Limitations of the Competitive Exclusion Principle

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Science  09 Dec 1960:
Vol. 132, Issue 3441, pp. 1761
DOI: 10.1126/science.132.3441.1761


Under severe conditions in the arctic the physical environment frequently overrides biological competition, allowing essentially random occurrence of plants without distinct associations and with the frequent coexistence of related species that have extremely similar requirements. Furthermore, a mixed population may be so advantageous in reducing disease incidence as to offset competition.