'There are thousands of them': The invasive species that's taking over northern Italy - Why citizen scientists are key in the fight against invasive species - Calls to curb invasive species spread via untreated water transfer in England and Wales - A nature conservation paradox: Invasive species are often threatened in their native habitat - Can eating invasive species stop them spreading? - Researchers' new outreach strategy sets blueprint for detecting invasive species in Florida - Accurately weighing costs and benefits of different methods for controlling invasive species - Small Business: Tackling invasive species starts in your backyard