The interference with one part of the chain affects the whole. The relevance of clear cutting comes into question when examining the whole. When a large group of trees is cut, there is a loss of diversity. Only the strongest trees grow back in the new inadequate conditions. The surrounding wildlife, which depends on the diversity of the forest, is adversely affected by clear cutting.
Many species require a certain kind of forest to survive.
One such example is the spotted owl, which requires large old growth patches in the forest to survive. Without the diversity that a normal forest contains, species begin to become extinct. Clear cutting eliminates diversity. Therefore, as a type of tree is lost, species are lost, and other losses continue to emerge in a domino effect. It can be assured we are in the path of this puzzle.