1. Pacemakers in aggregation fields of Dictyostelium discoideum: does a single cell suffice?

   • G. DeYoung
   • P. B. Monk
   • H. G. Othmer

   OriginalPaper Pages: 487 - 517

2. An example of a regular inbreeding system with cubic ancestral growth that preserves some genetic variability

   • Peter Arzberger

   OriginalPaper Pages: 519 - 533

3. Results for generalized regular inbreeding systems

   • Peter Arzberger

   OriginalPaper Pages: 535 - 550

4. Stability of discrete age-structured and aggregated delay-difference population models

   • M. O. Bergh
   • W. M. Getz

   OriginalPaper Pages: 551 - 581

5. Convergence to constant equilibrium for a density-dependent selection model with diffusion

   • Roger Lui

   OriginalPaper Pages: 583 - 592

6. Announcement

   Announcement Pages: 593 - 593