Speciation-by-Extinction.

IF 6.1 1区 生物学 Q1 EVOLUTIONARY BIOLOGY
Glenn F Seeholzer, Robb T Brumfield
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引用次数: 0

Abstract

Extinction is a dominant force shaping patterns of biodiversity through time; however its role as a catalyst of speciation through its interaction with intraspecific variation has been overlooked. Here, we synthesize ideas alluded to by Darwin and others into the model of "speciation-by-extinction" in which speciation results from the extinction of intermediate populations within a single geographically variable species. We explore the properties and distinguishing features of speciation-by-extinction with respect to other established speciation models. We demonstrate its plausibility by showing that the experimental extinction of populations within variable species can result in speciation. The prerequisites for speciation-by-extinction, geographically structured intraspecific variation and local extinction, are ubiquitous in nature. We propose that speciation-by-extinction may be a prevalent, but underappreciated, speciation mechanism.

物种灭绝
随着时间的推移,灭绝是影响生物多样性模式的主导力量;然而,灭绝通过与种内变异的相互作用而催化物种变异的作用却一直被忽视。在这里,我们将达尔文等人的观点归纳为 "物种灭绝 "模式,即物种灭绝是单一地理变异物种内部中间种群灭绝的结果。我们探讨了 "物种灭绝演化 "模式与其他已确立的物种演化模式的不同之处。我们通过证明可变物种内种群的实验性灭绝可以导致物种的形成来证明其合理性。物种灭绝模式的先决条件--地理结构上的种内变异和局部灭绝--在自然界中无处不在。我们认为灭绝物种可能是一种普遍存在但未被充分重视的物种形成机制。
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来源期刊
Systematic Biology
Systematic Biology 生物-进化生物学
CiteScore
13.00
自引率
7.70%
发文量
70
审稿时长
6-12 weeks
期刊介绍: Systematic Biology is the bimonthly journal of the Society of Systematic Biologists. Papers for the journal are original contributions to the theory, principles, and methods of systematics as well as phylogeny, evolution, morphology, biogeography, paleontology, genetics, and the classification of all living things. A Points of View section offers a forum for discussion, while book reviews and announcements of general interest are also featured.
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