Figure 2.

Boxplots showing distribution of female longevities (in days) observed in vials of D. melanogaster containing one female and male(s), in treatments differing in the number of males and/or the type of inter- and intra-sexual relatedness. Vials in the ‘related-pair’ consist of a single male and female from the same familial lineage; while in the ‘unrelated-pair’ treatment, the flies are from different lineages. In ‘all-related’ vials the males are related to each other and to the female, in ‘males-related’ vials the males are related to each other but not to the female and in ‘all-unrelated’ vials the all flies are from different familial lineages. Shading of boxes indicates whether the male(s) in a vial are related to the female (white) or are unrelated (grey). Boxplot components are as described in figure 1.