ArticleProceedings. Biological sciences2022
Population viscosity promotes altruism under density-dependent dispersal.
Article in Proceedings. Biological sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 12 citations in OpenAlex.
- Interplay of Spatial Structure and Interactions in Microbial Communities.Environmental microbiology · 2026Review
- Non-breeding social behaviour as an investment in reducing future territoriality costs.Biological reviews of the Cambridge Philosophical Society · 2025Review
- Density-dependent dispersal reduces conflict over the sex ratio.Biology letters · 2024Article
- Kin selection of time travel: the social evolutionary causes and consequences of dormancy.Proceedings. Biological sciences · 2023Article
- Recombination as an enforcement mechanism of prosocial behavior in cooperating bacteria.iScience · 2023Article
- A simulation test of the prediction that density-dependent dispersal promotes female-biased sex allocation in viscous populations.microPublication biology · 2023Article
- Despite COVID: showcasing new research in evolutionary biology from academic care-givers in the middle of a pandemic.Proceedings. Biological sciences · 2022Article
- Paternal genome elimination promotes altruism in viscous populations.Evolution; international journal of organic evolution · 2022Article
- Density-dependent dispersal promotes female-biased sex allocation in viscous populations.Biology letters · 2022Article
- Population viscosity promotes altruism under density-dependent dispersal.Proceedings. Biological sciences · 2022Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A basic mechanism of kin selection is population viscosity, whereby individuals do not move far from their place of birth and hence tend to be surrounded by relatives. In such circumstances, even indiscriminate altruism among neighbours will often involve interactions between kin, which has a promoting effect on the evolution of altruism. This has the potential to explain altruistic behaviour across the whole tree of life, including in taxa for which recognition of kin is implausible. However, population viscosity may also intensify resource competition among kin, which has an inhibitory effect on altruism. Indeed, in the simplest scenario, in which individuals disperse with a fixed probability, these two effects have been shown to exactly cancel such that there is no net impact of viscosity on altruism. Here, we show that if individuals are able to disperse conditionally upon local density, they are favoured to do so, with more altruistic neighbourhoods exhibiting a higher rate of dispersal and concomitant relaxation of kin competition. Comparing across different populations or species, this leads to a negative correlation between overall levels of dispersal and altruism. We demonstrate both analytically and using individual-based simulations that population viscosity promotes the evolution of altruism under density-dependent dispersal.
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