Extended Data Table 6 Model evaluation for different time lags

From: Accelerated increase in plant species richness on mountain summits is linked to warming

  1. Linear mixed effects models (Gaussian family error distribution) analysing the relationship between average velocity of species richness changes and the change in potential explanatory variables (temperature, precipitation and nitrogen deposition). The implemented model formula was lmer(ΔSR/Δt ~ ΔT/∆t + ΔP/∆t + Naccum + richness + (1|mountain)). Explanatory variables were calculated as the mean value across a period before the survey. Within each new model, the focal explanatory variable implemented with a differing time lag (time between the period and survey; left column) was exchanged while the remaining variables were held constant. The analyses were performed with the same data as in Extended Data Table 3.
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