Regarding organism's invasion, there is a generalization to explain the characteristics of this ecological process, i.e, the tens rule.

The definition is: about 10% of all introduced species establish themselves and about 10% of these established species become invasive.

It may hypothesized from a summarize of the global invasions, but I bet results may depend on which group we are interested in.

Several glossaries need to be understood.  Such as establishment success, invasion success....and  How to calculate the value of establishment success?