| Abstract |
Environment deeply affects galaxies from the very earliest stages of
their formation throughout their whole history until the present
day. The dependence of galaxy properties on environment can be seen in
many ways, as a dependence on the local density around each galaxy, as
a trend with the mass of the cluster and group where they reside, as a
systematic change with distance from the center of the nearest cluster
and so on. I will present an overview of the variations in star
formation histories in clusters, groups and the field and their
dependence on local density and mass of the host structure, both at
z=0.4-1 and z=0. I will also present the connection between the evolution
of the star formation activity and of galaxy morphologies, discussing a
possible evolutionary scenario within the cosmological hierarchical
framework.
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