one of the 100 worst alien species in Europe, click here to see the full list.
22nd May marks the International Day for Biological Diversity (IDB) - this year the focus is on Invasive Alien Species http://www.cbd.int/idb/2009/
DAISIE reports that 11,000 alien species have invaded Europe http://www.issg.org/issg_map/ europe.html
Search regions to explore the alien species threats across Europe, for 70 inland and 48 coastal and marine areas.