Dynamics and equilibria of ecological predator-prey networks as nature's supply chains

In this paper, we develop a dynamic network model of ecological food webs and prove that the set of stationary points of the projected dynamical system coincides with the set of solutions of a variational inequality governing the equilibrium of predator-prey networks. We also establish the equivalen...

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Bibliographic Details
Published in:Transportation research. Part E, Logistics and transportation review Logistics and transportation review, 2012-01, Vol.48 (1), p.69
Main Authors: Nagurney, Anna, Nagurney, Ladimer S
Format: Article
Language:English
Subjects:
Dynamical systems
Equilibrium
Food chains
Optimization algorithms
Studies
Supply chain management
Supply chains
Online Access:Get full text
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Summary:In this paper, we develop a dynamic network model of ecological food webs and prove that the set of stationary points of the projected dynamical system coincides with the set of solutions of a variational inequality governing the equilibrium of predator-prey networks. We also establish the equivalence between the ecological models and supply chain network equilibrium models and highlight the connections to spatial price equilibrium problems. We propose an algorithmic scheme, provide convergence results, and apply it to a food web drawn from a fisheries application. This paper is a contribution to the interdisciplinary supply chain network literature. [PUBLICATION ABSTRACT]
ISSN:1366-5545
1878-5794