کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1706208 1012453 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Long term behaviors of stochastic single-species growth models in a polluted environment
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Long term behaviors of stochastic single-species growth models in a polluted environment
چکیده انگلیسی

Thresholds for extinction and persistence are important for assessing the risk of mortality in systems exposed to toxicant. In this paper, three single-species models with random perturbation in a polluted environment are proposed and investigated. One is the generalized logistic model and the other two are the stochastic resource–consumer models of Leslie and Gallopin. For each model, the survival threshold is obtained in some cases. In general, each threshold is determined by intensity of the random noise, the mean stress measure in organisms, the population intrinsic growth rate and the stress response rate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 35, Issue 2, February 2011, Pages 752–762
نویسندگان
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