Selection on age-specific survival: Constant versus fluctuating environment

Stefano Giaimo

Theoretical Population Biology, 2022, vol. 145, issue C, 136-149

Abstract: According to a classic result in evolutionary biodemography, selection on age-specific survival invariably declines with reproductive age. The result assumes proportional changes in survival and a constant environment. Here, we look at selection on age-specific survival when changes are still proportional but the environment fluctuates. We find that selection may or may not decline with reproductive age depending on how exactly survival is proportionally altered by mutations. However, interpreted in neutral terms, the mathematics behind the classic result capture a general property that the genetics of populations with age structure possess both in a constant and in a fluctuating environment.

Keywords: Aging; Elasticity; Environmental stochasticity; Hamilton; Reproductive value (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:eee:thpobi:v:145:y:2022:i:c:p:136-149

DOI: 10.1016/j.tpb.2022.05.001

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