Prioritising weed species based on their ability to impact on biodiversity: a case study from New South Wales

Paul Downey, Tim Scanlon, John Hosking

    Research output: Contribution to journalArticle

    Abstract

    Weeds pose a significant threat to biodiversity, but information on which species pose the greatest threat and the level of their impact is missing (i.e. only available for a few of the 3100+ naturalized plant species in Australia). Here we assessed the 1665 naturalized plant species in NSW to ascertain their level of threat as well as their ability to impact on native species. First we excluded those species which were (i) not known to be invasive, (ii) known from only a few locations, or (iii) not environmental weeds. The remaining 340 species were then modelled to establish a prioritized list. While we did not assess the actual impacts, the five attributes used in the model (i.e. spatial threat, species impact, invasive ability, number of species at risk and habitat type), when combined, provide a reasonable assessment given the lack of robust data available on impacts. The modelling process identified three extreme and 19 very high priority species with respect to their ability to have negative impacts on biodiversity. Of these many have been identified in other weed lists (e.g. the three extreme species, Anredera cordifolia (Madeira vine), Lantana camara (lantana) and Chrysanthemoides monilifera subsp. rotundata (bitou bush) were ranked as forty-first, fourth, and sixth, respectively, in the determination of the Weeds of National Significance). Our prioritized list of weed species based on their ability to impact on biodiversity will help to aid management decisions, especially for those weed species posing a landscape scale impact, in the absence of impact data.
    Original languageEnglish
    Pages (from-to)111-126
    Number of pages16
    JournalPlant Protection Quarterly
    Volume25
    Issue number3
    Publication statusPublished - 2010

    Fingerprint

    New South Wales
    weed
    weeds
    biodiversity
    case studies
    Anredera
    Chrysanthemoides monilifera
    Lantana
    Lantana camara
    vines
    indigenous species
    vine
    habitat type
    native species
    habitats
    modeling

    Cite this

    Downey, Paul ; Scanlon, Tim ; Hosking, John. / Prioritising weed species based on their ability to impact on biodiversity: a case study from New South Wales. In: Plant Protection Quarterly. 2010 ; Vol. 25, No. 3. pp. 111-126.
    @article{f7c4e4bc41124e8bbc10ed357be7498b,
    title = "Prioritising weed species based on their ability to impact on biodiversity: a case study from New South Wales",
    abstract = "Weeds pose a significant threat to biodiversity, but information on which species pose the greatest threat and the level of their impact is missing (i.e. only available for a few of the 3100+ naturalized plant species in Australia). Here we assessed the 1665 naturalized plant species in NSW to ascertain their level of threat as well as their ability to impact on native species. First we excluded those species which were (i) not known to be invasive, (ii) known from only a few locations, or (iii) not environmental weeds. The remaining 340 species were then modelled to establish a prioritized list. While we did not assess the actual impacts, the five attributes used in the model (i.e. spatial threat, species impact, invasive ability, number of species at risk and habitat type), when combined, provide a reasonable assessment given the lack of robust data available on impacts. The modelling process identified three extreme and 19 very high priority species with respect to their ability to have negative impacts on biodiversity. Of these many have been identified in other weed lists (e.g. the three extreme species, Anredera cordifolia (Madeira vine), Lantana camara (lantana) and Chrysanthemoides monilifera subsp. rotundata (bitou bush) were ranked as forty-first, fourth, and sixth, respectively, in the determination of the Weeds of National Significance). Our prioritized list of weed species based on their ability to impact on biodiversity will help to aid management decisions, especially for those weed species posing a landscape scale impact, in the absence of impact data.",
    author = "Paul Downey and Tim Scanlon and John Hosking",
    year = "2010",
    language = "English",
    volume = "25",
    pages = "111--126",
    journal = "Plant Protection Quarterly",
    issn = "0815-2195",
    publisher = "Plant Protection Quarterly",
    number = "3",

    }

    Prioritising weed species based on their ability to impact on biodiversity: a case study from New South Wales. / Downey, Paul; Scanlon, Tim; Hosking, John.

    In: Plant Protection Quarterly, Vol. 25, No. 3, 2010, p. 111-126.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Prioritising weed species based on their ability to impact on biodiversity: a case study from New South Wales

    AU - Downey, Paul

    AU - Scanlon, Tim

    AU - Hosking, John

    PY - 2010

    Y1 - 2010

    N2 - Weeds pose a significant threat to biodiversity, but information on which species pose the greatest threat and the level of their impact is missing (i.e. only available for a few of the 3100+ naturalized plant species in Australia). Here we assessed the 1665 naturalized plant species in NSW to ascertain their level of threat as well as their ability to impact on native species. First we excluded those species which were (i) not known to be invasive, (ii) known from only a few locations, or (iii) not environmental weeds. The remaining 340 species were then modelled to establish a prioritized list. While we did not assess the actual impacts, the five attributes used in the model (i.e. spatial threat, species impact, invasive ability, number of species at risk and habitat type), when combined, provide a reasonable assessment given the lack of robust data available on impacts. The modelling process identified three extreme and 19 very high priority species with respect to their ability to have negative impacts on biodiversity. Of these many have been identified in other weed lists (e.g. the three extreme species, Anredera cordifolia (Madeira vine), Lantana camara (lantana) and Chrysanthemoides monilifera subsp. rotundata (bitou bush) were ranked as forty-first, fourth, and sixth, respectively, in the determination of the Weeds of National Significance). Our prioritized list of weed species based on their ability to impact on biodiversity will help to aid management decisions, especially for those weed species posing a landscape scale impact, in the absence of impact data.

    AB - Weeds pose a significant threat to biodiversity, but information on which species pose the greatest threat and the level of their impact is missing (i.e. only available for a few of the 3100+ naturalized plant species in Australia). Here we assessed the 1665 naturalized plant species in NSW to ascertain their level of threat as well as their ability to impact on native species. First we excluded those species which were (i) not known to be invasive, (ii) known from only a few locations, or (iii) not environmental weeds. The remaining 340 species were then modelled to establish a prioritized list. While we did not assess the actual impacts, the five attributes used in the model (i.e. spatial threat, species impact, invasive ability, number of species at risk and habitat type), when combined, provide a reasonable assessment given the lack of robust data available on impacts. The modelling process identified three extreme and 19 very high priority species with respect to their ability to have negative impacts on biodiversity. Of these many have been identified in other weed lists (e.g. the three extreme species, Anredera cordifolia (Madeira vine), Lantana camara (lantana) and Chrysanthemoides monilifera subsp. rotundata (bitou bush) were ranked as forty-first, fourth, and sixth, respectively, in the determination of the Weeds of National Significance). Our prioritized list of weed species based on their ability to impact on biodiversity will help to aid management decisions, especially for those weed species posing a landscape scale impact, in the absence of impact data.

    M3 - Article

    VL - 25

    SP - 111

    EP - 126

    JO - Plant Protection Quarterly

    JF - Plant Protection Quarterly

    SN - 0815-2195

    IS - 3

    ER -