1.   As they denude one area of edible vegetation, they simply move on to a place where the pickings are better.

2.   With an energy shortage on the island, Cubans have taken to cutting down timber for charcoal, quickly denuding large areas.

3.   Herders gathered where wells still worked, denuding grazing areas.

4.   The two countries then turned to slashing and burning, which began denuding vast areas with no pest relief.