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- W2911571878 endingPage "20181968" @default.
- W2911571878 startingPage "20181968" @default.
- W2911571878 abstract "In species with sexual size dimorphism, the offspring of the larger sex usually have greater energy requirements and may lead to greater fitness costs for parents. The effects of offspring sex on maternal longevity, however, have only been tested in humans. Human studies produced mixed results and considerable debate mainly owing to the difficulty of distinguishing the effects of sexual dimorphism from sociocultural factors. To advance this debate, we examined how the relative number of sons influenced maternal longevity in four species of free-living ungulates (Soay sheep Ovis aries ; bighorn sheep, Ovis canadensis ; red deer, Cervus elaphus ; mountain goat, Oreamnos americanus ), with high male-biased sexual size dimorphism but without complicating sociocultural variables. We found no evidence for a higher cumulative cost of sons than of daughters on maternal longevity. For a given number of offspring, most females with many sons in all four populations lived longer than females with few sons. The higher cost of sons over daughters on maternal lifespan reported by some human studies may be the exception rather than the rule in long-lived iteroparous species." @default.
- W2911571878 created "2019-02-21" @default.
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- W2911571878 date "2019-02-06" @default.
- W2911571878 modified "2023-10-16" @default.
- W2911571878 title "Maternal longevity and offspring sex in wild ungulates" @default.
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- W2911571878 doi "https://doi.org/10.1098/rspb.2018.1968" @default.
- W2911571878 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6408606" @default.
- W2911571878 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30963926" @default.
- W2911571878 hasPublicationYear "2019" @default.
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