Adaptive Radiation

Abstract

Adaptive radiation is a diversification of a single lineage into morphologically or physiologically distinct taxa that are adapted to a certain set of environmental conditions.

Keywords: key innovation; diversification; galapagos finches; hawaiian flora and fauna

Figure 1.

Schematic diagram of an adaptive radiation. The outgroup (species A) is the representative of an ancestral species that diverged prior to the diversification of the rest of the species (designated B–K). Three clades within a monophyletic group are considered (numbers 1–3) and are found in different environments. Dashed lines correspond to three different phenotypic characters that are found in all species within the group but not found in the other two groups. This unique character is an adaptation to the environment where that clade is found, which has allowed for the diversification within the clade.

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References

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Further Reading

Futuyma DJ (1997) Evolutionary Biology. Sunderland, MA: Sinauer Associates.

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Lack D (1947) Darwin's Finches. Cambridge: Cambridge University Press.

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How to Cite close
Murren, Courtney J(Apr 2001) Adaptive Radiation. In: eLS. John Wiley & Sons Ltd, Chichester. http://www.els.net [doi: 10.1038/npg.els.0001782]