Extended Data Table 5 Model evaluation for different explanatory variables and time periods

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)). Within each new model, the focal variable (left column) was exchanged, while the remaining variables were held constant. Variables were calculated as the mean value across a period before the survey (Period). The analyses were performed with the same data as in Extended Data Table 3.