Figure 3 . Relationships between change in (a) flowering plant richness and pollinator richness and (b) flowering plant richness and pollinator abundance. The solid black line shows the predicted relationship and shaded areas indicate the 95% confidence intervals. Circles represent cases that investigated­­ flowering plant and pollinator diversity simultaneously, circle sizes are weighted by their variances (1/sqrt(vi)) and different colors represent different pollinator taxa (“mixed” means there was more than one pollinator order in that case study).