A physiologically driven mathematical simulation model as a tool for extension of results from laboratory tests to ecosystem effects

Abstract

A model simulating the predator-prey interaction between Hypoaspis aculeifer (mite) and Folsomia fimetaria (Collembola) in a laboratory microcosm at constant temperature is described. Results demonstrate the ability to simulate the indirect effect of dimethoate (insecticide) on H. aculeifer at sublethal doses through a lethal effect on F. fimetaria. The model uses a physiological time-scale (degree-days) and temperature measurements as input.