Extended Data Fig. 1: Visualizing richness change.
From: Accelerated increase in plant species richness on mountain summits is linked to warming
This conceptual figure shows the approach implemented in the main text to visualize richness change over time based on the raw data (Figs. 2, 3). a, The mean richness change per year (ΔSR/∆t = (SRt2 − SRt1)/(t2 − t1)) across all summits was calculated (Fig. 3). b, The mean richness change per year accumulates with time to yield absolute changes in species richness (black line in Fig. 2). c, d, Variability in the absolute change in species richness was visualized by randomly sampling ΔSR from all mountains available each year, but adding the s.d. within a region and year. The displayed range in Fig. 2 illustrates the 5th and 95th percentiles of the resulting richness change values from 1,000 runs (orange shading in Fig. 2). This approach reveals changes in variability among mountains over time while also showing overall variability for time steps where only a few summits were sampled (particularly in early time periods).
