1. Periodic response to periodic forcing of the Droop equations for phytoplankton growth

   • Mercedes Pascual

   OriginalPaper Pages: 743 - 759

2. Fluctuations in circulating cell numbers following chemotherapy or bone marrow transplant

   • Helmut Schwegler
   • Michael C. Mackey

   OriginalPaper Pages: 761 - 770

3. Pioneer exclusion in a one-hump discrete pioneer-climax competitive system

   • John E. Franke
   • Abdul-Aziz Yakubu

   OriginalPaper Pages: 771 - 787

4. The relationship between the transition matrix model and the diffusion model

   • Takenori Takada
   • Toshihiko Hara

   OriginalPaper Pages: 789 - 807

5. Population size dependent incidence in models for diseases without immunity

   • Jinshi Zhou
   • Herbert W. Hethcote

   OriginalPaper Pages: 809 - 834

6. Some relations between different characteristics of selection

   • Emmanuil E. Shnol
   • Alexey S. Kondrashov

   OriginalPaper Pages: 835 - 840

7. Analysis and computer simulation of accretion patterns in bacterial cultures

   • Chichia Chiu
   • Frank C. Hoppensteadt
   • Willi Jäger

   OriginalPaper Pages: 841 - 855

8. Modeling the role of viral disease in recurrent phytoplankton blooms

   • Edward Beltrami
   • T. O. Carroll

   OriginalPaper Pages: 857 - 863

9. Response of a solutivory chain to a nutrient pulse

   • Frank C. Hoppensteadt
   • Paul M. Johnson

   Research Announcement Pages: 865 - 867