2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/147355Population dynamics in random ecological networks are investigated by analyzing a simple deterministic equation. It is found that a sequence of abrupt changes of populations punctuating quiescent states characterize the long time behavior. An asymptotic analysis is developed by introducing a log-scaled time, and it is shown that such a dynamical process behaves as non-steady weak chaos in which population disturbances grow algebraically in time. Also, some relevance of our study to taxonomic data of biological extinction is mentioned.10 pages (Revtex) + 4 figures (postscript)Chaotic DynamicsQuantitative Biologytext