Work

Individual-based predator-prey model for biological coevolution: Fluctuations, stability, and community structure

Year: 2007

Type: article

Abstract: We study an individual-based predator-prey model of biological coevolution, using linear stability analysis and large-scale kinetic Monte Carlo simulations. The model exhibits approximate 1/f noise in diversity and population-size fluctuations, and it generates a sequence of quasisteady communities in the form of simple food webs. These communities are quite resilient toward the loss of one or a few species, which is reflected in different power-law exponents for the durations of communities and the lifetimes of species. The exponent for the former is near -1 , while the latter is close to -2 . Statistical characteristics of the evolving communities, including degree (predator and prey) distributions and proportions of basal, intermediate, and top species, compare reasonably with data for real food webs.

Source: Physical Review E

DOI: 10.1103/physreve.75.051920

Authors: Per Arne Rikvold, Volkan Sevim

Institutions: Florida State University, National High Magnetic Field Laboratory

Language: English

Topic: Mathematical and Theoretical Epidemiology and Ecology Models

Subfield: Public Health, Environmental and Occupational Health

Field: Medicine

Domain: Health Sciences

Open Access status: green

Funder: Florida State University

OpenAlex ID: W2011959067

FWCI: 5.115

Cites: 82

Cited by: 22

Related to: 10