The “Balance of Nature” Metaphor and Equilibrium in Population Ecology

I claim that the “balance of nature” metaphor is shorthand for a paradigmatic view of nature as a beneficent force. I trace the historical origins of this concept and demonstrate that it operates today in the discipline of population ecology. Although it might be suspected that this metaphor is a pre-theoretic description of the more precisely defined notion of equilibrium, I demonstrate that “balance of nature” has constricted the meaning of mathematical equilibrium in population ecology. As well as influencing the meaning of equilibrium, the metaphor has also loaded the mathematical term with values. Environmentalists and critics use this conflation of meaning and value to their advantage. This interplay between the “balance of nature” and equilibrium fits an interactionist interpretation of the role of metaphor in science. However, it seems the interaction is asymmetric, and the “balance of nature” metaphor has had a larger influence on mathematical equilibrium than vice versa. This disproportionate influence suggests that the metaphor was and continues to be a constitutive part of ecological