Release Time:2019-03-22  Hits:

Indexed by: Journal Article

Date of Publication: 2006-04-01

Journal: INTERNATIONAL JOURNAL OF MODERN PHYSICS C

Included Journals: SCIE

Volume: 17

Issue: 4

Page Number: 581-590

ISSN: 0129-1831

Key Words: food webs; trophic level; energy; speciation; self-organization

Abstract: The source-network, the dynamic trophic level and the energy are incorporated into a "unified" model that describes both micro- and macroevolutions within a single theoretical framework. This model describes the microevolution in details by accounting for the birth, ageing, and natural death of individual organisms as prey-predator interactions on a hierarchical dynamic food web. It also provides a natural description of random mutations and speciation of species as well as their extinctions. The distribution of lifetimes of species follows an approximate power law only over a limited regime, and the distribution of trophic level follows an exponential attenuation.