Table 3.

Estimations of timing of splitting events between Zonotrichia capensis lineages

	Mean “fast” clock (5%)	Low 95% HPD (2%)	Mean (2%)	High 95% HPD (2%)	Mean “slow” clock (1%)
ABC (32)	0.58	0.70	1.45	2.38	2.88
BC (21)	0.34	0.40	0.86	1.42	1.71
B (16)	0.15	0.15	0.37	0.64	0.74

TMRCA and 95% confidence intervals (in units of millions of years) for three different nodes in the tree shown in Figure  2. Values were estimated using BEAST and ND2 sequences with a ≈2% per million year divergence rate [52] (in bold). Sample sizes are in parenthesis after each node. The mean values obtained using alternative calibrations of 1 and 5% per million years (“slow” and “fast” clocks, respectively) are also reported.