Extended Data Fig. 4: Correlation scatter plots of iNaturalist and sPlotOpen trait maps.
From: Citizen science plant observations encode global trait patterns
Scatter plots of sPlotOpen map pixel values plotted against the respective iNaturalist map pixel values for all 18 traits at a 2° spatial resolution. Correlation quantified using a weighted correlation coefficient (r weighted by grid cell area). Trait values are ln-transformed, 1:1 line is displayed in dotted grey, and SMA regression slope in red. For clarity, the secondary y axis on the right shows the raw trait values marked on a log scale, which correspond to the ln-transformed values on the left. Plot extents are the 0.01 and 0.99 quantiles of the data.
