So if we let the rabbits run wild until another equilibrium, as the one that occurred after the dingo introduction, then that new equilibrium is the one we are then to protect? I'd argue that there has never been any sort of natural equilibrium so long as humans, any humans, have been active in an environment. We must pick which human arrival draws the line between natural an not. I'd go with the original arrival.
Yes, a new equilibrium would arise. And many species would likely go extinct. We can't protect the species that the dingo drove into extinction because they went extinct thousands of years ago... We can protect the ones that the rabbit is driving into extinction.... That's where we draw the line....
