Senescence vs. sustenance: evolutionary-demographic models of aging
Demographic Research, 23:23, 655–668 (2010)
Humans, and many other species, suffer senescence: mortality increases and fertility decreases with adult age. Some species, however, enjoy sustenance: mortality and fertility remain constant. Here we develop simple but general evolutionary-demographic models to explain the conditions that favor senescence vs. sustenance. The models illustrate how
mathematical demography can deepen understanding of the evolution of aging.