Pioneer species are those species
that colonize places previously
there were no beings, like, for
example, that colonize bare rocks.
general, pioneer species are
or those that maintain
ecologicalinter action with
autotrophic (like autotrophic
bacteria, herbaceous , lichens).

The pioneer community formed of
species able survive under hostile
environments.The of these
species modifies microenvironment
generating changes in and biotic
factors of ecosystem undergoing
formation. Therefore open the way
to species to establish in place
by the creation new potential
ecological niches.