Fig. 6

Influence of origin of the mating partners on number and sex ratio of F1-offspring in the parasitoid wasp Nasonia vitripennis. A F1-female offspring; B F1-male offspring; C F1-total offspring; D sex ratio. Females and males originate from the same strain (green, n = 90), or from different strains but the same microsatellite cluster with k = 3 (yellow, n = 90) or k = 5 (orange, n = 60) subpopulations, or originate from the same microhabitat (blue, n = 180). Box and whisker plots show minimum, maximum, 1st and 3rd quartile, and median. Different lower case letters indicate significant differences (p < 0.05, generalized linear models with family “quasipoisson” followed by ANOVA and Tukey-test. For test statistics see Tables 3 and 4