A model of macroevolution with a natural system size

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dc.creatorHead, D. A.
dc.creatorRodgers, G. J.
dc.date1996-11-06
dc.date1998-07-14
dc.date.accessioned2026-07-07T09:01:40Z
dc.date.available2026-07-07T09:01:40Z
dc.descriptionWe describe a simple model of evolution which incorporates the branching and extinction of species lines, and also includes abiotic influences. A first principles approach is taken in which the probability for speciation and extinction are defined purely in terms of the fitness landscapes of each species. Numerical simulations show that the total diversity fluctuates around a natural system size $N_{\rm nat}$ which only weakly depends upon the number of connections per species. This is in agreement with known data for real multispecies communities. The numerical results are confirmed by approximate mean field analysis.
dc.descriptionComplete rewrite, small mistake in model corrected
dc.identifierhttps://arxiv.org/abs/adap-org/9611003
dc.identifierhttp://arxiv.org/abs/adap-org/9611003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/148361
dc.subjectAdaptation and Self-Organizing Systems
dc.subjectStatistical Mechanics
dc.subjectQuantitative Biology
dc.titleA model of macroevolution with a natural system size
dc.typetext

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