Galaxy overdensity richness distributions, samples AGNL and QOL. The top panel refers to 0 ≤ z< 0.7, the middle panel to 0.7 ≤ z< 1, and the bottom panel to 1 ≤ z ≤ 2. The solid red line refers to the AGNL sample, the grey lines correspond to the 100 extractions of the QOL Control sample. The dashed black line is the richness distribution of the Control sample extraction corresponding to the median value of the KS probability value distribution.