Front cover; Preface; About the Editors; Contributors; Acknowledgments; Contents; Section one: Introduction; 1 Ecosystems and human systems: a framework for exploring the linkages; 2 Dynamic systems modeling; Section two: Models; 3 Human-ecosystems interactions: a basic dynamic integrated model; 4 Scale misperceptions and the spatial dynamics of a social-ecological system; 5 Sustainability, equity, and efficiency of irrigation infrastructures; 6 An introduction to mathematical models in fisheries ecology; Section three: Models and empirical studies in the real world.