invasive species experiment..please help me out a bit!!! =)?

Question

basically i am given an invasive species (african giant snails..they were imported to hawaii)
can any one please give me a ROUGH idea of how the following experiment could possibly be cairried out please?
how can you tEST a hypothesis (not in real life though..only for school...) that this species truly is invasive ? any CREATIVE, original brilliant ideas would be so greatly appreciated, you have no clue!!
thanks!!

Answer 1

If you define invasive, a species that is well adaptive to the area you are looking at, would not succumb to local predators, has adequate food supply and is either resistant or can manage any diseases that may be present.

You could test this hypothesis either by looking at its home environment for how it lives and compare it to the new environment, by building a test site that would permit you to observe how it does in the new environment(many of the problems of introduced species have been introduced in this way e.g. African bees) or you could do the exercise totally mentally by looking up all the variable in both environments and make a judgment(this is the least accurate method).