ArticleAmerican journal of biological anthropology2022
The ontogeny of sexual dimorphism in free-ranging rhesus macaques.
Article in American journal of biological anthropology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 20 citations in OpenAlex.
- Trajectory-based weight modeling distinguishes pathologic weight loss and predicts adverse events in nonhuman primate allogeneic kidney transplantation.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2026Article
- Early life adversity shapes adult behavior in a free-ranging primate.bioRxiv : the preprint server for biology · 2026Article
- Variation in trabecular bone microarchitecture across rhesus macaque (Macaca mulatta) load-bearing joints.Journal of anatomy · 2026Article
- Beyond Body Mass, Beyond Adulthood: The Ontogeny of Sexual Size Monomorphism.American journal of biological anthropology · 2026Article
- Temporal Changes in Vertebral Morphology of the Free-Ranging Rhesus Macaques From Cayo Santiago, Puerto Rico.American journal of biological anthropology · 2026Article
- Cost-effective solutions for high-throughput enzymatic DNA methylation sequencing.PLoS genetics · 2025Article
- Comparative Context of Hard-Tissue Sexual Dimorphism in Early Hominins: Implications for Alpha Taxonomy.Evolutionary anthropology · 2025Review
- 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
- The biology of aging in a social world:insights from free-ranging rhesus macaques.bioRxiv : the preprint server for biology · 2023Article
- Article
- Sexual Dimorphism in the Chinese Endemic SpeciesAnimals : an open access journal from MDPI · 2022Article
- Elemental composition of primary lamellar bone differs between parous and nulliparous rhesus macaque females.PloS one · 2022Article
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Authors and funding
12 authors at 7 institutions in 2 countries.
Funding
Abstract
Objective: Reconstructing the social lives of extinct primates is possible only through an understanding of the interplay between morphology, sexual selection pressures, and social behavior in extant species. Somatic sexual dimorphism is an important variable in primate evolution, in part because of the clear relationship between the strength and mechanisms of sexual selection and the degree of dimorphism. Here, we examine body size dimorphism across ontogeny in male and female rhesus macaques to assess whether it is primarily achieved via bimaturism as predicted by a polygynandrous mating system, faster male growth indicating polygyny, or both. Methods: We measured body mass in a cross-sectional sample of 364 free-ranging rhesus macaques from Cayo Santiago, Puerto Rico to investigate size dimorphism: 1) across the lifespan; and 2) as an outcome of sex-specific growth strategies, including: a) age of maturation; b) growth rate; and c) total growth duration, using regression models fit to sex-specific developmental curves. Results: Significant body size dimorphism was observed by prime reproductive age with males 1.51 times the size of females. Larger male size resulted from a later age of maturation (males: 6.8-7.8 years versus females: 5.5-6.5 years; logistic model) and elevated growth velocity through the pre-prime period (LOESS model). Though males grew to larger sizes overall, females maintained adult size for longer before senescence (quadratic model). Discussion: The ontogeny of size dimorphism in rhesus macaques is achieved by bimaturism and a faster male growth rate. Our results provide new data for understanding the development and complexities of primate dimorphism.
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