I was shocked to see the tree in the picture. Not because it is a fallen tree, as there are any number of them in the Dene, but because this tree has been systematically pulled down for no good reason. Denton Dene is well managed in that trees that fall are allowed to lie and to rot down, which is advantageous to wildlife.
This tree was in the prime of life and could have filled a gap in the canopy if an older tree had died. In an ideal world the little orcs that did this would be trampled into the ground by an avenging guardian. Sadly, ents are only a literary wish fulfillment of a writer who loved trees and who really felt that Birnam Wood should have really risen to attack Dunsinane.