The new Elements of Ecology Update, Fourth Edition, Learning Package includes the text by Robert and Tom Smith, and two brand new supplements at no extra price - the Ecology Place CD-Rom, a rich media supplement which contains 26 interactive field experiments and tutorials, and the Ecology Action Guide, a print supplement which provides information on topics such as environmental job opportunities, green groups, organizations, and sustainability.

With its unique modular organization and striking four-color art program Elements of Ecology Update, Fourth Edition, Learning Package provides a clear introduction to ecology. Far reaching in its coverage, the Fourth Edition Update not only presents the principles of ecology but shows their relationship to today's most pressing environmental issues in a way that is meaningful to students. New Ecological Application essays synthesize concepts to illustrate their relevance to real-life problems. Chapter 26, Global Environmental Change has been revised to incorporate new research from this rapidly changing field. New Elements of Ecology Companion web site includes student and instructor resources geared specifically to the text.