论文标题
合作的演变：个人的进化优势阻碍了人口的演变
The evolution of cooperation: an evolutionary advantage of individuals impedes the evolution of the population
论文作者
论文摘要
范围扩展是生物系统中的普遍过程，因此在生物进化中起着作用。使用基于随机过程的基于定量的个体方法，我们确定增强合作者相对于缺陷的固有的自我增殖优势是促进合作在扩张中的合作演变的更有效渠道，而不是削弱合作者从合作者那里获得损失的收益。凭借这种自我扩散的优势，合作者可以更容易地迅速殖民处女空间并建立空间隔离，这就像保护盾牌，可以进一步促进合作的发展。我们还表明，较低的细胞密度和迁移率对与缺陷的合作者的竞争具有积极影响。生物进化是基于个人之间的竞争，因此应该有利于自私的行为。但是，我们观察到一种违反直觉的现象，即个人的适应性趋化运动阻碍了人口的演变。这突出了个人与人口的利益之间的冲突。在人群之间的竞争中，个人的短视自私行为可能并不是那么受欢迎。这样的信息为处理合作带来了重要意义。
Range expansion is a universal process in biological systems, and therefore plays a part in biological evolution. Using a quantitative individual-based method based on the stochastic process, we identify that enhancing the inherent self-proliferation advantage of cooperators relative to defectors is a more effective channel to promote the evolution of cooperation in range expansion than weakening the benefit acquisition of defectors from cooperators. With this self-proliferation advantage, cooperators can rapidly colonize virgin space and establish spatial segregation more readily, which acts like a protective shield to further promote the evolution of cooperation in return. We also show that lower cell density and migration rate have a positive effect on the competition of cooperators with defectors. Biological evolution is based on competition between individuals and should therefore favor selfish behaviors. However, we observe a counterintuitive phenomenon that the evolution of a population is impeded by the fitness-enhancing chemotactic movement of individuals. This highlights a conflict between the interests of the individual and the population. The short-sighted selfish behavior of individuals may not be that favored in the competition between populations. Such information provides important implications for the handling of cooperation.
