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Chapter 18: Problem 22

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

Short Answer

Expert verified
The competitive exclusion principle states that two species that compete for the exact same resources cannot stably coexist. One species will drive the other to extinction or force them to evolve to use different resources. This affects the biodiversity of the ecosystem.

Step by step solution

01

Definition of Competitive Exclusion Principle

The competitive exclusion principle, also known as Gause's Law, states that two species that compete for the exact same resources cannot stably coexist. The species that is slightly more efficient at using resources will drive the other to extinction.
02

Effects of Competitive Exclusion on Competing Species - Part 1

The competitive exclusion principle has major effects on competing species, it leads to the extinction of one of the species. The species that is less adapted to competition for resources will lose out and eventually become extinct over time.
03

Effects of Competitive Exclusion on Competing Species - Part 2

An alternative outcome could be resource partitioning or niche differentiation where species may evolve to use different resources or use them at different times, allowing them to coexist without directly competing.

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