ArticleScientific reports2019
Male morphological traits are heritable but do not predict reproductive success in a sexually-dimorphic primate.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
9 citing papers in PubMed, 21 citations in OpenAlex.
- Temporal Changes in Vertebral Morphology of the Free-Ranging Rhesus Macaques From Cayo Santiago, Puerto Rico.American journal of biological anthropology · 2026Article
- Genetic Correlations Among Dental, Mandibular, and Postcranial Dimensions in Rhesus Macaques (Macaca mulatta).American journal of biological anthropology · 2025Article
- Early life adversity has sex-dependent effects on survival across the lifespan in rhesus macaques.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Article
- Immune cell composition varies by age, sex and exposure to social adversity in free-ranging Rhesus Macaques.GeroScience · 2024Article
- Article
- Same-sex sociosexual behaviour is widespread and heritable in male rhesus macaques.Nature ecology & evolution · 2023Article
- Coming to the Caribbean-acclimation of Rhesus macaques (Macaca mulatta) at Cayo Santiago.American journal of biological anthropology · 2023Article
- Article
- Endocranial volume is variable and heritable, but not related to fitness, in a free-ranging primate.Scientific reports · 2021Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
Abstract
Sexual selection favours traits that increase reproductive success via increased competitive ability, attractiveness, or both. Male rhesus macaque (Macaca mulatta) morphological traits are likely to reflect the effects of multiple sexual selection pressures. Here, we use a quantitative genetic approach to investigate the production and maintenance of variation in male rhesus macaque morphometric traits which may be subject to sexual selection. We collected measurements of body size, canine length, and fat, from 125 male and 21 female free-ranging rhesus macaques on Cayo Santiago. We also collected testis volumes from males. We used a genetic pedigree to calculate trait heritability, to investigate potential trait trade-offs, and to estimate selection gradients. We found that variation in most male morphometric traits was heritable, but found no evidence of trait trade-offs nor that traits predicted reproductive success. Our results suggest that male rhesus macaque morphometric traits are either not under selection, or are under mechanisms of sexual selection that we could not test (e.g. balancing selection). In species subject to complex interacting mechanisms of selection, measures of body size, weaponry, and testis volume may not increase reproductive success via easily-testable mechanisms such as linear directional selection.
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Registered trials
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