  Using a volume-limited sample of Main Galaxies from the SDSS Data Release 5,
we investigate the dependence of galaxy properties on local environment. For
each galaxy, the local three-dimensional density is calculated. We find that
galaxy morphologies strongly depend on local environment: galaxies in dense
environments have predominantly early type morphologies, but other galaxy
properties do not present significant dependence on local environment. Clearly,
this puts a important constraint on proposed physical mechanisms.
