Evolutionary Game Theory and Cooperation

Darwinian fitness, its directional derivative, and Hamilton's rule for limited dispersal with class structure under within and between generation environmental stochasticity

The paper derives invasion fitness and its directional derivative for group-structured populations under environmental stochasticity, showing how Hamilton's rule can be deduced from it.

Evolution of the division of labor between two interacting public tasks

The paper investigates how interactions between two public tasks influence the evolution of division of labor, showing that specialists can coexist only when tasks interact and that bistability and hysteresis can occur.

Modelling pairwise and coalitional contests with reinforcement learning

The paper models pairwise and coalitional contests using reinforcement learning, finding that coalition advantages and border conflict costs promote intervention by neighbours.

Successful strategies in the voluntarily repeated Prisoner's Dilemma

This paper analyzes the repeated Prisoner's Dilemma with strategies that allow leaving partners, showing higher cooperation and replacement of classical strategies with those that sanction cheaters by leaving.

An exhaustive map of binary memory-two direct reciprocity over symmetric two-player games

The paper exhaustively analyzes binary memory-two strategies in symmetric two-player games to determine cooperation rates and Nash equilibria across all possible games.

The evolution of family reputation extends indirect reciprocity

This paper shows that inheriting family reputation enhances cooperation through indirect reciprocity, creating a feedback loop that stabilizes cooperative behavior in societies.

Promotion of cooperation in deme-structured populations with growth-merging dynamics

This study shows that cooperation is promoted in deme-structured populations under growth-merging dynamics with hard selection, but not under soft selection.

Conflict-Mediated Group Size Regulation: A Theory of Supraoptimal and Suboptimal Group Size

The paper develops a theory explaining how group size is regulated by conflicts and strategies, showing that group sizes often deviate from optimal due to fission and exclusion dynamics.

The evolution of socially modulated dispersal

This study investigates the evolutionary drivers and consequences of socially modulated dispersal, identifying three stable outcomes and conditions under which social modulation can be favoured.

The Darwinian evolution of political preferences and the collective strategies they support

This study models how political preferences evolve and impact collective strategies, showing that preference-based selection can improve group strategies under certain conditions.

Cooperation, privatization and cheating in microbial exoenzyme synthesis: theoretical analysis in view of biotechnological applications

This paper develops a mathematical framework to analyze microbial strategies in exoenzyme synthesis, showing how cooperation, privatization, and cheating affect population dynamics and coexistence.

The Environmental Games

The paper introduces Pure Environmental Games (PEGs) as a framework to model environmental selection by treating the environment as a strategy in evolutionary game theory, identifying new dynamic regimes like persistence under extinction.

Strong leaders promote cooperation in heterogeneous populations

This paper shows that emergent leadership in heterogeneous populations promotes cooperation through evolutionary game theory, especially when few individuals act as leaders.

Interaction range of common goods shapes Black Queen dynamics beyond the cheater-cooperator narrative

This paper presents an eco-evolutionary model showing that Black Queen dynamics can lead to either distributed or centralized common good production, depending on the interaction range among ecotypes.

Strategic coexistence theory for evolutionary games

This paper develops strategic coexistence theory to analyze strategy competition, showing how different mechanisms promote cooperation through distinct dynamical routes and enable coexistence.

Analyzing the dynamics in defense/counter-defense games among hosts and pathogens

The paper models the evolutionary dynamics of defense and counter-defense strategies between hosts and pathogens using game theory to show how these interactions lead to periodic strategy adjustments and fitness buffering.

The effects of group size and assortment on the evolution of division of labor

This study shows how group size, assortment, and payoff curvature influence the evolution of division of labor through public-good production.

Eco-evolutionary games in noisy environments

This study incorporates stochastic environmental dynamics into eco-evolutionary game theory, showing how noise can alter social outcomes and eco-evolutionary outcomes.

Network reciprocity reshaped by environmental knowledge and feedback

The paper examines how environmental knowledge and feedback influence the evolution of cooperation in structured populations, showing that knowledge can both promote and hinder cooperation depending on environmental dynamics.

Can public good producing subclones invade a population of non-producers?

The paper shows that public good-producing subclones can invade non-producer populations in structured environments due to spatial effects, challenging classical evolutionary game theory predictions.

Selection favors context-dependent bias in altruism

The paper shows that context-dependent altruism strategies outperform simple strategies in evolutionary simulations.

Fixation of a homozygote and dynamical characterization of the Price equation

The paper establishes conditions for allele fixation using the Price equation and genotype dynamics, showing equivalence between certain monotonicity conditions and implications for homozygote fixation.

Environmental feedback maintains cooperation in viruses

The paper shows environmental feedback maintains cooperation in viruses by altering coinfection rates and viral densities, and suggests defectors could be used as antiviral therapies.

Spectral requirements for cooperation

The paper derives a spectral criterion for the evolution of cooperation, showing that cooperation evolves when the leading eigenvalue of an interaction operator exceeds the benefit-to-cost ratio.

Group size dependent selection for cooperation versus freeloading in collective chemical defence

The paper shows that cooperation in chemical defense is more beneficial in smaller groups, while freeloaders have higher fitness in larger groups of pine sawfly larvae.

Direct and indirect benefits of cooperation in collective defense against predation

This study shows that cooperative defense in pine sawfly larvae provides both direct and indirect benefits, with individuals adjusting their contributions based on social context.

The key role of cheaters in the persistence of cooperation

This paper shows that cheaters can promote cooperation by enabling group survival in a multi-level selection model, challenging the classical view that cheaters destabilize cooperation.

Chimeric aggregative multicellularity in absence of kin discrimination

The paper investigates kin discrimination in Myxococcus xanthus, showing that the type VI secretion system (T6SS) mediates antagonism between distantly related strains, preventing chimeric fruiting body formation.

Eco-Evolutionary game dynamics with Three Strategies: how geometric analysis provides insights into stability

The paper extends evolutionary game models to three strategies, analyzing stability through geometric insights and demographic factors.

Phase separation and coexistence in spatial coordination games between microbes

This paper shows that spatial coordination games between microbes lead to phase separation and coexistence, with universal scaling consistent with experimental observations.