Department of Mathematics, Jadavpur University, Kolkata, 700032, India.
Department of Environmental Science and Policy, University of California, Davis, CA, 95616, USA.
Sci Rep. 2023 Aug 31;13(1):14331. doi: 10.1038/s41598-023-41519-1.
We study the intricate interplay between ecological and evolutionary processes through the lens of the prisoner's dilemma game. But while previous studies on cooperation amongst selfish individuals often assume instantaneous interactions, we take into consideration delays to investigate how these might affect the causes underlying prosocial behavior. Through analytical calculations and numerical simulations, we demonstrate that delays can lead to oscillations, and by incorporating also the ecological variable of altruistic free space and the evolutionary strategy of punishment, we explore how these factors impact population and community dynamics. Depending on the parameter values and the initial fraction of each strategy, the studied eco-evolutionary model can mimic a cyclic dominance system and even exhibit chaotic behavior, thereby highlighting the importance of complex dynamics for the effective management and conservation of ecological communities. Our research thus contributes to the broader understanding of group decision-making and the emergence of moral behavior in multidimensional social systems.
我们通过囚徒困境博弈的视角研究生态和进化过程之间的复杂相互作用。但是,尽管之前关于自私个体之间合作的研究通常假设瞬时相互作用,但我们考虑了延迟,以研究这些延迟如何影响亲社会行为的潜在原因。通过分析计算和数值模拟,我们证明了延迟可能导致振荡,并且通过还包含利他主义自由空间的生态变量和惩罚的进化策略,我们探讨了这些因素如何影响种群和群落动态。根据参数值和每种策略的初始分数,所研究的生态进化模型可以模拟循环优势系统,甚至表现出混沌行为,从而强调复杂动态对于生态群落的有效管理和保护的重要性。因此,我们的研究有助于更全面地理解多维社会系统中的群体决策和道德行为的出现。