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22: Biodiversity

Last updated

Oct 28, 2024
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- 21.4: Island Biogeography
- 22.1: What is Biodiversity?

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Learning Objectives

Differentiate among the types of biodiversity
Learn how to measure diversity using indices
Understand why biodiversity is not evenly distributed
Learn how rarefaction curves are used to estimate species richness

Summary

Genetic diversity, ecosystem diversity, and human-derived diversity are measures of biodiversity that currently define life on earth. Because it is often difficult to obtain a full list of species in any given location, various metrics are used to measure biodiversity, including Alpha, Beta, and Gamma diversity, and rarefaction curves. While around 2 million species have been scientifically described globally, estimates of the actual number of species on earth range from 10s of millions to billions.

Learning Objectives

Summary

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