Table 2. Results of NCPA for each mtDNA lineage.

Clone	Clade	Chain of Inference	Result	Age (MYA)	C.I. (MYA)
3N1	1-1	1-2-3-5-6-TOO FEW-7-YES	DRD in eastern part of range, range expansion to southeast	0.06	0.001–0.23
	1-2	1-2-3-4-NO	DRD in east/central part of range
	1-4	1-2-3-4-NO	DRD in western and central parts of range
	2-1	1-2-3-4-NO	DRD in eastern part of range
	2-2	1-2-3-4-NO	DRD in western and central parts of range
	Total	1-19-20-2-11-12-13-YES	Range expansion from west to east, possibly followed by some fragmentation between east and west	0.24	0.025–0.73
	-	-	Age based on divergence from CA6 mtDNA	2.65	0.54–6.67
3N2	1-2	1-2-3-4-NO	DRD in west and central
	1-3	1-2-11-12-NO	Range expansion from west/central to north/west parts of range	0.06	0.001–0.23
	1-6	1-2-11-12-NO	Range expansion from south/central to north/east parts of range	0.06	0.001–0.23
	2-1	1-2-3-4-NO	DRD throughout most of range
	2-3	1-2-3-4-NO	DRD in central, northern, and eastern parts of range
	Total	1-2-11-12-NO	Range expansion from west/central to north/east parts of range	0.07	0.006-0.22
	-	-	Age based on divergence from SM6 mtDNA	1.21	0.21-3.20

Only clades with significant values are shown. DRD = dispersal restricted by distance. For dates and confidence intervals, point estimates are based on an estimate of 1.3% sequence divergence per million years for this portion of the mtDNA genome. 95% Confidence intervals are based on a gamma probability distribution for coalescence time and a range of 1.22-1.4% divergence per million years (see methods). MYA = million years ago.