A bar chart representing the disturbance in forests, for the boreal forest, and other forest ecosystems. The vertical axis gives the area disturbed in millions of hectares, and the horizontal axis lists the forest types (boreal and other). There are three bars for each forest type, one for each type of disturbance: insects, fire, and harvesting. The approximate values, in millions of hectares disturbed, are as follows: in the boreal forest: insects, 12.3; fire 2.0; and harvest, 0.5. For the other forest areas: forest insects disturb 6.8, fire, 0.3; and harvest, 0.5 million hectares.