INDUCED OSCILLATIONS GENERATED BY PROTECTIVE THRESHOLD POLICIES IN THE MANAGEMENT OF EXPLOITED POPULATIONS
Management and conservation of exploited populations have been a central issue in theoretical and empirical studies. In this work, it is shown that threshold policies can induce cyclic behavior in an otherwise exploited stable population as a consequence of the combination of harvest pressure and excessively protective threshold densities. Moreover, the dynamical outcomes generated by these extremely protective policies may vary according to the initial densities. These results may be of significant concern in conservation as well as in management of exploited population.
Document Type: Research Article
Affiliations: 1: Laboratório Nacional de Computação Científica, Av. Getúlio Vargas, 333 Petrópolis, RJ 25651-070, Brazil. , Email: [email protected] 2: Setor de Ecologia, Departamento de Biologia, Universidade Federal de Lavras-37.200-000, Lavras-MG, Brazil. , Email: [email protected]
Publication date: 01 May 2011