Modern ecology, a complex and diverse field, is often difficult to introduce to undergraduate students in a way that conveys the excitement and enthusiasm that ecologists feel for their subject. In this text, the authors aim to inspire students by adopting a new approach to teaching ecology, treating the field as made up of several different concept-based subdisciplines. The text discusses six different kinds of ecology: landscape, physiological, eco-system, population, community and behavioural, focusing on the kind of questions ecologists ask about their world. Ideal for introductory courses, the book also covers the history of ecology and encourages students to apply concepts to new organisms, locations or applications. It gives students an accessible, engaging introduction to ecology, and provides a firm basis for choosing advanced courses and careers.