Components of change in the evolution of learning and unlearned preference
Components of change in the evolution of learning and unlearned preference
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DOI：
10.1098/rspb.2009.0602
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发表时间：
2009-09-07
影响因子：
4.7
通讯作者：
Stephens, David W.
中科院分区：
文献类型：
--
作者：
Dunlap, Aimee S.;Stephens, David W.
动物学习中的一些现象似乎需要进化论的解释，例如动物学习和不学习的模式。虽然有几个模型考虑了进化如何影响学习，但我们测试这些模型的数据却很少。理论家一致认为环境变化是学习进化的核心因素。我们描述了一个数学模型和一个实验，测试了变化的两个组成部分：经验的可靠性和最佳行动的可预测性。使用果蝇的复制种群，我们改变了 30 代变化的统计模式。我们的结果提供了第一个实验证明，某些类型的环境变化有利于学习，而另一些则选择反对学习，这为对影响学习进化的选择性因素进行更细致的解释提供了第一个实验支持。
Several phenomena in animal learning seem to call for evolutionary explanations, such as patterns of what animals learn and do not learn. While several models consider how evolution should influence learning, we have very little data testing these models. Theorists agree that environmental change is a central factor in the evolution of learning. We describe a mathematical model and an experiment, testing two components of change: reliability of experience and predictability of the best action. Using replicate populations of Drosophila we varied statistical patterns of change across 30 generations. Our results provide the first experimental demonstration that some types of environmental change favour learning while others select against it, giving the first experimental support for a more nuanced interpretation of the selective factors influencing the evolution of learning.