1. A threshold theorem for the general epidemic in discrete time

   • F. de Hoog
   • J. Gani
   • D. J. Gates

   OriginalPaper Pages: 113 - 121

2. Migration-selection polymorphism in dioecious populations

   • Thomas Nagylaki

   OriginalPaper Pages: 123 - 131

3. Stochastic instability and Liapunov stability

   • S. D. Tuljapurkar
   • J. S. Semura

   OriginalPaper Pages: 133 - 145

4. Time-periodic oscillations in a model for the respiratory process of a bacterial culture

   • V. Fairén
   • M. G. Velarde

   OriginalPaper Pages: 147 - 157

5. Global stability of predator-prey interactions

   • Gary W. Harrison

   OriginalPaper Pages: 159 - 171

6. Density-dependent regulation of spatially distributed populations and their asymptotic speed of spread

   • Horst R. Thieme

   OriginalPaper Pages: 173 - 187

7. A stochastic gompertz model with hereditary effect

   • Prajneshu

   OriginalPaper Pages: 189 - 196

8. Excitation of paramecium

   • C. Hook
   • E. Hildebrand

   OriginalPaper Pages: 197 - 214

9. Erratum

   • H. L. Frisch
   • I. J. Gotham

   Erratum Pages: 215 - 215