I've heard some antkeepers talking on the internet about the consequences of keeping exotic species, the ones that are not native to your area.
That it's important to buy and catch only those ants that are native to where you live, and that keeping any exotic species (not even necessarily invasive) is not ethical for some environmental reasons which I don't understand...
What's so bad about keeping say southern species in the Northern Hemisphere?
If you let the alates escape your nest and let them fly and breed in your area (where there aren't any other alates of the same species), nothing happens.
Even if you have a polygynous species that can escape and successfully live outside, one winter will kill them all as soon as they're from South and do not hibernate.
Suppose they have parasites that are not native to your area too - those will be some worms and mites, but if you succeed in killing them or just don't let them out of the nest then nothing really threatens your environment again.
I just don't get the reasoning behind all this so-called bioethics...
What do you think of this whole argument? And do you keep any invasive ants?