A general theory of ecology / Samuel M. Scheiner and Michael R. Willig -- Perspectives on the role of theory in ecology -- Theory makes ecology evolve / Jurek Kolasa -- A general, unifying theory of ecology? / Jay Odenbaugh -- Constituent theories of ecology -- Foraging theory / Andrew Sih -- Ecological niche theory / Jonathan Chase -- Single species population dynamics and its theoretical underpinnings / Alan Hastings -- Natural enemy-victim interactions: do we have a unified theory yet? / Robert D. Holt -- The metacommunity concept and its theoretical underpinnings / Mathew A. Leibold -- Domain and propositions of succession theory / Steward T. A. Pickett, Scott J. Meiners, and Mary L. Cadenasso -- The equilibrium theory of island biogeography / Dov Sax and Steven D. Gaines -- Theories of ecosystem ecology / Ingrid C. Burke and William K. Lauenroth -- Perspectives on global change theory / Debra P. C. Peters, Brandon T. Bestelmeyer, and Alan K. Knapp -- A theory of ecological gradients: a framework for aligning data and models / Gordon A. Fox, Samuel M. Scheiner, and Michael R. Willig -- Biogeographical gradient theory / Robert K. Colwell -- The state of theory in ecology / Michael R. Willig and Samuel M. Scheiner.