The impact of invasive oganisms is second only to habitat loss as athreat to biodiversity and yet, despite increasing ecologicalawareness, people remain largely unaware of these plants and animalsand their potentially devastating impact. Although most biologicalintroductions fail, many prove successful and these can provedisastrous for native fauna and flora.This field guide will enable the identification of a range of invasiveplants and animals now found in Britain. Though these species are ofparticular concern to conservationists there has previously been nounified guide devoted to their recognition. This book will act both asan ID guide, appealing to the amateur naturalist, and as an importanttool for ecologists and land managers attempting to tackle the problemposed by invasive species.