The principle that states that two different species cannot occupy the same niche in a given habitat is called what?

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Competitive exclusion, also known as Gause's law, is the principle that when two species compete for the same resources in the same habitat, one species will eventually outcompete and displace the other. This applies to both direct competition and indirect competition through resource depletion. In other words, two species cannot occupy the same niche in a given habitat because one species will always have a competitive advantage over the other. Pauli exclusion refers to a principle in quantum mechanics and mutual exclusion is a broader concept that applies to any situation where two entities cannot coexist in the same space or function.

The Principle That States That Two Different Species Cannot Occupy