American crows (species 1) compete with Turkey Vultures (species 2) for carrion. Vultures are 4x as large as crows and eat 4x as much. They also can chase Crows away from carcasses. Therefore, one additional vulture in an area displaces four crows, but it takes 10 additional crows to displace one vulture. The competition coefficients are O alpha12 (imaging the greek alpha with subsript 12) = 10, alpha21 = 4 %3D O alpha12 = 4, alpha21 = 10 %3! O alpha12 = 4, alpha21 = 0.1 alpha12 = 0.1, alpha21 = 4

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Communities and Ecosystems

Ecology contains two words: Eikos means dwelling, and logy means to study, so the combined meaning is studying habitat or living.