Gas fragmentation rate as a function of both the maximum energy injection scale, l_max, which we assume is equal to the disk scale-height, and the growth rate of GMCs (Eq. (14)). Each coloured box shown in the diagram represents the gas fragmentation rate for a specific stellar mass bin as indicated by the labels at the lower right corner of each box. The mass bins range from M_⋆ = 10^9.0 M_⊙ to 10^11.5 M_⊙. The limits of each box encompass the 15% and 85% percentiles of the distribution for each mass bin. Coloured points within each box indicate the value of the median of the distribution. The regions shown are for modelled galaxies at z = 2.1.