Seed predation in a tropical mangrove forest

a test of the dominance-predation model in northern Australia

Keith Mcguinness

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    Studies of predation on propagules of the mangroves Avicennia marina, Bruguiera exaristata, Ceriops tagal and Rhizophora stylosa were made in a forest in northern Australia to test the generality of the dominance-predation model. This model states that an inverse relationship exists between the dominance of a species in the canopy of mangrove forests and the rate of predation on the propagules of that species. Significant differences in predation were found among the four species, and among patches of forest dominated by the different species. Predators attacked more than 50% of the propagules of all species except R. stylosa, so are likely to significantly affect forest structure. The intensity of predation did not, however, vary as the dominance-predation model predicted. Instead, predation on the propagules of a species appeared to depend on the availability of propagules of other, more highly preferred, species.
    Original languageEnglish
    Pages (from-to)293-302
    Number of pages10
    JournalJournal of Tropical Ecology
    Volume13
    Issue number2
    DOIs
    Publication statusPublished - Mar 1997

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    seed predation
    mangrove forests
    tropical forests
    mangrove
    predation
    Rhizophora stylosa
    testing
    Ceriops tagal
    Bruguiera
    Avicennia marina
    test
    marina
    canopy
    predator
    predators

    Cite this

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    title = "Seed predation in a tropical mangrove forest: a test of the dominance-predation model in northern Australia",
    abstract = "Studies of predation on propagules of the mangroves Avicennia marina, Bruguiera exaristata, Ceriops tagal and Rhizophora stylosa were made in a forest in northern Australia to test the generality of the dominance-predation model. This model states that an inverse relationship exists between the dominance of a species in the canopy of mangrove forests and the rate of predation on the propagules of that species. Significant differences in predation were found among the four species, and among patches of forest dominated by the different species. Predators attacked more than 50{\%} of the propagules of all species except R. stylosa, so are likely to significantly affect forest structure. The intensity of predation did not, however, vary as the dominance-predation model predicted. Instead, predation on the propagules of a species appeared to depend on the availability of propagules of other, more highly preferred, species.",
    author = "Keith Mcguinness",
    year = "1997",
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    doi = "10.1017/S0266467400010464",
    language = "English",
    volume = "13",
    pages = "293--302",
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    }

    Seed predation in a tropical mangrove forest : a test of the dominance-predation model in northern Australia. / Mcguinness, Keith.

    In: Journal of Tropical Ecology, Vol. 13, No. 2, 03.1997, p. 293-302.

    Research output: Contribution to journalArticleResearchpeer-review

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    AB - Studies of predation on propagules of the mangroves Avicennia marina, Bruguiera exaristata, Ceriops tagal and Rhizophora stylosa were made in a forest in northern Australia to test the generality of the dominance-predation model. This model states that an inverse relationship exists between the dominance of a species in the canopy of mangrove forests and the rate of predation on the propagules of that species. Significant differences in predation were found among the four species, and among patches of forest dominated by the different species. Predators attacked more than 50% of the propagules of all species except R. stylosa, so are likely to significantly affect forest structure. The intensity of predation did not, however, vary as the dominance-predation model predicted. Instead, predation on the propagules of a species appeared to depend on the availability of propagules of other, more highly preferred, species.

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