Figure 1. Comparison of mean annual temperature (MAT) of origin for seed source and planting locations within observed thermal niche of each species (GBIF 2024). Boxplots show the MAT (1981-2010 CHELSA database V.2.1) distribution throughout each species global native range (occurrences obtained from GBIF, cleaned for errors, and spatially thinned to 1km resolution). The black line is the median, with the grey filled region equal to 1.5 × the interquartile range. Whiskers represent the 25^th and 75^th percentile, and outliers are not shown for clarity. The red and blue points represent the MAT of origin for the seed source locations of the lowland and upland provenances respectively. The three coloured vertical lines represent the MAT at the common garden sites. Species are arranged in order of their mean thermal niche.