Scaling in a Multispecies Network Model Ecosystem
| dc.creator | Sole, Ricard V. | |
| dc.creator | Alonso, David | |
| dc.creator | McKane, Alan | |
| dc.date | 1999-07-23 | |
| dc.date.accessioned | 2026-07-07T01:51:06Z | |
| dc.date.available | 2026-07-07T01:51:06Z | |
| dc.description | A new model ecosystem consisting of many interacting species is introduced. The species are connected through a random matrix with a given connectivity. It is shown that the system is organized close to a boundary of marginal stability in such a way that fluctuations follow power law distributions both in species abundance and their lifetimes for some slow-driving (immigration) regime. The connectivity and the number of species are linked through a scaling relation which is the one observed in real ecosystems. These results suggest that the basic macroscopic features of real, species-rich ecologies might be linked with a critical state. A natural link between lognormal and power law distributions of species abundances is suggested. | |
| dc.description | 10 pages and 3 figures | |
| dc.identifier | https://arxiv.org/abs/adap-org/9907010 | |
| dc.identifier | http://arxiv.org/abs/adap-org/9907010 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207 | |
| dc.subject | Adaptation and Self-Organizing Systems | |
| dc.subject | Quantitative Biology | |
| dc.title | Scaling in a Multispecies Network Model Ecosystem | |
| dc.type | text |