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Evolutionary stagnation due to pattern-pattern interactions in a coevolutionary predator-prey model.

N J Savill·P Hogeweg
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Abstract

We consider a spatially structured model of a coevolutionary predator-prey system with interactions in a one-dimensional phenotype space. We show that in phenotype space predators and prey organize themselves into distinct clusters of phenotypes called quasi-species. The prey quasi-species also cluster in patches in real space. As the prey quasi-species evolve away from the predator quasi-species (in phenotype space) the prey patch size reduces and the single predator quasi-species is inhibited from evolving toward either of the two prey species. We show that it is the interaction between the phenotype space patterns (quasi-species) and the real space patterns (patches) that inhibit the predators from evolving.

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Biological EvolutionModels, BiologicalPhenotypePredatory BehaviorJournal ArticleResearch Support, Non-U.S. Gov't

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N J Savill, P Hogeweg. 1997. Evolutionary stagnation due to pattern-pattern interactions in a coevolutionary predator-prey model.. https://doi.org/10.1162/artl.1997.3.2.81

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