At a time when ecology and genetics are each racing swiftly towards one new concept after another, yet with little contact of thought between the two subjects, there may be some advantage in surveying, if only synoptically and in preliminary fashion, the largely uncharted territory between them.

In: G.R. de Beer (ed.), Evolution: Essays on Aspects of Evolutionary Biology Presented to - Professor E.S. Goodrich on his Seventieth Birthday - Animal Numbers and Adaptation (p. 127)