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Ecological Modelling, 1990
Accepted 15 January 1990. ; Available online 30 June 2003.

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Abstract
A stochastic model for the dynamics of a toxicant in the environment is proposed and analyzed. Then, a three-component model, consisting of a population density of an organism, and the concentrations of the toxicant in the organism and in the environment respectively, is considered. Estimates for the probabilities of persistence and extinction of the population are calculated.
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A stochastic model for the effects of toxicants on populations
Ecological Modelling, Volume 51, Issues 3-4, June 1990, Pages 273-280
Thomas C. Gard

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