The evolution of premature reproductive senescence and menopause in human females
- 1 December 1991
- journal article
- Published by Springer Science and Business Media LLC in Human Nature
- Vol. 2 (4), 313-350
- https://doi.org/10.1007/bf02692196
Abstract
Reproductive senescence in human females takes place long before other body functions senesce. This fact presents an evolutionary dilemma since continued reproduction should generally be favored by natural selection. Two commonly proposed hypotheses to account for human menopause are (a) a recent increase in the human lifespan and (b) a switch to investment in close kin rather than direct reproduction. No support is found for the proposition that human lifespans have only recently increased. Data from Ache hunter-gatherers are used to test the kin selection hypothesis. Ache data do not support the proposition that females can gain greater fitness benefits in old age by helping kin rather than continuing to reproduce. Nevertheless, one crucial parameter in the model, when adjusted to the highest value within the measured 95% confidence interval, would lead to the evolution of reproductive senescence at about 53 years of age. Further investigation is necessary to determine whether the kin selection hypothesis of menopause can account for its current maintenance in most populations.Keywords
This publication has 34 references indexed in Scilit:
- Fertility‐related changes in maternal body composition among the au of Papua New GuineaAmerican Journal of Physical Anthropology, 1991
- How to live like a mammalNature, 1991
- Fertility in Anthropological PopulationsAnnual Review of Anthropology, 1990
- Living fast and dying young: A comparative analysis of life‐history variation among mammalsJournal of Zoology, 1990
- Fecundability and husband's ageBiodemography and Social Biology, 1989
- Menarche, menopause and reproduction in the Kipsigis of KenyaJournal of Biosocial Science, 1989
- Differential paternity in LibyaJournal of Biosocial Science, 1987
- The moulding of senescence by natural selectionJournal of Theoretical Biology, 1966
- The genetical evolution of social behaviour. IJournal of Theoretical Biology, 1964
- LONG-TERM REPRODUCTIVE PERFORMANCE OF FEMALE MICEReproduction, 1962