Abstract

A community food web describes the static feeding relationships among the species in a community. There has been considerable progress in the collection and analysis of food web data over the past 20 yr. Excellent reviews are contained in Pimm (1982) and Cohen et al. (1990). One line of research has led to the tentative identification of certain regularities in collections of food webs. Cohen and Newman (1985) proposed a simple phenomenological called the model, that accounts for these apparent regularities. The cascade model is a stochastic model and, therefore, lends itself to statistical inference. The purpose of this paper is to assess the goodness of fit of the cascade model.

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