BIO 111 Chapter Notes - Chapter Workshop 4: Menopause
Document Summary
Grandmother hypothesis the idea that a grandmother has a significant effect on the reproductive success of her children and the survival of her grandchildren. It is levels of fertility, not life expectancy, that shift the proportion of elders in a population. Our closest living relatives have similar fertility ranges, yet their survival rates are significantly lower than ours. They die nearly at the time when they stop having children while we live much longer. 1: explains that it is fertility, not life expectancy, that shifts the proportion of elders in a population. Grandmothers can assist in childcare: food provisioning. Lahde(cid:374)pera"s work de(cid:373)o(cid:374)strated that the duratio(cid:374) of a wo(cid:373)a(cid:374)"s post(cid:373)e(cid:374)opausal survival affects both the reproductive success of her children and the survival of her grandchildren. Also sons and daughters with living (postmenstrual) mothers had children sooner and raised more of them to adulthood.
