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Regional assemblages shaped by historical and contemporary factors: Evidence from a species-rich insect group

文献类型： 外文期刊

作者： Hao, Mengdi 1 ; Jin, Qian 1 ; Meng, Guanliang 3 ; Yang, Caiqing 1 ; Yang, Shenzhou 5 ; Shi, Zhiyong 1 ; Tang, Min 6 ; Liu 1 ;

作者机构： 1.Capital Normal Univ, Coll Life Sci, Beijing, Peoples R China

2.Jiangsu Acad Agr Sci, Suqian Inst Agr Sci, Suqian, Peoples R China

3.BGI Shenzhen, Shenzhen, Peoples R China

4.BGI Shenzhen, China Natl GeneBank, Shenzhen, Peoples R China

5.Fudan Univ, Sch Life Sci, Shanghai, Peoples R China

6.China Agr Univ, Dept Entomol, Beijing, Peoples R China

7.Guizhou Prov Ctr Dis Control & Prevent, Guiyang, Guizhou, Peoples R China

8.Smithsonian Inst, Natl Museum Nat Hist, Dept Paleobiol, Washington, DC 20560 USA

关键词： diversification; diversity pattern; DNA barcoding; gene flow; insects; spatial point pattern

期刊名称：MOLECULAR ECOLOGY （ 2020影响因子：6.185； 五年影响因子：6.801 ）

ISSN： 0962-1083

年卷期： 2020 年 29 卷 13 期

页码：

收录情况： SCI

摘要： 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.

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