The principle of competitive exclusion states that a. two...

Name: Problem 2, Chapter 54: Campbell Biology
Uploaded: 2020-10-21T16:39:41-08:00
Duration: 2 min 26 s
Channel: Sam James
Description: The principle of competitive exclusion states that a. two species cannot coexist in the same habitat. b. competition between two species always causes extinction or emigration of one species. c. two species that have exactly the same niche cannot coexist in a community. d. two species will stop reproducing until one species leaves the habitat.

The principle of competitive exclusion states that a. two species cannot coexist in the same habitat. b. competition between two species always causes extinction or emigration of one species. c. two species that have exactly the same niche cannot coexist in a community. d. two species will stop reproducing until one species leaves the habitat.

The principle of competitive exclusion states that
a. two species cannot coexist in the same habitat.
b. competition between two species always causes extinction or emigration of one species.
c. two species that have exactly the same niche cannot coexist in a community.
d. two species will stop reproducing until one species leaves the habitat.

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Key Concepts

Competitive Exclusion Principle

This principle states that two species competing for the exact same resources (i.e., having identical niches) cannot stably coexist in the same habitat. Due to competition for limited resources, one species will eventually outcompete the other, leading to the exclusion of the less competitive species. It is a fundamental concept in understanding how species distributions and interactions shape community structure.

Ecological Niche

An ecological niche encompasses all the biotic and abiotic factors that a species requires to survive and reproduce, including its role in the ecosystem and how it utilizes resources. The niche concept is central to explaining how species coexist or compete; when niches overlap completely, intense competition arises, which underpins the competitive exclusion principle.

Species Coexistence

Species coexistence refers to the ability of different species to live together in the same environment over time. For stable coexistence, species typically need to minimize niche overlap through processes like resource partitioning, which reduces direct competition. When niches are too similar, one species may outcompete the other, leading to its local extinction, as predicted by the competitive exclusion principle.

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