They can never be officially considered both invasive and endangered in the same place, but a species can be invasive in one place while endangered or even extinct in their original habitat. Nobody in science seems to ever talk about the fact that this could be seen as a trade-off, and perhaps the only hope for a lot of species.I actually OWN an example:
The cellar slug or ābeer slugā was spread throughout the world by humans, but last I heard, was recognized as threatened/rare in its original habitat, which is only a couple of caves in Germany.Theyāre so adapted to caves that they canāt even adapt to a nice dark forest or anything, theyāre only happy if they have āhardā subterranean places to go to, made of stone or something close enough to it. As a result, they now thrive almost only in cities and suburbs where there are basements or sewers, or even in gardens where they retreat under the house foundation or into flower pots during the day.They are ALL OVER Portland which is how I discovered them, and Iāve now had a bunch living for three years in a terrarium with rusty pipes to hide in. Thereās soil and wood and stuff in there, but they only like the pipes!