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Elements of Ecology, Ninth Edition continues to explain ecological processes clearly and concisely, with a greater emphasis on the relevance of ecology to everyday life and the human impact on ecosystems. This dramatically revised edition discusses issues of human ecology throughout the text and provides a greater variety of opportunities for students to learn, practice, and develop quantitative and analytical skills. Current research examples and other content updates are supported by more than 200 redesigned, full-color illustrations, graphs, and tables.

Elements of Ecology now includes MasteringBiology^®, an online homework, tutorial, and assessment program that improves results by helping students quickly master concepts both in and outside the classroom. The book and MasteringBiology work together to create a classroom experience that enables students to succeed in biology and ecology courses.

With Elements of Ecology, 9/e you can:

• Personalize Learning with MasteringBiology: MasteringBiology improves results by helping students quickly master ecology concepts both in and outside the classroom.
• Help Students Interpret and Analyze Ecology Data: New and expanded in-text instruction and practice is provided in Interpreting Ecological Data figure questions, in-depth Quantifying Ecology boxes, and Analyzing Ecological Data case studies.  Many are expanded and assignable in MasteringBiology.
• Keep Your Course Current and Relevant while also keeping students focused on learning essential concepts: With updated “Field Studies” and research references throughout, the Ninth Edition also provides a streamlined discussion on metapopulations and integrates human ecology concepts into all chapters.   

• 0321934180 / 9780321934185: Elements of Ecology, 9/e
• 0321976010 / 9780321976017: MasteringBiology with Pearson eText -- ValuePack Access Card -- for Elements of Ecology