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首页> 外文期刊>Biological Theory: integrating development, evolution & cognition >Which Comes First in Major Transitions: The Behavioral Chicken, or the Evolutionary Egg?
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Which Comes First in Major Transitions: The Behavioral Chicken, or the Evolutionary Egg?

机译：在主要过渡中，首先出现的是：行为鸡还是进化卵？

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This paper takes a close look at the role of behavior in the "major transitions" in evolution—events during which inheritance and development, and therefore the process of adaptation by natural selection, are reorganized at a new level of compositional hierarchy—and at the requirements for sufficiently explaining these important events in the history of life. I argue that behavior played a crucial role in driving at least some of the major transitions. Because behavioral interactions can become stably organized in novelways on timescales faster than the lifetime of an organism, behavior can lead the way into a transition—becoming organized at the new level prior to inheritance and development. It is widely acknowledged that behavioral plasticitycan play an important role in evolution; environmental novelty can elicit novel behavior that may feed back on the evolutionary process through niche selection or cultural inheritance, for example (Jablonka and Lamb 2005). I argue here that not just novel behaviors but novel forms of behavioral organization (distributed or hierarchical control that produces functional coherence) can emerge, binding the evolutionary fates of a group of organisms which were previously independent in terms of behavior as well as reproduction, and leading the way into a transition to an aggregative or "higher-level" mode of reproduction.
机译：本文仔细研究了行为在进化的“主要转变”中的作用-在这些事件中，继承和发展以及自然选择的适应过程在新的组成层次上进行了重组。充分解释生活史中这些重要事件的要求。我认为行为在驱动至少某些主要转变中起着至关重要的作用。由于行为交互可以比生物体的生命更快地在时间尺度上以新颖的方式稳定地组织起来，因此行为可以引导这种转变-在继承和发展之前以新的层次进行组织。行为可塑性在进化中可以发挥重要作用，这一点已广为人知。例如，环境的新颖性可以引发新颖的行为，这些行为可以通过生态位选择或文化传承来反馈进化过程（Jablonka and Lamb 2005）。我在这里认为，不仅是新颖的行为，而且还会出现新的行为组织形式（产生功能一致性的分布式或等级控制），从而束缚了先前在行为和繁殖方面均独立的一组生物的进化命运。引领向聚合或“更高级别”复制方式的过渡。

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