Photoemission spectra of the perovskites SrVO3, SrRuO3 and LaVO3
indicate that Coulomb correlations at the surface are stronger
than in the bulk. Using the multi-orbital dynamical mean field
theory we show that the reduced coordination of surface atoms
leads to a shift of spectral weight from the coherent peak near
EF to the lower and upper Hubbard bands. The possibility of
separate surface/bulk metal-insulator transitions in Ca,LaVO3
is discussed. No evidence is found for orbital-dependent metal-insulator transitions in the layer ruthenate Ca,Sr2RuO4.