Indeed they will, but it will take 100 years for them to become Beaver bait. Still it is an interesting conundrum. Do you protect a 'trash' tree, or a rodent that sometimes goes into zealous overdrive mode? What makes a Douglas Fir or Blue Spruce more important than a Cottonwood? What makes the livelyhood of the beaver more important than the livelyhood of the logger? After all they both fell trees to feed their families. The only thing the beaver does after felling a big cottonwood is eat the tender bark from the upper trunk and branches.I bet the cottonwoods will resprout. Plus, beavers are a lot like me, they start big projects and only get halfway through them before moving on to something else!
Anyways it should explain why I call myself a reluctant environmentalist. I insist on seeing the entire equation not just a portion of one side.