The impact of environment on lifespan distribution dynamics

The environment generates numerous signals that control the lifespan of species living in it, including humans. By approximating survival curves with the Gompertz function and judging by the Strehler–Mildvan correlation (a linear dependence between the Gompertz function parameters), we have constructed 3D surfaces of survival curves in a wide range of controlling parameter values: characteristic species lifespan and cohort death rate. It has turned out that these surfaces have a complex form. In particular, we have shown the nonlinearity of the dependence between such human lifespan distribution parameters as mean lifespan and variance.