A model of macroevolution with a natural system size

Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/320

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DC Field	Value	Language
dc.contributor.author	Rodgers, GJ	-
dc.contributor.author	Head, DA	-
dc.coverage.spatial	9	en
dc.date.accessioned	2006-10-30T13:14:30Z	-
dc.date.available	2006-10-30T13:14:30Z	-
dc.date.issued	1998	-
dc.identifier.uri	http://xxx.soton.ac.uk/abs/adap-org/9611003	en
dc.identifier.uri	http://bura.brunel.ac.uk/handle/2438/320	-
dc.description.abstract	We 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	en
dc.format.extent	396732 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	-
dc.subject	Adaptation and self-organizing systems	en
dc.subject	Statistical mechanics	en
dc.title	A model of macroevolution with a natural system size	en
dc.type	Research Paper	en
Appears in Collections:	Mathematical Physics Mechanical and Aerospace Engineering Dept of Mathematics Research Papers Mathematical Sciences

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