“When two sympatric, closely related species appear to have very similar needs, we may ask whether mechanisms exist that enable them to avoid direct competition. Implicit in this questions the presumption that two species with identical requirements cannot coexist”

— Carl Safina

Gause 1934
[Foraging habitat partitioning in Roseate and Common Terns, The Auk, 107, 2, April 1990, 351–358, 10.2307/4087619, https://www.jstor.org/stable/4087619]

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Carl Safina5

American biologist 1955

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“When two sympatric, closely related species appear to have very similar needs, we may ask whether mechanisms exist that enable them to avoid direct competition. Implicit in this questions the presumption that two species with identical requirements cannot coexist”

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Carl Safina5

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