Difference Between Allopatric And Sympatric Speciation

During the process of evolution, the formation of new and distinct species is defined as speciation. New species form by two major mechanisms viz sympatric speciation and allopatric speciation. The allopatric speciation is also known as geographical speciation. The difference in environmental factors causes the change in allopatric speciation. In sympatric speciation, the evolution of new species takes place from a single ancestral species. Here we are discussing various differences between allopatric and sympatric speciation.

Also Read: Anagenesis

Difference Between Allopatric And Sympatric Speciation

Allopatric Speciation Sympatric Speciation
The physical isolation of the biology population due to the extrinsic barrier is called allopatric speciation The evolution of new species from one ancestral species by living in the same habitat is called sympatric speciation
Differentiation mechanism
Natural selection Polyploidy
Commonly found in nature Commonly found in plants
Takes place through geographic isolation
Yes No
Emerging new species speed
Slow Fast
Squirrels in the Grand Canyon, Darwin’s Finches, etc. Tobacco, Wheat, Cultivated corn, etc.

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Further Reading:

Speciation and Evolution

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