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| Reference : Evolution on trees: a brief review about the extinctions of species, and the case of gen... |
| Scientific journals : Article | |||
| Physical, chemical, mathematical & earth Sciences : Physics | |||
| http://hdl.handle.net/2268/18015 | |||
| Evolution on trees: a brief review about the extinctions of species, and the case of genocide in a Darwinistic punctuated equilibrium evolution model | |
| English | |
Ausloos, Marcel  [Université de Liège - ULg > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S. >] | |
| Kramer, M. [> >] | |
| Vandewalle, Nicolas [Université de Liège - ULg > Département de physique > Physique statistique >] | |
| 1-Nov-1999 | |
| Physica A: Statistical Mechanics and its Applications | |
| 273 | |
| 1-2 | |
| 33-45 | |
| Yes (verified by ORBi) | |
| 0378-4371 | |
| [en] Numerical and theoretical investigations of species evolution in presence of extinction rules are recalled in the framework of punctuated equilibrium evolution models. Previous results, on the Bak-Sneppen model are mentioned together with extensions taking into account a variable number of species. Conditions for limited growth due to species interactions, external fields, or intrinsic population density conditions have already been considered. An original genocide model is presented as a step towards describing effects due to the extinction of species. Critical exponents for (i) the avalanche distribution. (ii) the teady-state approach, and (iii) the tree size are given. A mean-field approximation is shown to be quite accurate for describing the critical state. The screening of species from the evolution process is not numerically studied. | |
| Researchers ; Professionals ; Students | |
| http://hdl.handle.net/2268/18015 |
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