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Is cooperation viable in mobile organisms? Simple Walk Away rule favorsthe evolution of cooperation in groups

机译：合作在流动生物中可行吗？简单的走开规则有利于团队合作的发展

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The evolution of cooperation through partner choice mechanisms is often thought to involve relatively complex cognitive abilities. Using agent-based simulations, I model a simple partner choice rule, the "Walk Away" rule, where individuals stay in groups that provide higher returns (by virtue of having more cooperators), and "Walk Away" from groups providing low returns. Implementing this conditional movement rule in a public goods game leads to a number of interesting findings: (a) cooperators havea selective advantage when thresholds are high, corresponding to low tolerance for defectors, (b) high thresholds lead to high initial rates of movement and low final rates of movement (after selection), and (c) as cooperation is selected, the populationundergoes a spatial transition from high migration (and many small and ephemeral groups) to low migration (and large and stable groups). These results suggest that the very simple "Walk Away" rule of leaving uncooperative groups can favor the evolutionof cooperation and that cooperation can evolve in populations in which individuals are able to move in response to local social conditions. A diverse array of organisms are able to leave degraded physical or social environments. The ubiquitous nature ofconditional movement suggests that "Walk Away" dynamics may play an important role in the evolution of social behavior in both cognitively complex and cognitively simple organisms.
机译：人们通常认为通过伙伴选择机制进行的合作进化涉及相对复杂的认知能力。使用基于代理程序的模拟，我对简单的伙伴选择规则（“走开”规则）建模，其中个人停留在提供更高回报（由于拥有更多合作者）的组中，而“走开”则离开提供低回报的组。在公共物品博弈中实施这种有条件的移动规则会导致许多有趣的发现：（a）当阈值较高时，合作者具有选择优势，这对应于叛逃者的低容忍度;（b）高阈值导致较高的初始移动率;最终的迁徙率较低（在选定之后），以及（c）在选择合作时，人口经历了从高迁徙（以及许多小型和短暂的群体）到低迁徙（以及大而稳定的群体）的空间过渡。这些结果表明，离开不合作团体的非常简单的“走开”规则可以促进合作的发展，而合作可以在个人能够响应当地社会条件而迁移的人群中发展。各种各样的生物能够离开退化的物理或社交环境。条件运动的普遍性表明，“走开”动力学可能在复杂的和认知简单的生物体的社会行为演变中发挥重要作用。

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