Redshift (a), SFR (b), and M_⋆ (c) distributions of galaxies in the ALPINE survey (orange) and galaxies in our final sample (blue), drawn from ALPINE and used in this work (see Sect. 3.1.2). For comparison, in panels b and c we show the SFR and M_⋆ distributions of all COSMOS galaxies with photometric redshift in the ALPINE range z = [4.4 − 5.8] (from Laigle et al. 2016). The gap in the redshift distribution is due to the original ALPINE sample selection, tailored to avoid a prominent atmospheric absorption at ∼325 GHz in ALMA band 7. The black dashed lines in panels b and c represent the median SFR and M_star of galaxies in our ALPINE-drawn sample.