Sample sizes (A) and Capwire point estimates of number of colonies (B) of the different bee species in the different sites.

*mean of sites with species present only.(Site names in bold are those with a total of Oilseed rape and adjacent field together). S = area of focal oilseed rape field, P = % arable land in surrounding landscape, and D = distance to nearest sampled oilseed rape field, measured from the centroid of the oilseed rape field.