Authors: Lorenzo Lazzaro Bruno Foggi Giulio Ferretti Giuseppe Brundu
Publish Date: 2016/02/17
Volume: 18, Issue: 5, Pages: 1317-1333
Abstract
For the first time we tested the European and Mediterranean Plant Protection Organization EPPO prioritization process EPP on 212 alien plant species thriving in the Tuscan Archipelago Central Italy We compared the results of the EPPO procedure with those of the Australian Weed Risk Assessment AWRA system The two methods were also tested against the categorization performed at the national and local level by a panel of experts Our results suggest that both methods accurately predict the invasiveness of species already present in the Tuscan Archipelago However the total numbers of species included in the highest risk categories by the two methods differed greatly with the EPPO prioritization process including fewer species in the highest risk class The two methods differed in the ability to correctly detect the invasive species with the AWRA method being more conservative but at cost of more species in the highest risk class Using Generalized Linear Models we showed that both methods suffer from some degree of dependence from one or more of the tested explanatory variables life span year of first record The results suggest that the choice of a risk assessment method should be driven by the main aim of the assessment ie distinguishing between a more predictive tool AWRA and a prioritization tool EPP for already introduced species
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