There was a gradual decrease of
estimated species richness along the gradient of increasing urbanization.
The estimated number of species in the non-urbanized
blocks represented 91.6% of the richness estimated for the entire
city and was significantly higher than those of the urbanized block types
. Semi-urbanized blocks and non-urbanized blocks with some
degree of alteration had similar species richnesses, while urbanized
blocks showed the lowest species richness; these blocks included
only 45% of the species estimated for the whole city (Table 2).