Predation, competition, and prey communities: a review of field experiments.

Addresses the controversy of the relative importance of competition and predation in determining the characteristics of organisms, populations and communities. Field experimentation is defined and a scheme of classification is devised; data from a sample of the literature is summarised in table form. Different kinds of analysis are noted. The few experimental field studies involving manipulation of both predators and competitors have mostly been carried out in rocky intertidal habitats; they suggest that both predation and interspecific competition are generally (and about equally) important. -P.J.Jarvis