The t-test is any statistical hypothesis test in which the test statistic follows a student’s t-distribution under the null hypothesis.

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#Unit 10. Ecological Principles

Competitive exclusion principle The principle that two species cannot coexist indefinitely when they are both limited by the same resource.

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#Unit 10. Ecological Principles

The Enemy release hypothesis is the idea that invasive species are less impacted by enemies than native species.

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#Unit 10. Ecological Principles

Lack of environmental constraints hypothesis suggests preadaptation of some invaders to existing environmental conditions.

With few limitations to many abiotic environments, these invaders can grow quickly and outcompete native species

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#Unit 10. Ecological Principles

An interaction in which one organism, the predator, eats all or part of the body of another organism, the prey.

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#Unit 10. Ecological Principles

Introduced species A species that is introduced to a region of the world where it has not historically existed. Also known as Exotic species or Non-native species

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#Unit 10. Ecological Principles

Invasive species An introduced species that spreads rapidly and has negative effects on other species, human recreation, or human economies.