Second-order moments of the mean biasing functions shown in Fig. 7. Left panels: moment . Right panels: non-linear parameter . The cell size is R = 6h^-1 Mpc . Error bars indicate 1σ scatter from the mocks. The redshift ranges and colour code are the same as in Fig. 7. Magnitude cuts are indicated in the plots. All values were computed assuming σ₈ = 0.9. The horizontal dashed line is plotted for reference and represents the case of no bias (left plot) and linear bias (right panels). Large filled symbols refer to measurements performed at δ_MAX, and small, open symbols refer to estimates at .