Ordination plots for communities of bees and wasps along the E4 in Sollentuna, where a shows the result for the analysis of the whole community and b the result for the analysis where the large species (>16 mm) were excluded. Grey small numbers refer to different species (Suppl. material 1) and black larger text shows the sites and the two explanatory variables (eastern or western side of the road, and the north-south gradient). To improve visualization the species are plotted with a small scatter.