Table 4.

Posterior distributions of historical parameters for scenario 4 in ABC analyses.

Parameter	Highland populations				Lowland populations
	median	mean	95% low	95% high	median	mean	95% low	95% high
N 1	526,000	519,000	41,800	977,000	533,000	525,000	46,000	977,000
N 3	17,600	41,400	868	243,000	12,800	31,800	604	196,000
t 1	0.121	0.132	0.078	0.290	0.138	0.143	0.096	0.291

N₁, current effective population size; N₃, effective population size before the expansion event; t₁, time of the expansion event (Ma).