Abstract
The classical holism-reductionism debate, which has been of major importance to the
development of ecological theory and methodology, is an epistemological patchwork. At any
moment, there is a risk of it slipping into an incoherent, chaotic Tower of Babel. Yet
philosophy, like the sciences, requires that words and their correlative concepts be used
rigorously and univocally. The prevalent use of everyday language in the holism-reductionism
issue may give a false impression regarding its underlying clarity and coherence. In reality,
the conceptual categories underlying the debate have yet to be accurately defined and
consistently used. There is a need to map out a clear conceptual, logical and epistemological
framework. To this end, we propose a minimalist epistemological foundation. The issue is
easier to grasp if we keep in mind that holism generally represents the ontological background
of emergentism, but does not necessarily coincide with it. We therefore speak in very loose
terms of the “holism-reductionism” debate, although it would really be better characterised by
the terms emergentism and reductionism. The confrontation between these antagonistic
paradigms unfolds at various semantic and operational levels. In definitional terms, there is
not just emergentism and reductionism, but various kinds of emergentisms and reductionisms.