Fig. 4: Global distribution of species-assemblage hydraulic metrics and their latitudinal patterns.

a, Mean-hydraulic risk represented as −HSM. b, HSM variance. c, Number of species with negative HSM values. The distribution of species-level values from which metrics are calculated for a sample of three representative pixels are shown in histograms in a. Lateral scatterplots show the distribution of pixel values. Trend lines for pixel values are shown for scatterplots by means of GAM.