1. Models of the influence of predation on aspect diversity in prey populations

   • Simon A. Levin
   • Lee A. Segel

   OriginalPaper Pages: 253 - 284

2. Top predator persistence in differential equation models of food chains: The effects of omnivory and external forcing of lower trophic levels

   • Thomas C. Gard

   OriginalPaper Pages: 285 - 299

3. Poisson convergence on continuous time Branching Random Walks and multistage carcinogenesis

   • Norbert Lenz

   OriginalPaper Pages: 301 - 307

4. Small amplitude periodic waves for the FitzHugh-Nagumo equations

   • B. D. Sleeman

   OriginalPaper Pages: 309 - 325

5. A mathematical model of biological evolution

   • K. Ishii
   • H. Matsuda
   • N. Ogita

   OriginalPaper Pages: 327 - 353

6. Further results on the survival of a gene represented in a founder population

   • D. J. Daley
   • Peter Hall
   • C. C. Heyde

   OriginalPaper Pages: 355 - 363

7. Aggregation of cell surface receptors by multivalent ligands

   • Catherine A. Macken
   • Alan S. Perelson

   Research Announcement Pages: 365 - 370