Allopatric speciation

Definition

A mechanism of speciation resulting from geographic separation of populations, particularly physical barriers such as mountains and oceans.

Etymology

From Greek 'allo-', meaning 'other', and 'patris', meaning 'country' or 'fatherland'.

Example

The allopatric speciation of the Hawaiian honeycreepers is thought to have occurred due to volcanic island formation.

Related Terms

• Geographic isolation
• Reproductive isolation

Usage Notes

Allopatric speciation is considered the primary mechanism for the evolution of new species.