I don't think there's a crisis. It's like a forest gets big and old and every so often there's a fire and it mostly burns down and then new trees spring up.
If all of the new trees are members of an invasive species, then no, the “cleansing fire” wasn’t good for that forest.
As somewhat of an ecologist here, yeah, that’s basically what happens.
Or, somewhat more broadly, if the fire is intense enough, you go from a climax community (say, a rainforest) right back to early-stage succession, with things like weeds and/or native small shrubs.
It takes centuries for that rainforest to return, if ever…
Exceptions for the dry schlerophyll forests of places like Australia, but that’s almost certainly because the Abos burned the place so thoroughly, 10s of thousands of years ago, and it was already so dry anyway, that it was never able to recover to the vegetation levels it likely had beforehand…
To take a human metaphor, let’s go with somewhere like Japan, or alternatively Iceland. You have a largely homogenous society (excluding the Ainu here, for Japan, but still), built up over centuries, that is reasonable stable and successful (again, excluding the issue of birth rates). Then a crisis happens (WW2), and you end up with “disruption” to that society, and the large-scale arrival of foreigners.
Unlikely that it can ever return to its original “base” situation. Once they’re in, they’re in.
Unfortunately many countries created the circumstances that led to this situation by themselves, with the whole… Marriage and birth rates thing.
If all of the new trees are members of an invasive species, then no, the “cleansing fire” wasn’t good for that forest.
But that is a different problem entirely.
The native population not breeding is NOT the same as migrants coming in.
Both are problems, and both deal with population, but one does not lead to the other.
From a sheer numbers perspective, there is no problem.
The only problem is what you said, that it'll be a new population with different values. SO GET FUCKING.
As somewhat of an ecologist here, yeah, that’s basically what happens.
Or, somewhat more broadly, if the fire is intense enough, you go from a climax community (say, a rainforest) right back to early-stage succession, with things like weeds and/or native small shrubs.
It takes centuries for that rainforest to return, if ever…
Exceptions for the dry schlerophyll forests of places like Australia, but that’s almost certainly because the Abos burned the place so thoroughly, 10s of thousands of years ago, and it was already so dry anyway, that it was never able to recover to the vegetation levels it likely had beforehand…
To take a human metaphor, let’s go with somewhere like Japan, or alternatively Iceland. You have a largely homogenous society (excluding the Ainu here, for Japan, but still), built up over centuries, that is reasonable stable and successful (again, excluding the issue of birth rates). Then a crisis happens (WW2), and you end up with “disruption” to that society, and the large-scale arrival of foreigners.
Unlikely that it can ever return to its original “base” situation. Once they’re in, they’re in.
Unfortunately many countries created the circumstances that led to this situation by themselves, with the whole… Marriage and birth rates thing.