ROGERS' PARADOX RECAST AND RESOLVED: POPULATION STRUCTURE AND THE EVOLUTION OF SOCIAL LEARNING STRATEGIES
ROGERS' PARADOX RECAST AND RESOLVED: POPULATION STRUCTURE AND THE EVOLUTION OF SOCIAL LEARNING STRATEGIES
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DOI：
10.1111/j.1558-5646.2009.00817.x
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发表时间：
2010-02-01
期刊：
影响因子：
3.3
通讯作者：
Laland, Kevin N.
中科院分区：
文献类型：
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作者：
Rendell, Luke;Fogarty, Laurel;Laland, Kevin N.
我们探索的演变依赖社会和asocial学习使用空间显式随机模型。我们的分析认为，四个进化策略的相对优点，两个纯策略（社会和社会学习）和两个有条件的策略（“关键的社会学习者”，只有当复制失败时才学会社会，和“有条件的社会学习者”，只有当社会学习失败时才复制）。我们发现，空间结构产生的结果，并不总是符合早期的理论分析，社会学习并没有提高平均个人健身平衡（罗杰斯悖论）的发现。虽然我们描述的情况下，纯社会学习的策略增加了个人的平均健身，我们发现，空间结构引入了一个新的悖论，这是社会学习可以传播，即使它降低了个人的平均健身低于asociallearners。我们还表明，关键的社会学习者和有条件的社会学习者都提供了上述悖论的解决方案，虽然我们发现了一些条件，其中纯（随机）的社会学习的竞争都有条件的策略。最后，我们考虑在各种条件下的批判性和有条件的社会学习的相对优点。
We explore the evolution of reliance on social and asocial learning using a spatially explicit stochastic model. Our analysis considers the relative merits of four evolved strategies, two pure strategies (asocial and social learning) and two conditional strategies (the "critical social learner," which learns asocially only when copying fails, and the "conditional social learner," which copies only when asocial learning fails). We find that spatial structure generates outcomes that do not always conform to the finding of earlier theoretical analyses that social learning does not enhance average individual fitness at equilibrium (Rogers' paradox). Although we describe circumstances under which the strategy of pure social learning increases the average fitness of individuals, we find that spatial structure introduces a new paradox, which is that social learning can spread even when it decreases the average fitness of individuals below that of asocial learners. We also show that the critical social learner and conditional social learner both provide solutions to the aforementioned paradoxes, although we find some conditions in which pure (random) social learning out-competes both conditional strategies. Finally, we consider the relative merits of critical and conditional social learning under various conditions.