Opening the species box: What microscopic models of neutral speciation have to say about macroevolution

Author:

Couvert ÉlisaORCID,Bienvenu FrançoisORCID,Duchamps Jean-JilORCID,Erard AdélieORCID,Miró Pina VerónicaORCID,Schertzer EmmanuelORCID,Lambert AmauryORCID

Abstract

AbstractIn the last two decades, lineage-based models of diversification, where species are viewed as particles that can divide (speciate) or die (become extinct) at rates depending on some evolving trait, have been very popular tools to study macroevolutionary processes. Here, we argue that this approach cannot be used to break down the inner workings of species diversification and that “opening the species box” is necessary to understand the causes of macroevolution.We set up a general framework for individual-based models of neutral speciation (i.e. no selection forces other than those acting against hybrids) that rely on a minimal number of mechanistic principles: (i) reproductive isolation is caused by excessive dissimilarity between pheno/genotypes; (ii) dissimilarity results from a balance between differentiation processes and homogenization processes; and (iii) dissimilarity can feed back on these processes by decelerating homogenization.We classify such models according to the main process responsible for homogenization: (1) clonal evolution models (ecological drift), (2) models of genetic isolation (gene flow) and (3) models of isolation by distance (spatial drift). We review these models and their specific predictions on macroscopic variables such as species abundances, speciation rates, interfertility relationships, phylogenetic tree structure…We propose new avenues of research by displaying conceptual questions remaining to be solved and new models to address them: the failure of speciation at secondary contact, the feedback of dissimilarity on homogenization, the emergence in space of reproductive barriers.

Publisher

Cold Spring Harbor Laboratory

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3