Blackwell Publishing

Sympatric speciation


In sympatric speciation, a species splits into two without any separation of the ancestral species' geographic range. With the exception of hybrid speciations, it has been a source of recurrent controversy whether sympatric speciation ever happens.

Sympatric speciation can be compared with the allopatric and parapatric theories of speciation.

Speciation in Phytophagous insects is a possible example of sympatric speciation.

How could sympatric speciation occur?

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