Experimental evidence that local interactions select against selfish behaviour
Experimental evidence that local interactions select against selfish behaviour
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DOI：
10.1111/ele.13734
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发表时间：
2021-03-23
期刊：
影响因子：
8.8
通讯作者：
Rudolf, Volker
中科院分区：
文献类型：
--
作者：
Boots, Mike;Childs, Dylan;Rudolf, Volker
社会行为如何进化仍然是进化生物学中最具争议性的问题之一。一个重要的理论预测是，当生物由于有限的扩散或强烈的社会联系而在局部相互作用时，出现的种群结构可能有利于合作而不是对抗。我们通过在昆虫实验室模型系统中直接操纵种群空间结构，并测量对食人族极端自私行为进化的影响，对这一理论进行了实验测试。我们表明，正如该理论所预测的那样，在更有限的扩散环境中进化的印度粉蛾幼虫是因为食人率较低而被选择的。这一点很重要，因为它表明，地方互动对自私行为具有选择性。因此，我们在自然界中看到的普遍存在的种群结构变化是一种简单的机制，可以帮助解释我们在自然界中看到的自私和合作行为的变化。
How social behaviours evolve remains one of the most debated questions in evolutionary biology. An important theoretical prediction is that when organisms interact locally due to limited dispersal or strong social ties, the population structure that emerges may favour cooperation over antagonism. We carry out an experimental test of this theory by directly manipulating population spatial structure in an insect laboratory model system and measuring the impact on the evolution of the extreme selfish behaviour of cannibalism. We show that, as predicted by the theory, Indian meal moth larvae that evolved in environments with more limited dispersal are selected for lower rates of cannibalism. This is important because it demonstrates that local interactions select against selfish behaviour. Therefore, the ubiquitous variation in population structure that we see in nature is a simple mechanism that can help to explain the variation in selfish and cooperative behaviours that we see in nature.