1996/09/11 by Guillermo Abramson
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · Social Sciences · #Biology #Computer science #Ecology #Evolution and Genetic Dynamics #Evolutionary Game Theory and Cooperation #Extinction (optical mineralogy) #Food chain #Natural selection #Paleontology #Population #Predation #Predator #Selection (genetic algorithm) #Theoretical and Computational Physics #adap-org #cond-mat #nlin.AO #q-bio
paper · pdf · doi:10.1103/physreve.55.785
16 pages (LaTeX type, RevTeX style), including 6 figures in gif format. To be published in Phys. Rev. E (prob. Dic. 96)
arxiv created 1996/09/11 · openalex publication_date 1997/01/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present numerical results based on a simplified ecological system in evolution, showing features of extinction similar to that claimed for the biosystem on Earth. In the model each species consists of a population in interaction with the others, that reproduces and evolves in time. Each species is simultaneously a predator and a prey in a food chain. Mutations that change the interactions are supposed to occur randomly at a low rate. Extinctions of populations result naturally from the predator-prey dynamics. The model is not pinned in a fitness variable, and natural selection arises from the dynamics.