Fig. 4 Impacts of climate warming on developmental success of oviparous and viviparous squamates. (a) Mean developmental success of oviparous embryos in 1980-2000; (b) change in developmental success of oviparous embryos (2080-2100 minus 1980-2000); (c) mean developmental success of viviparous embryos in 1980-2000; (d) change in developmental success of viviparous embryos (2080-2100 minus 1980-2000). Grey color in a and c indicates areas with zero developmental success in all years of the period 1980-2000, whereas grey color in b and d indicates areas with zero developmental success in all years among 2080-2100 and 1980-2000.