Defining the speciation continuum
Defining the speciation continuum
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DOI：
10.1111/evo.14215
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发表时间：
2021-05-05
期刊：
影响因子：
3.3
通讯作者：
Ravinet, Mark
中科院分区：
文献类型：
--
作者：
Stankowski, Sean;Ravinet, Mark
我们理解物种形成的一个主要障碍是，它通常发生在一个太长的时间框架内，无法从头到尾研究。物种形成连续体的概念为这个问题提供了某种解决方案;我们可以简单地从我们周围的众多物种形成事件中重建它，而不是观察整个过程。但是当我们谈论物种形成连续体时，我们真正的意思是什么？它真的能帮助我们理解物种形成吗？我们通过文献综述和对物种形成研究人员的在线调查来探讨这些问题。虽然大多数研究人员都熟悉这个概念，并认为它是有用的，但我们的调查显示，对于物种形成连续体实际上告诉我们的内容，存在广泛的分歧。部分原因是缺乏明确的定义。在这里，我们提供了一个明确的定义，是兼容的生物物种概念。也就是说，物种形成连续统是一个生殖隔离的连续统。在概述了替代定义的逻辑之后，我们解释了为什么试图从现在的种群中重建物种形成过程最终会失败。然后，我们概述了我们如何认为物种形成连续体概念可以继续作为理解我们周围的生殖隔离连续体的基础。
A primary roadblock to our understanding of speciation is that it usually occurs over a timeframe that is too long to study from start to finish. The idea of a speciation continuum provides something of a solution to this problem; rather than observing the entire process, we can simply reconstruct it from the multitude of speciation events that surround us. But what do we really mean when we talk about the speciation continuum, and can it really help us understand speciation? We explored these questions using a literature review and online survey of speciation researchers. Although most researchers were familiar with the concept and thought it was useful, our survey revealed extensive disagreement about what the speciation continuum actually tells us. This is due partly to the lack of a clear definition. Here, we provide an explicit definition that is compatible with the Biological Species Concept. That is, the speciation continuum is a continuum of reproductive isolation. After outlining the logic of the definition in light of alternatives, we explain why attempts to reconstruct the speciation process from present-day populations will ultimately fail. We then outline how we think the speciation continuum concept can continue to act as a foundation for understanding the continuum of reproductive isolation that surrounds us.