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Harvesting induced fluctuations: insights from a threshold management policy. (English) Zbl 1106.92069
Summary: It is shown that in a deterministic context, a threshold policy can induce cyclic behavior in an otherwise exploited stable population. These dynamics ensue as a result of the combination of the degree of harvesting pressure and more protective threshold densities. Virtual equilibrium in variable structure systems plays a determinant role in this dynamical outcome.

92D40 Ecology
91B76 Environmental economics (natural resource models, harvesting, pollution, etc.)
93C95 Application models in control theory
39A11 Stability of difference equations (MSC2000)
Full Text: DOI
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