Published by Sinauer Associates, an imprint of Oxford University Press. The new fourth edition of Ecology maintains its focus on providing an easy-to-read and well-organized text for instructors and students to explore the basics of ecology. This edition also continues with an increasing emphasis on enhancing student quantitative and problem-solving skills. A new Hone Your Problem-Solving Skills series has been added to the set of review questions at the end of each chapter. The questions expose students to hypothetical situations or existing data sets,and allow them to work through data analysis and interpretation to better understand ecological concepts.