When refering to destructive invasive species remember snakes fall far behind Rodents, insects, pigs and humans. Hawaii has suffered because of all of these....except the snakes.
Actually the Boiga (Guam) situation is hardly a good example of an invasive species in action, because of certain "special conditions":
The first being...The large quantity of prey animals available with no competition from other predators.
Then; add the fact that there are no snake eating predators on Guam, allowing unlimitted breeding success. Hardly typical.
The point being, any large colubrid that was at least partially arborial and fed on birds would have had the same effect on Guam. Our American Black/yellow ratsnakes would have had the same success.
That is why for example: None of these (Boiga) species has ever become established in Florida. We have an ample food supply but the majority of our larger wildlife eats snake as a staple.
Saying a specific Ban on B. irregularus (and the rest of the Boiga sp.)is the solution to this (Guam)problem is ludicrous, which is why I fought that proposal.
Any adaptive species that is introduced to an alien enviroment where food and shelter is available will survive. Which is why the Bramminy Blind snake now has the worlds largest range of any snake.
The trouble with restrictive legislation is that all to often those who create this legislation are either Biased against the animals, or lack the education to properly comprehend the information handed them. The result is Knee-jerk legislation that is more based on prejudice and politics than sense. All too often this results in legislative over-kill (Banning the sheep with the wolf).
Limiting exportation (from an educated viewpoint) would be ideal. But in the world we live in you are not going to get that brand of educated polical altruism. Once on the books, Bad legislation is almost impossible to remove so for the time being at least...No legislation is the better of two evils.
Frank
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"The luxury of not getting involved departed with the last lifeboat Skipper..."