Abundance-distributions in artificial life and stochastic models: "Age and area" revisited

Chris Adami, Charles Brown, Michael R. Haggerty

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations


Using an artificial system of self-replicating strings, we show a correlation between the age of a genotype and its abundance that reflects a punctuated rather than gradual picture of evolution, as suggested long ago by Willis. In support of this correlation, we measure genotype abundance distributions and find universal coefficients. Finally, we propose a simple stochastic model which describes the dynamics of equilibrium periods and which correctly predicts most of the observed distributions.

Original languageEnglish (US)
Title of host publicationAdvances in Artificial Life - 3rd European Conference on Artificial Life, Proceedings
Number of pages12
ISBN (Print)3540594965, 9783540594963
StatePublished - Jan 1 1995
Externally publishedYes
Event3rd European Conference on Artificial Life, ECAL 1995 - Granada, Spain
Duration: Jun 4 1995Jun 6 1995

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other3rd European Conference on Artificial Life, ECAL 1995

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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