Regional assemblages shaped by historical and contemporary factors: Evidence from a species-rich insect group
Regional assemblages shaped by historical and contemporary factors: Evidence from a species-rich insect group
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由不同的历史和当代因素塑造的区域组合：来自物种丰富的昆虫群的证据。
DOI：
10.1111/mec.15412
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发表时间：
2020-07-01
影响因子：
4.9
通讯作者：
Zhang, Ai-bing
中科院分区：
文献类型：
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作者：
Hao, Mengdi;Jin, Qian;Zhang, Ai-bing
了解多样性模式需要考虑历史和当代因素在社区聚集中的作用。在这里，我们比较了从中国北方太行山和燕山采集的两种蛾类组合的多样性模式，并使用多状态物种形成和灭绝模型进行了祖先范围重建，以追踪这些模式的起源。此外，我们估计了两种蛾类组合的多样化率，并探讨了当代生态因素的影响。通过 DNA 条形码分析和形态学分析，我们从 7,788 个样本中鉴定出了属于 23 个科的 835 个物种。燕山地区的蛾类物种多样性高于太行山地区。祖先范围分析表明燕山是起源，历史上有从燕山到太行的重要传播。在群落之间发现了不对称多样化、人口扩张以及频繁且大量的基因流动。此外，扩散限制或环境过滤和扩散限制的联合效应被推断为塑造当前多样性模式的主要驱动力。总之，我们证明，结合历史和当代因素的多尺度（群落、种群和物种水平）分析可有助于描述有助于群落组装和多样性模式的因素。
Understanding diversity patterns requires accounting for the roles of both historical and contemporary factors in the assembly of communities. Here, we compared diversity patterns of two moth assemblages sampled from Taihang and Yanshan mountains in Northern China and performed ancestral range reconstructions using the Multi-State Speciation and Extinction model, to track the origins of these patterns. Further, we estimated diversification rates of the two moth assemblages and explored the effects of contemporary ecological factors. From 7,788 specimens we identified 835 species belonging to 23 families, using both DNA barcode analysis and morphology. Moths in Yanshan mountains showed higher species diversity than in Taihang mountains. Ancestral range analysis indicated Yanshan as the origin, with significant historical dispersals from Yanshan to Taihang. Asymmetrical diversification, population expansion, along with frequent and considerable gene flow were detected between communities. Moreover, dispersal limitation or the joint effect of environment filtering and dispersal limitation were inferred as main driving forces shaping current diversity patterns. In summary, we demonstrate that a multiscale (community, population and species level) analysis incorporating both historical and contemporary factors can be useful in delineating factors contributing to community assembly and patterning in diversity.