Table 1:

Reference spectral types and galactic population models used in this work.

Spectral type	Population (%)			u-r
	no ev.	ref.	cons.
-Early-type
BCG	4.3	4.0	4.2	-	0.12
E/S0	65.4	61.5	63.3	-	0.12
(Tot. early-type)	(69.7)	(65.5)	(67.5)
-Late-type
Sa	4.4	5.1	6.5	>2.2	2.36
Sb	9.6	10.7	11.7	1.8-2.2	13.82
Sc	15.8	18.2	14.1	1.0-1.8	33.80
Starburst	0.5	0.5	0.2	<1.0	73.16
(Tot. late-type)	(30.3)	(34.5)	(32.5)

Notes. The fraction (in percentile) of each type of galaxies in the three population models is shown: without redshift evolution, in our reference model and for the conservative scenario (second to fourth column, respectively). The fifth column shows the corresponding intrinsic u-r color intervals used for the modelisation of the spirals (early-type galaxies are taken directly from the SDSS-maxBCG catalogue). The last column shows the values of the ratio  for each template.