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Assessing the global threat of invasive species to marine biodiversity
Molnar, J.L.; Gamboa, R.L.; Revenga, C.; Spalding, M.D. (2008). Assessing the global threat of invasive species to marine biodiversity. Front. Ecol. Environ. 6: 485-492 + suppl. information (25 pp). hdl.handle.net/10.1890/070064
In: Frontiers in Ecology and the Environment. Ecological Society of America (ESA): Washington, DC. ISSN 1540-9295; e-ISSN 1540-9309
Peer reviewed article  

Available in  Authors 
Document type: Review

Keywords
    Alien species
    Biodiversity
    Impacts
    Marine

Authors  Top 
  • Molnar, J.L.
  • Gamboa, R.L.
  • Revenga, C.
  • Spalding, M.D.

Abstract
    Although invasive species are widely recognized as a major threat to marine biodiversity, there has been no quantitative global assessment of their impacts and routes of introduction. Here, we report initial results from the first such global assessment. Drawing from over 350 databases and other sources, we synthesized information on 329 marine invasive species, including their distribution, impacts on biodiversity, and introduction pathways. Initial analyses show that only 16% of marine ecoregions have no reported marine invasions, and even that figure may be inflated due to under-reporting. International shipping, followed by aquaculture, represent the major means of introduction. Our geographically referenced and publicly available database provides a framework that can be used to highlight the invasive taxa that are most threatening, as well as to prioritize the invasion pathways that pose the greatest threat.

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