Table 4. AMOVA results testing the genetic subdivision between populations based on mtDNA sequences among geographic districts of Taiwan Island.

	Sum of squares	Percentage of variation	Fixation indices	Significance tests
Groups: (K = 2)
Among groups	1375.723	80.10	ΦCT  =  0.801	P  =  0.000
Among populations within groups	300.286	7.40	ΦSC  =  0.371	P  =  0.000
Within populations	435.615	12.50	ΦST  =  0.875	P  =  0.000
Groups: (K = 5)
Among groups	1505.967	75.37	ΦCT  =  0.753	P  =  0.001
Among populations within groups	170.042	6.27	ΦSC  =  0.254	P  =  0.000
Within populations	435.615	18.36	ΦST  =  0.816	P  =  0.000