Distinguishing characteristics of old-growth forest fall into two major categories: ecological and social.
Many old-growth forest stands are threatened and endangered species of plants and animals, making them ecologically significant. One example of a rare species reliant upon old-growth forest.
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Dynamics Definition
Old-growth forest is a forest in a stage that follows Understory Reinitiation stage.
Stand replacing kills most of the living trees.
Stand initiation population of new trees.
Stem exclusion trees grow higher and enlarge their canopy, thus competing for the light with neighbors. Light competition mortality kills slowly growing trees and reduces forest density. This allows surviving trees to increase in size.
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