Fig. 9.

Effects of housing density, diet and chico heterozygosity upon lifespan. a Survival of STD responder males in vials preconditioned with 15 or 30 STD donor males (15 responders per vial). Note that the survival curves for no donors and 30 STD male donors are the same as those shown in Fig. 4d as these experiments were done in parallel. b–d, Survival of STD males b LOW males c and STD females d on HYHG diet at housing densities ranging from 3 to 90 flies per vial. e Survival of STD and LOW males on LYHG diet at 15 or 30 flies per vial. f Survival of STD males on LY diet at 15, 30 or 45 flies per vial. g Survival of chico ^+/− and chico ^+/+ STD males, housed on HYHG at densities of 15 or 30 per vial