Figure 7. Visual representation of the most likely model in the
demographic history analysis conducted using ∂a∂i. According to the
model, eastern and western monarchs diverged 112 thousand years ago with
a migration rate of 7.33*10-7. The populations went
through a pre-divergence bottleneck about 412 thousand years ago. The
effective population size during the bottleneck was estimated to be nuB
13,284,249 and the joint effective population size of eastern and
western monarchs was estimated to be 47,616,680.