The species-area relationship and evolution |
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Authors: | Lawson Daniel Jensen Henrik Jeldtoft |
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Affiliation: | Department of Mathematics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK. |
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Abstract: | Models relating to the species-area curve usually assume the existence of species, and are concerned mainly with ecological timescales. We examine an individual-based model of co-evolution on a spatial lattice based on the tangled nature model in which species are emergent structures, and show that reproduction, mutation and dispersion by diffusion, with interaction via genotype space, produces power-law species-area relations as observed in ecological measurements at medium scales. We find that long-lasting co-evolutionary habitats form, allowing high diversity levels in a spatially homogenous system. |
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