ArticleEvolution; international journal of organic evolution2013
A demographic transition altered the strength of selection for fitness and age-specific survival and fertility in a 19th century American population.
Article in Evolution; international journal of organic evolution, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 41 citations in OpenAlex.
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- Evolutionary Ecology of Senescence and a Reassessment of Williams' 'Extrinsic Mortality' Hypothesis.Trends in ecology & evolution · 2019Review
- The transition to modernity and chronic disease: mismatch and natural selection.Nature reviews. Genetics · 2018Review
- The Missing Response to Selection in the Wild.Trends in ecology & evolution · 2018Article
- The Reproductive Ecology of Industrial Societies, Part I : Why Measuring Fertility Matters.Human nature (Hawthorne, N.Y.) · 2016Article
- Genetic evidence for natural selection in humans in the contemporary United States.Proceedings of the National Academy of Sciences of the United States of America · 2016Article
- What if fertility decline is not permanent? The need for an evolutionarily informed approach to understanding low fertility.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016Review
- Reduced costs of reproduction in females mediate a shift from a male-biased to a female-biased lifespan in humans.Scientific reports · 2016Article
- Anthropometric geography applied to the analysis of socioeconomic disparities: cohort trends and spatial patterns of height and robustness in 20Population, space and place · 2015Article
- Individual fitness and phenotypic selection in age-structured populations with constant growth rates.Ecology · 2014Article
- Multi-level sexual selection: individual and family-level selection for mating success in a historical human population.Evolution; international journal of organic evolution · 2013Article
- The demographic transition influences variance in fitness and selection on height and BMI in rural Gambia.Current biology : CB · 2013Article
- Selection gradients, the opportunity for selection, and the coefficient of determination.The American naturalist · 2013Article
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Abstract
Modernization has increased longevity and decreased fertility in many human populations, but it is not well understood how or to what extent these demographic transitions have altered patterns of natural selection. I integrate individual-based multivariate phenotypic selection approaches with evolutionary demographic methods to demonstrate how a demographic transition in 19th century female populations of Utah altered relationships between fitness and age-specific survival and fertility. Coincident with this demographic transition, natural selection for fitness, as measured by the opportunity for selection, increased by 13% to 20% over 65 years. Proportional contributions of age-specific survival to total selection (the complement to age-specific fertility) diminished from approximately one third to one seventh following a marked increase in infant survival. Despite dramatic reductions in age-specific fertility variance at all ages, the absolute magnitude of selection for fitness explained by age-specific fertility increased by approximately 45%. I show that increases in the adaptive potential of fertility traits followed directly from decreased population growth rates. These results suggest that this demographic transition has increased the adaptive potential of the Utah population, intensified selection for reproductive traits, and de-emphasized selection for survival-related traits.
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