The VIMOS VLT Deep Survey

We present the first measurements of the Probability Distribution Function (PDF) of galaxy fluctuations in the four-passes, first-epoch VIMOSVLT Deep Survey (VVDS) cone, covering 0.4×0.4 deg between 0.4 5 h −1 Mpc. By subdividing the sample according to galaxy luminosity and colors, we also show that: iv) brighter galaxies are more strongly biased than less luminous ones at every redshift and the dependence of biasing on luminosity at z ∼ 0. 8i s in good agreement with what is observed in the local Universe; v) red objects are systematically more biased than blue objects at all cosmic epochs investigated, but the relative bias between red and blue objects is constant as a function of redshift in the interval 0.7 < z < 1.5, and its value (b rel ∼ 1.4) is similar to what is found at z ∼ 0.