Ring Species Speciation - Geographic Barrier Model

Simulation Controls

Parameters

Populations12

Gene Flow Rate0.12

Mutation Rate0.02

Genetic Drift0.03

Isolation Threshold0.35

Statistics

Generation

0.00

Termini Distance

0.00

Avg Adjacent

Speciation?

Genetic Distance Around Ring

About Ring Species

Classic examples include Ensatina salamanders around California's Central Valley and Larus gulls around the Arctic. Adjacent populations interbreed, but when the ring closes, the terminal populations have diverged enough to be reproductively isolated—demonstrating speciation in action.