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Threat of invasive pests from within national borders

Publication Type  Journal Article
Year of Publication  2010
Authors  Paini, D.; Worner, S.; Cook, D.; De Barro, P.; Thomas, M.
Journal Title  Nature Communications
Journal Date  11/2010
Publisher  Nature Publishing Group
ISSN Number  2041-1723

Predicting and ranking potential invasive species present significant challenges to researchers and biosecurity agencies. Here we analyse a worldwide database of pest species assemblages to generate lists of the top 100 insect pests most likely to establish in the United States and each of its 48 contiguous states. For the United States as a whole, all of the top 100 pest species have already established. Individual states however tend to have many more 'gaps' with most states having at least 20 species absent from their top 100 list. For all but one state, every exotic pest species currently absent from a state's top 100 can be found elsewhere in the contiguous United States. We conclude that the immediate threat from known invasive insect pests is greater from within the United States than without. Our findings have potentially significant implications for biosecurity policy, emphasizing the need to consider biosecurity measures beyond established national border interventions.


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Threat of invasive pests from within national borders

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