A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä

Sex differences in adult mortality rate mediated by early-life environmental conditions




TekijätRobert M. Griffin, Adam D. Hayward, Elisabeth Bolund, Alexei A. Maklakov, Virpi Lummaa

KustantajaBlackwell Publishing Ltd

Julkaisuvuosi2018

JournalEcology Letters

Tietokannassa oleva lehden nimiEcology Letters

Vuosikerta21

Numero2

Aloitussivu235

Lopetussivu242

Sivujen määrä8

ISSN1461-023X

eISSN1461-0248

DOIhttps://doi.org/10.1111/ele.12888


Tiivistelmä

Variation in sex differences is affected by both genetic and environmental variation, with rapid change in sex differences being more likely due to environmental change. One case of rapid change in sex differences is human lifespan, which has become increasingly female-biased in recent centuries. Long-term consequences of variation in the early-life environment may, in part, explain such variation in sex differences, but whether the early-life environment mediates sex differences in life-history traits is poorly understood in animals. Combining longitudinal data on 60 cohorts of pre-industrial Finns with environmental data, we show that the early-life environment is associated with sex differences in adult mortality and expected lifespan. Specifically, low infant survival rates and high rye yields (an important food source) in early-life are associated with female-bias in adult lifespan. These results support the hypothesis that environmental change has the potential to affect sex differences in life-history traits in natural populations of long-lived mammals.



Last updated on 2024-26-11 at 11:50