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首页> 外文期刊>Ecology letters >Distinctiveness magnifies the impact of biological invaders in aquatic ecosystems
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Distinctiveness magnifies the impact of biological invaders in aquatic ecosystems

机译:独特性放大了生物入侵者对水生生态系统的影响

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摘要

There exist few empirical rules for the effects of introduced species, reflecting the context-dependent nature of biological invasions. A promising approach toward developing generalizations is to explore hypotheses that incorporate characteristics of both the invader and the recipient system. We present the first general test of the hypothesis that an invader's impact is determined by the system's evolutionary experience with similar species. Through a meta-analysis, we compared the taxonomic distinctiveness of high- and low-impact invaders in several aquatic systems. We find that high-impact invaders (i.e. those that displace native species) are more likely to belong to genera not already present in the system.
机译:对于引入物种的影响,几乎没有经验规则,反映了生物入侵的背景相关性质。发展概括的一种有前途的方法是探索结合了入侵者和受体系统特征的假设。我们提出了一个假设的第一个一般检验,即入侵者的影响取决于系统对相似物种的进化经验。通过荟萃分析,我们比较了几种水生系统中高影响力和低影响力入侵者的分类学区别。我们发现,高影响力的入侵者(即那些取代本地物种的入侵者)更可能属于系统中尚未存在的属。

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