Top panel: real-space normalised power spectra obtained for each environment α ∈ {v, w, f, n} compared to the one from all dark-matter particles in black. Solid lines are the average over the N_fid = 7000 fiducial simulations and the shaded areas are the 1-σ intervals. The grey area depicts the range of k >  k_max excluded from the analysis. In the bottom panel are found the ratios between the averaged normalised spectra in each environment and the matter–matter spectrum (black from the top panel).