Rees-Baylis, Ella; Pen, Ido; Kreider, Jan J (2024). Maternal manipulation of offspring size can trigger the evolution of eusociality in promiscuous species. Proceedings of the National Academy of Sciences of the United States of America - PNAS, 121(33) National Academy of Sciences 10.1073/pnas.2402179121
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rees-baylis-et-al-2024-maternal-manipulation-of-offspring-size-can-trigger-the-evolution-of-eusociality-in-promiscuous.pdf - Published Version Available under License Creative Commons: Attribution-Noncommercial-No Derivative Works (CC-BY-NC-ND). Download (2MB) | Preview |
Eusocial organisms typically live in colonies with one reproductive queen supported by thousands of sterile workers. It is widely believed that monogamous mating is a precondition for the evolution of eusociality. Here, we present a theoretical model that simulates a realistic scenario for the evolution of eusociality. In the model, mothers can evolve control over resource allocation to offspring, affecting offspring's body size. The offspring can evolve body-size-dependent dispersal, by which they disperse to breed or stay at the nest as helpers. We demonstrate that eusociality can evolve even if mothers are not strictly monogamous, provided that they can constrain their offspring's reproduction through manipulation. We also observe the evolution of social polymorphism with small individuals that help and larger individuals that disperse to breed. Our model unifies the traditional kin selection and maternal manipulation explanations for the evolution of eusociality and demonstrates that-contrary to current consensus belief-eusociality can evolve despite highly promiscuous mating.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) |
UniBE Contributor: |
Rees-Baylis, Ella Maisie |
Subjects: |
500 Science > 570 Life sciences; biology |
ISSN: |
1091-6490 |
Publisher: |
National Academy of Sciences |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
08 Aug 2024 08:15 |
Last Modified: |
09 Aug 2024 05:33 |
Publisher DOI: |
10.1073/pnas.2402179121 |
PubMed ID: |
39110731 |
Uncontrolled Keywords: |
eusociality evolutionary models kin selection maternal manipulation social insects |
BORIS DOI: |
10.48350/199571 |
URI: |
https://boris.unibe.ch/id/eprint/199571 |
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