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Updated: Jul 18, 2026

Culture and Assay of Large-Scale Mixed-Stage Caenorhabditis elegans Populations
Published on: May 5, 2021
Structured population dynamics: continuous size and discontinuous stage structures
Giuseppe Buffoni1, Sara Pasquali
1CNR-IMATI, Via Bassini 15, 20133 Milan, Italy. giuseppe.buffoni@santateresa.enea.it
Abstract:
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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