Chapter

Demography of Late Life with Lifelong Heterogeneity

Laurence D. Muller

in Does Aging Stop?

Published in print July 2011 | ISBN: 9780199754229
Published online September 2011 | e-ISBN: 9780199896714 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199754229.003.0006
Demography of Late Life with Lifelong Heterogeneity

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Within-cohort selection can theoretically lead to the deceleration of mortality rates when there is substantial lifelong heterogeneity in robustness. This effect arises in both non-aging and aging organisms. If there is implausibly extreme lifelong heterogeneity in robustness, late life can arise from the relictual survival of the extremely robust.

Keywords: heterogeneity; mortality; deceleration aging

Chapter.  3274 words.  Illustrated.

Subjects: Evolutionary Biology

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