ArticleScientific reports2021
Degree of anisogamy is unrelated to the intensity of sexual selection.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 13 papers, 1 of them a synthesis that pooled it.
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Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Multivariate Models of Animal Sex: Breaking Binaries Leads to a Better Understanding of Ecology and Evolution.Integrative and comparative biology · 2023Pooled it
- Thermal Stress Has Size-Dependent but Not Sex-Specific Effects on Mortality in an Insect Model.Ecology and evolution · 2026Article
- Demographic causes and social consequences of adult sex ratio variation.Nature communications · 2026Article
- Sexes Are Polymorphisms: Describing and Understanding Sexual Diversity as Phenotypic Variation.Integrative and comparative biology · 2026Review
- Anisogamy and the Darwin-Bateman paradigm.Evolution letters · 2024Article
- Anisogamy and sex roles: a commentary.Evolution letters · 2024Article
- The correlation between anisogamy and sexual selection intensity-the broad theoretical predictions.Evolution letters · 2024Article
- The logic of conventional and reversed Bateman gradients.Proceedings. Biological sciences · 2024Article
- Sexual size dimorphism in mammals is associated with changes in the size of gene families related to brain development.Nature communications · 2024Article
- The evolution of sex roles: The importance of ecology and social environment.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Evolution of reproductive strategies: sex roles, sex ratios and phylogenies.Biologia futura · 2023Review
- A matter of time: Bateman's principles and mating success as count and duration across social strata in contemporary Finland.Proceedings. Biological sciences · 2023Article
- The evolution of parental care in salamanders.Scientific reports · 2022Article
Corrections and comments
- Erratum issued
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Males and females often display different behaviours and, in the context of reproduction, these behaviours are labelled sex roles. The Darwin-Bateman paradigm argues that the root of these differences is anisogamy (i.e., differences in size and/or function of gametes between the sexes) that leads to biased sexual selection, and sex differences in parental care and body size. This evolutionary cascade, however, is contentious since some of the underpinning assumptions have been questioned. Here we investigate the relationships between anisogamy, sexual size dimorphism, sex difference in parental care and intensity of sexual selection using phylogenetic comparative analyses of 64 species from a wide range of animal taxa. The results question the first step of the Darwin-Bateman paradigm, as the extent of anisogamy does not appear to predict the intensity of sexual selection. The only significant predictor of sexual selection is the relative inputs of males and females into the care of offspring. We propose that ecological factors, life-history and demography have more substantial impacts on contemporary sex roles than the differences of gametic investments between the sexes.
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