Upper panel: average degree of polarization as a function of the cluster distance, middle panel: spectral index between 6 and 20 cm as a function of the mean 6 cm total power surface brightness, lower panel: HI deficiency as a function of the FIR/radio ratio based on Spitzer 70 μm flux densities. The vertical lines represent the mean and a scatter of 0.2 dex. Red: galaxies experiencing ram pressure stripping, blue: galaxies experiencing a tidal interaction, green: galaxies experiencing a tidal interaction and ram pressure stripping, orange: galaxies with Hi envelopes, black: non-interacting.