Tag-based spite with correlated interactions

Bruner, Justin P.; Smead, Rory

doi:10.1016/j.jtbi.2022.111052

Cited by 7 publications

(4 citation statements)

References 47 publications

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“…The evolution of strong spite typically relies on the existence of mechanisms by which individuals can evaluate their relatedness with social partners and thus behave according to some kin or type-recognition mechanism (e.g. [68][69][70][71][72]). By contrast, in our model spite is indiscriminate: an individual deteriorates the environment in the future without paying attention to recipients' identities, even if this comes at a cost in the present.…”

Section: Discussionmentioning

confidence: 99%

The evolution of environmentally mediated social interactions and posthumous spite under isolation by distance

Mullon,

Peña,

Lehmann

2024

PLoS Comput Biol

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Many social interactions happen indirectly via modifications of the environment, e.g. through the secretion of functional compounds or the depletion of renewable resources. Here, we derive the selection gradient on a quantitative trait affecting dynamical environmental variables that feed back on reproduction and survival in a finite patch-structured population subject to isolation by distance. Our analysis shows that the selection gradient depends on how a focal individual influences the fitness of all future individuals in the population through modifications of the environmental variables they experience, weighted by the neutral relatedness between recipients and the focal. The evolutionarily relevant trait-driven environmental modifications are formalized as the extended phenotypic effects of an individual, quantifying how a trait change in an individual in the present affects the environmental variables in all patches at all future times. When the trait affects reproduction and survival through a payoff function, the selection gradient can be expressed in terms of extended phenotypic effects weighted by scaled relatedness. We show how to compute extended phenotypic effects, relatedness, and scaled relatedness using Fourier analysis, which allow us to investigate a broad class of environmentally mediated social interactions in a tractable way. We use our approach to study the evolution of a trait controlling the costly production of some lasting commons (e.g. a common-pool resource or a toxic compound) that can diffuse in space and persist in time. We show that indiscriminate posthumous spite readily evolves in this scenario. More generally, whether selection favours environmentally mediated altruism or spite is determined by the spatial correlation between an individual’s lineage and the commons originating from its patch. The sign of this correlation depends on interactions between dispersal patterns and the commons’ renewal dynamics. More broadly, we suggest that selection can favour a wide range of social behaviours when these have carry-over effects in space and time.

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Section: Discussionmentioning

confidence: 99%

The evolution of environmentally mediated social interactions and posthumous spite under isolation by distance

Mullon,

Peña,

Lehmann

2024

PLoS Comput Biol

View full text Add to dashboard Cite

show abstract

“…The evolution of strong spite typically relies on the existence of mechanisms by which individuals can evaluate their relatedness with social partners and thus behave according to some kin or type-recognition mechanism (e.g. [68, 69, 70, 71, 72]). By contrast, in our model spite is indiscriminate: an individual deteriorates the environment of others in the future without paying attention to recipients’ identities, even if this comes at a cost in the present.…”

Section: Discussionmentioning

confidence: 99%

The evolution of environmentally mediated social interactions and posthumous spite under isolation by distance

Mullon,

Peña,

Lehmann

2023

Preprint

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Many social interactions happen indirectly via modifications of environmental variables, e.g. through the depletion of renewable resources or the secretion of functional compounds. Here, we derive the selection gradient on a quantitative trait affecting the dynamics of such environmental variables that feedback on reproduction and survival in a patch-structured population that is finite, of constant size, and subject to isolation by distance. Our analysis shows that the selection gradient depends on how a focal individual influences the fitness of all future individuals in the population through modifications of the environmental variables they experience, weighted by the neutral relatedness between recipients and the focal. The evolutionarily relevant trait-driven environmental modifications are formalized as the extended phenotypic effects of an individual, which quantify how a trait change in the individual in the present affects the environmental variables in all patches at all future times. When the trait affects reproduction and survival through some payoff function, the selection gradient can be expressed in terms of extended phenotypic effects weighted by scaled-relatedness coefficients. We show how to compute extended phenotypic effects, relatedness, and scaled-relatedness coefficients using Fourier analysis, allowing us to investigate a broad class of environmentally mediated social interactions in a tractable way. We illustrate our approach by studying the evolution of a trait controlling the costly production of some lasting commons (e.g. a common-pool resource or a toxic compound) that can diffuse in space. We show that whether selection favours environmentally mediated altruism or spite depends on the spatial correlation between an individual's lineage and the commons originating from its patch. The sign of this correlation depends on interactions between dispersal patterns and the commons' renewal dynamics. More broadly, we suggest that selection can favour a wide range of social behaviours when these are mediated in space and time through environmental feedback.

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“…do spiteful behaviors selectively towards those who do not have green beard, then spiteful individuals are less likely to be recipients for spite than non-spiteful individuals; therefore, spiteful behavior can be adaptive (Bruner & Smead, 2022;Madgwick, 2020;. As seen thus far, in the above three mechanisms, if altruism is favored by natural selection, then spite is also favored by natural selection.…”

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confidence: 89%

Evolution of spite versus evolution of altruism through a disbandment mechanism

Kurokawa

2023

Preprint

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Altruism and spite are costly to the actor; therefore, from the perspective of natural selection, the existence of them is a mysterious phenomenon and require explanation. If altruistic individuals are more likely to be recipients for altruism than non-altruistic individuals, then altruism can be favored by natural selection. Similarly, if spiteful individuals are less likely to be recipients for spite than non-spiteful individuals, then spite can be favored by natural selection. Spite is altruism's evil twin or ugly sister of altruism. In some mechanisms (e.g. repeated interaction), if altruism is favored by natural selection, then spite is also favored by natural selection. In contrast, there is a situation which facilitates the evolution of altruism but is unlikely to facilitate the evolution of spite. Population structure is one typical example. Here we focus on the mechanism in which individuals choose to keep the interaction or stop the interaction according to the opponent's behavior. We, by using evolutionary game theory, investigate the evolution of altruism and the evolution of spite under this mechanism. Our model shows that the evolution of spite is less likely than the evolution of altruism. This main result provides a nice intuition for why altruism is more abundant than spite in general in the real world.

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Tag-based spite with correlated interactions

Cited by 7 publications

References 47 publications

The evolution of environmentally mediated social interactions and posthumous spite under isolation by distance

The evolution of environmentally mediated social interactions and posthumous spite under isolation by distance

The evolution of environmentally mediated social interactions and posthumous spite under isolation by distance

Evolution of spite versus evolution of altruism through a disbandment mechanism

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