even the achievement of global climate targets will not be sufficient to prevent several species from facing high risk of climate niche shrink.…”