Table 4. Analysis of MOlecular VAriance (AMOVA) based on 28S rDNA sequence data for Oithona similis.

Observed partition
Source of variation	Variance	%	Φ-statistics	P-value	d.f.
Among groups	0.646	53.58	ΦST  =  0.535	0.02	3
Among populations within groups	0.102	8.49	ΦSC  =  0.182	0.01	2
Within populations	0.457	37.94	ΦST  =  0.620	< 0.01	102

Variance and percentage of variance explained (%), fixation indexes (Φ-statistics), P-value indicates probability of obtaining a higher Φ value by chance estimated by 10,000 permutations, d.f.: degrees of freedom. (Refer to Method text for the definition of group and population).