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Exotic fishes that are phylogenetically close but functionally distant to native fishes are more likely to establish

文献类型: 外文期刊

作者: Xu, Meng 1 ; Li, Shao-peng 4 ; Dick, Jaimie T. A. 5 ; Gu, Dangen 1 ; Fang, Miao 1 ; Yang, Yexin 1 ; Hu, Yinchang 1 ; Mu, Xidong 1 ;

作者机构: 1.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Guangzhou, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Prevent & Control Aquat Invas Alien Speci, Guangzhou, Peoples R China

3.Chinese Acad Fishery Sci, Key Lab Alien Species & Ecol Secur CAFS, Pearl River Fisheries Res Inst, Guangzhou, Peoples R China

4.East China Normal Univ, Sch Ecol & Environm Sci, Zhejiang Tiantong Forest Ecosyst Natl Observat &, Shanghai, Peoples R China

5.Queens Univ Belfast, Sch Biol Sci, Inst Global Food Secur, Belfast, Antrim, North Ireland

关键词: biological invasions; competition; Darwin's naturalization hypothesis; ecological similarity; environmental filtering; exotic species; functional traits; phylogenetic distance

期刊名称:GLOBAL CHANGE BIOLOGY ( 2021影响因子:13.211; 五年影响因子:13.111 )

ISSN: 1354-1013

年卷期:

页码:

收录情况: SCI

摘要: Since Darwin's time, degree of ecological similarity between exotic and native species has been assumed to affect the establishment success or failure of exotic species. However, a direct test of the effect of exotic-native similarity on establishment of exotics is scarce because of the difficulty in recognizing failures of species to establish in the field. Here, using a database on the establishment success and failure of exotic fish species introduced into 673 freshwater lakes, we evaluate the effect of similarity on the establishment of exotic fishes by combining phylogenetic and functional information. We illustrate that, relative to other biotic and abiotic factors, exotic-native phylogenetic and functional similarities were the most important correlates of exotic fish establishment. While phylogenetic similarity between exotic and resident fish species promoted successful establishment, functional similarity led to failure of exotics to become established. Those exotic species phylogenetically close to, but functionally distant from, native fishes were most likely to establish successfully. Our findings provide a perspective to reconcile Darwin's naturalization conundrum and suggest that, while phylogenetic relatedness allows exotic fish species to pre-adapt better to novel environments, they need to possess distinct functional traits to reduce competition with resident native fish species.

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