ON THE APPLICATION OF STABILITY CONCEPTS IN ECOLOGY

Using the example of stability properties, this paper demonstrates the problem of defining and characterizing 'emergent properties' in ecology. The debate about stability in ecological theory is marked by a frightful confusion of terms and concepts. Judgements about stability properties are often far too general. In fact, stability concepts can only be applied in clearly defined ecological situations. The features of an ecological situation determine the domain of validity of statements about stability. We have compiled these features into an "ecological checklist" aimed at making statements on stability complete and more useful as a result. The checklist is also a tool for identifying gaps in previous ecological research on stability. A model is provided to demonstrate that approaches other than local stability analysis (here the "Linear Response Theory") can help close these gaps.