Now in its seventh edition, this landmark textbook has helped to define introductory ecology courses for over four decades. With a dramatic transformation from previous editions, this text helps lecturers embrace the challenges and opportunities of teaching ecology in a contemporary lecture hall. The text maintains its signature evolutionary perspective and emphasis on the quantitative aspects of the field, but it has been completely rewritten for today's undergraduates. Modernized in a new streamlined format, from 27 to 23 chapters, it is manageable now for a one-term course. Chapters are organized around four to six key concepts that are repeated as major headings and repeated again in streamlined summaries. Ecology: The Economy of Nature is available with LaunchPad. LaunchPad combines an interactive ebook with high-quality multimedia content and ready-made assessment options, including LearningCurve adaptive quizzing. See `Instructor Resources' and `Student Resources' for further information.