Distance of the 5^th neighbour, used as a proxy for galaxy clustering. We considered all sources with photometric redshift consistent with the photometric redshift of HELM galaxies, within 1σ uncertainty. We considered the photometric redshift of HELM sources to convert from an angular to a physical scale. Histograms are shown for the control sample of non-dusty dwarfs (filled dark blue histogram), for the HELM-1σ sample (dashed green histogram), for the HELM-2σ sample (dash-dotted yellow histogram), and for the HELM-3σ sample (solid orange histogram). All samples are limited to z < 1. Coloured arrows indicate the median of the three samples and are slightly shifted vertically for clarity.