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Global ecological impacts of marine exotic species

AuthorsAnton, Andrea; Geraldi, Nathan R.; Lovelock, Catherine E.; Apostolaki, Eugenia T.; Bennett, Scott; Cebrian, Just; Krause-Jensen, Dorte; Marbà, Núria ; Martinetto, Paulina; Pandolfi, John M.; Santana Garçon, Julia; Duarte, Carlos M.
KeywordsConservation biology
Invasive species
Issue Date8-Apr-2019
PublisherSpringer Nature
CitationNature Ecology & Evolution 3: 787-800 (2019)
AbstractExotic 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.
Publisher version (URL)http://doi.org/10.1038/s41559-019-0851-0
Identifiersdoi: 10.1038/s41559-019-0851-0
e-issn: 2397-334X
Appears in Collections:(IMEDEA) Artículos
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