Brunel University Research Archive(BURA) preserves and enables easy and open access to all
types of digital content. It showcases Brunel's research outputs.
Research contained within BURA is open access, although some publications may be subject
to publisher imposed embargoes. All awarded PhD theses are also archived on BURA.
Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/320| Title: | A model of macroevolution with a natural system size |
| Authors: | Rodgers, GJ Head, 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/9611003 http://bura.brunel.ac.uk/handle/2438/320 |
| Appears in Collections: | Mathematical Physics Mechanical and Aerospace Engineering Dept of Mathematics Research Papers Mathematical Sciences |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Model Macroevolution.pdf | 387.43 kB | Adobe PDF | View/Open |
Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.