MASSIV selection in the [O   ii]λ3727 flux [10^-17 erg s^-1 cm^-2] vs. equivalent width [Å] plane (see Contini et al. 2012, for details). Red squares are the VVDS sources at 0.94 < z < 1.5 with individual  [O   ii]λ3727 line measurement in the VVDS-Wide 14 h (top-left), VVDS-Wide 22 h (top-right), VVDS-Deep (bottom-left), and VVDS-Ultradeep surveys (bottom-right). The dashed lines mark the selection of MASSIV star-forming galaxies. White dots are those VVDS sources that fulfil the MASSIV selection. Green pentagons are the MASSIV galaxies observed with SINFONI/VLT. (A colour version of this plot is available at the electronic edition.)