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How can alien species inventories and interception data help us prevent insect invasions?

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Academic year: 2021

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Fig. 1. Proportional representation of the areas of origin of the 341 non-indigenous insects established in Austria and Switzerland.
Figure 3 shows the taxonomic composition of the alien insects in Austria and Switzerland, which significantly differs from the composition of the native insect fauna in Europe (goodness of fit x 2 test; x 2 = 568.50, P < 0.001; the
Fig. 4. Proportions of insect orders and sub-orders in the 341 non-indigenous insect species in Austria and Switzerland originating from North America (black bars) compared to the North American insect fauna (Simberloff, 1986) (white bars)
Fig. 5. Proportion of insect orders and sub-orders in the non-indigenous insects intercepted by the national phytosanitary services in Europe during the period 1995–2004
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