引进物种
生态学
生物多样性
入侵物种
生物
营养水平
生物多样性公约
物种丰富度
海洋物种
全球生物多样性
作者
Andrea Antón,Nathan R. Geraldi,Catherine E. Lovelock,Eugenia T. Apostolaki,Scott Bennett,Just Cebrián,Dorte Krause‐Jensen,Núria Marbà,Paulina Martinetto,John M. Pandolfi,Julia Santana‐Garcon,Carlos M. Duarte
标识
DOI:10.1038/s41559-019-0851-0
摘要
Exotic species are a growing global ecological threat; however, their overall effects are insufficiently understood. While some exotic species are implicated in many species extinctions, others can provide benefits to the recipient communities. Here, we performed a meta-analysis to quantify and synthesize the ecological effects of 76 exotic marine species (about 6% of the listed exotics) on ten variables in marine communities. These species caused an overall significant, but modest in magnitude (as indicated by a mean effect size of g < 0.2), decrease in ecological variables. Marine primary producers and predators were the most disruptive trophic groups of the exotic species. Approximately 10% (that is, 2 out of 19) of the exotic species assessed in at least three independent studies had significant impacts on native species. Separating the innocuous from the disruptive exotic species provides a basis for triage efforts to control the marine exotic species that have the most impact, thereby helping to meet Aichi Biodiversity Target 9 of the Convention on Biological Diversity.
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