Structured population dynamics: continuous size and discontinuous stage structures

被引：37

作者：

Buffoni, Giuseppe ^{[1
]}

Pasquali, Sara ^{[1
]}

机构：

[1] CNR, IMATI, I-20133 Milan, Italy

来源：

JOURNAL OF MATHEMATICAL BIOLOGY | 2007年 / 54卷 / 04期

关键词：

population dynamics; continuous and discontinuous structure; Eulerian models; discrete equations;

D O I：

10.1007/s00285-006-0058-2

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A nonlinear stochastic model for the dynamics of a population with either a continuous size structure or a discontinuous stage structure is formulated in the Eulerian formalism. It takes into account dispersion effects due to stochastic variability of the development process of the individuals. The discrete equations of the numerical approximation are derived, and an analysis of the existence and stability of the equilibrium states is performed. An application to a copepod population is illustrated; numerical results of Eulerian and Lagrangian models are compared.

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页码：555 / 595

页数：41

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