Shipley1993

Référence

Shipley, B. (1993) A null model for competitive hierarchies in competition matrices. Ecology, 74(6):1693-1699.

Résumé

To evaluate the tendency of plant species to be arranged in hierarchies of competitive ability, Keddy and Shipley (1989) introduced a definition of competitive transitivity in multispecies competition matrices and developed an inferential statistic to test for such a pattern. The author introduces a more demanding definition of competitive transitivity ("complete transitivity') that defines a strict hierarchy of competitive relationships and that has more desirable properties for inferring competitive exclusion. A null model, and its accompanying Monte Carlo test, is developed that can be used in analyzing empirical competition matrices. Ten published competition matrices are analyzed; nine show clear evidence of complete transitivity. -from Author

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@ARTICLE { Shipley1993,
    AUTHOR = { Shipley, B. },
    TITLE = { A null model for competitive hierarchies in competition matrices },
    JOURNAL = { Ecology },
    YEAR = { 1993 },
    VOLUME = { 74 },
    PAGES = { 1693-1699 },
    NUMBER = { 6 },
    NOTE = { 00129658 (ISSN) Cited By (since 1996): 23 Export Date: 26 April 2007 Source: Scopus Language of Original Document: English },
    ABSTRACT = { To evaluate the tendency of plant species to be arranged in hierarchies of competitive ability, Keddy and Shipley (1989) introduced a definition of competitive transitivity in multispecies competition matrices and developed an inferential statistic to test for such a pattern. The author introduces a more demanding definition of competitive transitivity ("complete transitivity') that defines a strict hierarchy of competitive relationships and that has more desirable properties for inferring competitive exclusion. A null model, and its accompanying Monte Carlo test, is developed that can be used in analyzing empirical competition matrices. Ten published competition matrices are analyzed; nine show clear evidence of complete transitivity. -from Author },
    KEYWORDS = { competition matrix transitivity },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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