Fig. 2: Correlations between stabilizing niche and average fitness differences and complementarity and selection effects.

Correlations are shown for the three functions considered, under the two contrasting environmental conditions (control climate, drought). Correlations between complementarity (blue) and selection (orange) and niche are fitness differences are shown in panels a and b. They are also shown with the two components of fitness differences, the demographic ratio (c) and the competitive response ratio (d). Significant correlations following a two-sided test are marked with an asterisk. To assess the degree of statistical significance while controlling for false discovery rate, we performed Benjamini–Hochberg corrections on raw P values for multiple comparisons (n = 24 comparisons per species difference evaluated).