Plant invaders: the threat to natural ecosystems.
In this book, which forms part of a series (the people and plants initiative), a review of the problems of invasive plants worldwide is presented. Chapter 1 covers the nature of plant invasions, including a definition of an invasive plant, plant invasion in relation to conservation and where in the world invasion is occurring. Chapter 2 describes how invasion occurs, including the invasion process, historical aspects of plant translocation, characteristics of invasive species, taxonomic patterns of invasion and how to predict invasions. Action against invasive plants is discussed in chapter 3, covering various aspects of control (including physical, chemical and biological), education and awareness, legislation, prevention of introduction and spread, information and recording, and future prospects. In chapter 4, case studies of 17 important invasive species are presented. In the final chapter, representative invasive species are presented, including a key of invasive species and a species list. Two appendices are also included; in the first, various herbicides are listed, as well as their possible impact on the environment, whilst in the second a selection of relevant addresses is given.