On the Use of the Logistic Equation in Models of Food Chains

摘要

In food chain models the lowest trophic level is often assumed to grow logistically. Anomalous behaviour of the solution of the logistic equation and problems with The introduction of mortality have recently been reported. As predation on the Lowest trophic level is a kind of mortality, one expects problems with these food Chain models. In this paper we compare two formulations for the lowest trophic Level: the logistic growth formulation and the mass balance formulation with Resources modelled explicitly.