Overhunting World Change

Have you ever heard of the White Deer of Ab'Dendriel's forest? These beautiful creatures are loved and revered by the Elves while some less scrupulous traders are rather interested in their valuable fur and impressive antlers. So in order to make profit adventurers often hunt these deer, and thus, endanger the species with extinction. Also, killing White Deer will disrupt the delicate ecological balance since their natural enemies, the Wolves, will begin to starve sooner or later. So if the deer population decreases too much the number of starving wolves will rise. In that case you can actively help the elves to restore the natural balance by luring enough wolves into special traps and handing their corpses over so that the deer population might recover.