Volume 23 - Article 23 | Pages 655-668

Senescence vs. sustenance: Evolutionary-demographic models of aging

By Annette Baudisch, James W. Vaupel

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Date received:20 Oct 2009
Date published:28 Sep 2010
Word count:1884
Keywords:aging, eusociality, evolution, fertility, hydra, mortality, senescence, sustenance
DOI:10.4054/DemRes.2010.23.23
 

Abstract

Humans, and many other species, suffer senescence: mortality increases and fertility declines 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.

Author's Affiliation

Annette Baudisch - Max Planck Institute for Demographic Research, Germany [Email]
James W. Vaupel - Max Planck Institute for Demographic Research, Germany [Email]

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