example of some beaver damage on our land.
granted they're mostly aspen, but the context is what makes it bad. If these was the middle of a million acre forest a few dozen trees/beaver/year isn't that big of a deal. Really is just peanuts. But this is in the valleys surrounded by farmland that are really the only real forested areas in region. Little strips of forest that take a huge hit from beaver activity.
Also, if you notice, this is a fairly early successional forest where the main deciduous species are aspen, rock elm, and ashes. The ashes and elm are all dying at an alarming rate leaving the favourite beaver food in the area as one of the only shelters to the later successional trees like maples and beech as they mature.
I've also seen some some areas where the valley sides have slid as a result of the beavers harvesting all the main vegetation holding it together.
Huge beaver populations do not mix well with this sparsely forested area and I'm inclined to side with the forest and take out a few beaver.