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competitive exclusion principle

American  

noun

  1. Ecology. Also called Gause's law; Gause's principle. a principle that says if two species occupy the same ecological niche, the inevitable competition for resources will result in one of the species dying out, being driven out, or adapting to a different niche.


competitive exclusion principle Scientific  
/ kəm-pĕtĭ-tĭv /
  1. The principle that when two species compete for the same critical resources within an environment, one of them will eventually outcompete and displace the other. The displaced species may become locally extinct, by either migration or death, or it may adapt to a sufficiently distinct niche within the environment so that it continues to coexist noncompetitively with the displacing species.

  2. Also called Gause's law


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Explain how the competitive exclusion principle relates to this example.

From Textbooks • Jun. 9, 2022

Explain how two different species can coexist in the same habitat according to the competitive exclusion principle.

From Textbooks • Jun. 9, 2022

The competitive exclusion principle states that no two species can occupy exactly the same niche in exactly the same habitat at exactly the same time.

From Textbooks • Jan. 1, 2018

Describe the competitive exclusion principle and its effects on competing species.

From Textbooks • Apr. 25, 2013

The competitive exclusion principle states that two species cannot occupy the same niche in a habitat: in other words, different species cannot coexist in a community if they are competing for all the same resources.

From Textbooks • Apr. 25, 2013

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