Strange intruders are invading our part of the world, threatening our environment and our economy. These newcomers and their impact on our ecological balance are the focus of Invasion Ecology. A guide to learning skills for investigating the behaviours on non-native and native species. Studying invaders such as zebra mussels, chestnut blight, purple loosestrife, and Phragmites, you will explore how scientists are fighting these aggressors with biological controls. This student edition has three sections: 1) Background on the science of ecology and its place in the control of invasive species; 2) Protocols for practicing methods that scientists use in monitoring invasive species, such as early detection surveys, plot sampling, transect surveys, and decomposition studies; and 3) A series of helpful worksheets to guide you through your own interactive research. Invasion Ecology is the second volume in the four-part Environmental Inquiry curriculum series, designed to show you how to apply scientific knowledge to solving real-life problems.