ArticleEvolution letters2019
Extended haplodiploidy hypothesis.
Article in Evolution letters, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 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
7 citing papers in PubMed, 18 citations in OpenAlex.
- No evidence that haplodiploidy favors the evolution of eusociality.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Sex-biased cooperation among immature peers: it matters who helps whom.Proceedings. Biological sciences · 2025Article
- The presence of a guard vicariously drives split sex ratios in a facultatively social bee.Biology letters · 2023Article
- Gene dynamics of haplodiploidy favor eusociality in the Hymenoptera.Evolution; international journal of organic evolution · 2022Article
- Male survivorship and the evolution of eusociality in partially bivoltine sweat bees.PloS one · 2022Article
- The evolution of eusociality: no risk-return tradeoff but the ecology matters.Ecology letters · 2020Article
- Sibling quality and the haplodiploidy hypothesis.Biology letters · 2020Article
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Evolution of altruistic behavior was a hurdle for the logic of Darwinian evolution. Soon after Hamilton formalized the concept of inclusive fitness, which explains how altruism can evolve, he suggested that the high sororal relatedness brought by haplodiploidy could be why Hymenopterans have a high prevalence in eusocial species, and why helpers in Hymenoptera are always female. Later it was noted that in order to capitalize on the high sororal relatedness, helpers would need to direct help toward sisters, and this would bias the population sex ratio. Under a 1:3 males:females sex ratio, the inclusive fitness valuation a female places on her sister, brother, and an own offspring are equal-apparently removing the benefit of helping over independent reproduction. Based on this argumentation, haplodiploidy hypothesis has been considered a red herring. However, here we show that when population sex ratio, cost of altruism, and population growth rate are considered together, haplodiploidy does promote female helping even with female-biased sex ratio, due the lowered cost of altruism in such populations. Our analysis highlights the need to re-evaluate the role of haplodiploidy in the evolution of helping, and the importance of fully exploring the model assumptions when comparing interactions of population sex ratios and social behaviors.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.