Features full-color photos and descriptions of some 175 alien species--both terrestrial and aquatic - Detailed species accounts include information on identifying characteristics, effects on the ecosystem, and effective management techniques - Second edition includes 23 additional species and updates throughout Sylvan Kaufman consults, writes, and teaches on ecology, botany, and restoration topics through her business, Sylvan Green Earth Consulting. She lives in Denton, Maryland. Wallace Kaufman is a science writer and author of several popular nature books, including Coming Out of the Woods (978-0-7382-0488-8), No Turning Back (978-0-595-00099-9), and The Beaches Are Moving (978-0-8223-0574-3). He lives in Eugene, Oregon.