Extended Data Fig. 7: The effect of extreme drought on species stability and species asynchrony.
From: Contrasting drought sensitivity of Eurasian and North American grasslands
a, species stability, and b, species asynchrony. Species stability was calculated as average population stability (the interannual mean cover divided by its interannual standard deviation) across species in each plot. Species asynchrony compared the sum of the variance of individual species with the variance of the aggregated community in each plot. Center line, lower and upper limits of box, and whiskers indicated median, lower and upper quartiles, and 1.5 × interquartile range, respectively. Outliers were not shown. In Eurasian grasslands, n = 36, and in North American grasslands, n = 60, for both species stability and species asynchrony. Different uppercase and lowercase letters indicate significant differences between treatments, which were assessed by Tukey’s HSD tests (two-sided).
