Preface -- Notes on the line drawings -- Three independently evolved desert-lizard systems -- Productivity, climatic stability, and predictability -- Thermal relations, spatial, and temporal patterns of activity -- Modes of foraging and trophic relations -- Reproductive tactics -- Natural history miscellanea -- Analysis of community structure: theory and methods -- Empirical results: community organization -- Games computers play: pseudo-communities -- Dynamics: an area revisited -- Anatomical correlates of ecology -- Conclusions and prospects for further work -- Appendices: A. Lizard censuses and relative abundance; B. Annual precipitation statistics; C. Microhabitat resource matrices and niche breadths; D. Body temperature statistics; E. Diet summaries and food niche breadths; F. Reproductive statistics; G. Anatomical statistics