Information theoretical analysis of ecological networks

Abstract
Etiological networks are considered from the viewpoint of information theory. Rutledge et al.'a model for choice within closed systems is extended to apply to open systems; and an unbiased version of Ulanowicz's ascendency, a purported index of the development of ecological communities, is given. This information theoretical analysis is also applicable to flow networks arising as models of biological systems, economic systems, social systems, etc.