Preface J. B. Cragg; 1. Introduction M. V. Brian; 2. Empirical data and demographic parameters C. Baroni-Urbani, G. Josens and G. J. Peakin; 3. Production by ants and termites M. G. Nielson and G. Josens; 4. Food and feeding habits of termites T. G. Wood; 5. Food and feeding habits of ants D. J. Stradling: Foraging by seed-harvesting ants W. G. Whitford; 6. Respiration and energy flow G. J. Peakin and G. Josens; 7. Nutrient dynamics of termites J. P. La Fage and W. L. Nutting; 8. Nutrient dynamics of ants A. Abbott; 9. The role of termites in ecosystems T. G. Wood and W. A. Sands; 10. The role of ants in ecosystems J. Petal: Comparison of various biomes B. Pisarski; Appendices; Bibliography; Index.