The Use of Parameter Space in Resource Management or Lets Stop Thinking in Terms of Equilibrium Oriented Methods

Hilborn, R. (1974). The Use of Parameter Space in Resource Management or Lets Stop Thinking in Terms of Equilibrium Oriented Methods. IIASA Working Paper. IIASA, Laxenburg, Austria: WP-74-065

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Abstract

We shall desribe a simple simulation of a predation system; then produce a parameter surface plotting one parameter on one axis and another parameter on the other. On that surface we define several regions that have similar system properties, for example, predator goes extinct, prey goes extinct, stable equilibrium, stable oscillation, etc. We will show how small changes in parameter values can produce major changes in system dynamics and we suggest that environmental managers consider parameter manipulation as a major tool in management. We believe that this approach will suggest new and hopefully very useful ways of designing environmental management policies.

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