Updated λ_R − ϵ plane, colour-coded by two different environmental indicators. The background in all panels shows a LOESS-smoothed version of the dots above. Left: η indicator computed using the FoF algorithm for all galaxies detected in groups. Middle: η indicator computed using the FoF algorithm for galaxies detected in groups with ten members or fewer. Right: Density contrast ($\stackrel{\sim }{f}$) estimator obtained from the Voronoi tessellation method. This figure corresponds to the updated version of Figure 8 in Muñoz López et al. (2024).