Contributors 1: John J. Magnuson, Timonth K. Kratz, and Barbara J. Benson: The Challenge of Time and Space in Ecology I CONCEPTUAL APPROACHES 2: Katherine E. Webster, Carl J. Bowser, Mary P. Anderson, and John D. Lenters: Understanding the Lake-Groundwater System: Just Follow the Water 3: Timothy K. Kratz, Katherine E. Webster, Joan L. Riera, David B. Lewis, and Amina I. Pollard: Making Sense of the Landscape: Geomorphic Legacies and the Landscape Position of Lakes 4: Shelley E. Arnott, John J. Magnuson, Stanley I. Dodson, and Alison C. C. Colby: Lakes as Islands: Biodiversity, Invasion, and Extinction 5: John J. Magnuson, Timothy K. Kratz, Barbara J. Benson, and Katherine E. Webster: Coherent Dynamics among Lakes 6: Joan L. Riera, Timothy K. Kratz, and John J. Magnuson: Generalization from Intersite Research II DRIVERS OF LONG-TERM DYNAMICS 7: John J. Magnuson, Barbara J. Benson, John D. Lenters, and Dale M. Robertson: Climate-Driven Variability and Change 8: Karen A. Wilson and Thomas R. Hrabik: Ecological Change and Exotic Invaders 9: Thomas M. Frost, Janet M. Fischer, Patrick L. Brezonik, Maria J. Gonzalez, Timothy K. Kratz, Carl J. Watras, and Katherine E. Webster: The Experimental Acidification of Little Rock Lake 10: David E. Armstrong, George H. Lauster, Beth L. Sanderson, David B. Lewis, and Thomas M. Frost: Jumping In: Within-Lake Processes and Dynamics 11: Bradley S. Jorgensen, David Nowacek , Richard C. Stedman, and Kathy Brasier: People in a Forested Lake District 12: Stephen R. Carpenter, Richard C. Lathrop, Peter Nowak, Elena M. Bennett, Tara Reed, and Patricia A. Soranno: The Ongoing Experiment: Restoration of Lake Mendota and its Watershed III DEVELOPING AND IMPLEMENTING LONG-TERM ECOLOGICAL RESEARCH 13: Barbara Benson, Paul Hanson, Jonathan Chipman, and Carl Bowser: Breaking the Data Barrier: Research Facilitation through Information Management 14: John J. Magnuson, Barbara J. Benson, Timothy K. Kratz, David E. Armstrong, Carl J. Bowser, Alison C. C. Colby, Timothy W. Meinke, Pamela K. Montz, and Katherine E. Webster: Origin, Operation, Evolution, and Challenges IV SUMMARY AND SYNTHESIS 15: Barbara J. Benson, Timothy K. Kratz, and John J. Magnuson: Synthetic Summary and Prospective