On assessing the significance of interspecific competition to guild structure.

Ralph MAC NALLY

    Research output: Contribution to journalArticle

    80 Citations (Scopus)

    Abstract

    A three-phase procedure that can be used to specify the influence of interspecific competition on guild structure is presented. These phases are: 1) measurement of overlap of resource usage (approx= descriptive data); 2) establishment of interaction, which entails the experimental demonstration that the presence of other species leads to altered patterns of resource usage; and 3) demonstration of depressive competition, in which the interaction is shown to be responsible for altered characteristics of populations (eg. population density, age-structure, etc.) or individuals within the populations (eg. fecundity, mortality, relative fitness).
    Original languageEnglish
    Pages (from-to)1646-1652
    Number of pages7
    JournalEcology
    Volume64
    Issue number6
    Publication statusPublished - 1983

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