FIGURE 2.

Genotype‐dependent effects of the social environment on lifespan in D. serrata. Shown are pooled adult, male and female lifespan for the homozygous founder lines DsGRP20♂ × DsGRP20♀ and DsGRP57♂ × DsGRP57♀, as well as both reciprocal F1 crosses DsGRP20♂ × DsGRP57♀ and DsGRP57♂ × DsGRP20♀ between these lines. Each bar represents the mean of each genotype measured in one of six different densities (low, medium and high) × mating status (mated and non‐mated) treatment combinations. Error bars represent the 1 S.E. of the mean