[sumtechguy]

you are not wrong. they can be very destructive. it is why most places keep an eye on them but mostly try to leave them alone. if they get near something like a road and flood it out they get captured and moved.

there are other parts of the US where they are basically extinct. we have literally decimated the beaver population in the US and Canada and are just starting to understand what that means. so some of those places are moving them back in to good effect. those areas have turned into basically deserts. there are no roads are farming near them because the beavers are no longer replenishing the aquifers and those guys left long ago. the fish are long gone because the rivers run dry every year now. once they put them back the fish return the banks start to grow with new growth and the rivers do not run dry every year. the best things that beavers do is what is called water linger. letting the water soak in and help the surrounding area.

in other areas like where you are from they are considered a nuisance because you have enough of them to fill the area up which is your point.

the downside to these sorts of conversations is everyone wants to do 'that one ting' but to properly fix these sorts of things is not planting some trees or dropping a beaver in. you have to have an ecosystem around them that supports that sort of thing. all the way up from the rocks, dirt, microbes, moss, bugs, small animals (birds and rodents), grasses, trees, and larger animals like beavers or foxes or bears. pluck one of those things out and the whole system hurts as there becomes an imbalance and stuff will die out or like you point out overrun the rest of the area. if your area is overrun with something there is probably some sort of imbalance.