Table 1.

Information from phylogeography involves two main parameters: the degree of difference among genetic variants (branch length) and the way this diversity is distributed in space.

Spatial Distribution	High Diversity	Low Diversity
Homogenous	deeper coalescence larger population higher gene flow associated with persistent range	shallower coalescence smaller population higher gene flow associated with recent range expansion
Heterogenous	deeper coalescence larger metapopulation reduced gene flow spatial partitioning from older event(s)	shallower coalescence smaller metapopulation reduced gene flow spatial partitioning from more recent event(s)