Evolution and Co-Evolution in a Rugged Fitness Landscape
We consider a variant of a simple, proto-typical model for biological evolution suggested by S. Kauffman [1, 2, 3, 4]: the co-evolution of abstract haploid organisms with a single copy of chromosomes. Evolution in this model is driven by random mutations of individual genes. Each species evolves in a fitness landscape which represents those aspects of its environment that remain unchanged on the time-scale of evolution. The fitness of any species depends on its position in its fitness landscape and on the state of other species. Species are, so to speak, part of each others effective landscapes. These may therefore change with time as species evolve.
KeywordsConfiguration Space Fitness Landscape Sand Pile Model Freeze Phase Niels Bohr Institute
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- S. A. Kauffman, Origins of Order: Self-Organization and Selection in Evolution (Oxford Univ. Press, Oxford, 1990)Google Scholar
- H. Flyvbjerg and B. Lautrup, Evolution in a Rugged Fitness Landscape, NBI-CS-92-32; submitted to Phys. Rev. A.Google Scholar
- P. Bak, H. Flyvbjerg and B. Lautrup, Co-evolution in a Rugged Fitness Landscape, NBI-CS-92-33; submitted to Phys. Rev. A.Google Scholar
- B. Derrida and G. Weisbuch, J. Physique 47 (1987) 1297Google Scholar
- P. Bak and H. Flyvbjerg, unpublishedGoogle Scholar