Table 4.

Test statistics of experiments on postmating isolation between strains in Nasonia vitripennis

Response variables	Factor	Chi2	Df	p
F1-female offspring	Origin of wasps	24.892	3	0.000***
F1-male offspring	“	24.688	3	0.000***
F1-total offspring	“	31.838	3	0.000***
F1 sex ratio	“	3.0007	3	0.3915

ANOVA test statistics based on generalized mixed models, family “quasipossion”, with origin of wasps (from the same strain, from different strains but the same microsatellite cluster with k = 3 or k = 5 subpopulations, or the same microhabitat) as factor