Wilson and Agnew, 1992).
Such changes in soil ecology either accelerate the exotic’s own
growth or promote its competitive superiority to native species; a
positive feedback system could develop that promotes the spread
of the exotic. The changes in decomposition and nutrient cycling
associated with invasions may have positive impacts on nutrient
availability that can in turn lead to greater decomposition rates
(Hobbie and Vitousek, 2000) and thus further increase the amount
of nutrients and rate at which they are cycled through the
ecosystem. Thus increased nutrient availability will favor faster
growing, higher productivity species and in particular may favour