Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/320
 Title: A model of macroevolution with a natural system size Authors: Rodgers, GJHead, DA Keywords: Adaptation and self-organizing systems;Statistical mechanics Issue Date: 1998 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 URI: http://xxx.soton.ac.uk/abs/adap-org/9611003http://bura.brunel.ac.uk/handle/2438/320 Appears in Collections: Mathematical PhysicsMechanical and Aerospace EngineeringDept of Mathematics Research PapersMathematical Sciences

Files in This Item:
File Description SizeFormat