Natural Variation for Lifespan and Stress Response in the Nematode Caenorhabditis remanei
Figure 1
Differences in lifespan of C. remanei isofemale lines.
Top row: age-specific survival (S(t)) of females (A), males (B). Middle row: age-specific hazard (risk of death) of females (C), males (D) Hazard is defined as the instantaneous risk of death. Although hazards have no universal scale, max hazard (100% risk of death within the following day) for these data is one. The reciprocal of the hazard 1/h(t) is expected time to death, given survival to age t. Bottom row: mean adult lifespan of females (E) and males (F); bars are standard errors. Lifespan displayed low but significant heritability and coefficient of additive genetic variation (Table 1).