A food-web based unified model of "macro"- and "micro-" evolution

Details A food-web based unified model of "macro"- and "micro-" evolution A food-web based unified model of "macro"- and "micro-" evolution

2003-05-14

arxiv.org/abs/cond-mat/0305322v2

Physics

Condensed Matter

Statistical Mechanics

6 pages, 8 embedded EPS figures, REVTEX

Scientific paper

10.1103/PhysRevE.68.041901

We incorporate the generic hierarchical architecture of foodwebs into a "{\it unified}" model that describes both "micro" and "macro" evolutions within a single theoretical framework. This model describes the "micro" -evolution in detail by accounting for the birth, ageing and natural death of individual organisms as well as prey-predator interactions on a hierarchical dynamic food web. It also provides a natural description of random mutations and speciation/orgination of species as well as their extinctions. The distribution of lifetimes of species follows an approximate power law only over a limited regime.

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