Competitive exclusion principle.

competitive exclusion principle

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The competitive evolution principle is often called Gause's Law of Competitive Exclusion. This principle states that two different species competing for the same things cannot coexist.

The principle of competitive exclusion states that two species cannot occupy the same niche. If they do occupy the same niche, competition for food, space and limited resources will occur. Too much competition will occur until the best-adapted species cause the disappearance of the other.