Relative effects of local and landscape factors on wetland algal biomass over a salinity gradient

Belinda Cant, Ralph MAC NALLY, Jim THOMSON, John Beardall

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Wetlands in south-eastern Australia and other arid regions of the world are experiencing increases in salinity due to dryland salinization and climate change. We investigated changes in wetland ecological function, measured as phytoplankton and benthic algal Chl a, over a large salinity gradient (0.047–226 mS cm-1) and in relation to several local water chemistry variables thatmay be important predictors of algal biomass. We investigated the relative importance of landscape variables that may affect input pollution and hydrology of wetlands at four spatial scales (100, 500, 1,000 and 5000 m). We explored the strength and form of the relationships between algal biomass and local and landscape predictors with emphasis on the effects of local and landscape salinity. We found local variables were more important than landscape variables in influencing algal biomass. We also found salinity of wetlands was not a good predictor of phytoplankton biomass but it did predict benthic algal biomass.
    Original languageEnglish
    Pages (from-to)191-202
    Number of pages12
    JournalAquatic Sciences
    Volume72
    DOIs
    Publication statusPublished - 2010

    Fingerprint

    wetlands
    wetland
    salinity
    biomass
    phytoplankton
    ecological function
    salinization
    hydrochemistry
    arid region
    arid lands
    water chemistry
    hydrology
    arid zones
    pollution
    effect
    climate change

    Cite this

    @article{e1b5664de5594f69a4aa1a00c10a2bac,
    title = "Relative effects of local and landscape factors on wetland algal biomass over a salinity gradient",
    abstract = "Wetlands in south-eastern Australia and other arid regions of the world are experiencing increases in salinity due to dryland salinization and climate change. We investigated changes in wetland ecological function, measured as phytoplankton and benthic algal Chl a, over a large salinity gradient (0.047–226 mS cm-1) and in relation to several local water chemistry variables thatmay be important predictors of algal biomass. We investigated the relative importance of landscape variables that may affect input pollution and hydrology of wetlands at four spatial scales (100, 500, 1,000 and 5000 m). We explored the strength and form of the relationships between algal biomass and local and landscape predictors with emphasis on the effects of local and landscape salinity. We found local variables were more important than landscape variables in influencing algal biomass. We also found salinity of wetlands was not a good predictor of phytoplankton biomass but it did predict benthic algal biomass.",
    keywords = "Wetlands, Landscape, Salinity, Algae, Bayesian model selection.",
    author = "Belinda Cant and {MAC NALLY}, Ralph and Jim THOMSON and John Beardall",
    year = "2010",
    doi = "10.1007/s00027-009-0119-x",
    language = "English",
    volume = "72",
    pages = "191--202",
    journal = "Aquatic Sciences",
    issn = "1015-1621",
    publisher = "Birkhauser Verlag Basel",

    }

    Relative effects of local and landscape factors on wetland algal biomass over a salinity gradient. / Cant, Belinda; MAC NALLY, Ralph; THOMSON, Jim; Beardall, John.

    In: Aquatic Sciences, Vol. 72, 2010, p. 191-202.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Relative effects of local and landscape factors on wetland algal biomass over a salinity gradient

    AU - Cant, Belinda

    AU - MAC NALLY, Ralph

    AU - THOMSON, Jim

    AU - Beardall, John

    PY - 2010

    Y1 - 2010

    N2 - Wetlands in south-eastern Australia and other arid regions of the world are experiencing increases in salinity due to dryland salinization and climate change. We investigated changes in wetland ecological function, measured as phytoplankton and benthic algal Chl a, over a large salinity gradient (0.047–226 mS cm-1) and in relation to several local water chemistry variables thatmay be important predictors of algal biomass. We investigated the relative importance of landscape variables that may affect input pollution and hydrology of wetlands at four spatial scales (100, 500, 1,000 and 5000 m). We explored the strength and form of the relationships between algal biomass and local and landscape predictors with emphasis on the effects of local and landscape salinity. We found local variables were more important than landscape variables in influencing algal biomass. We also found salinity of wetlands was not a good predictor of phytoplankton biomass but it did predict benthic algal biomass.

    AB - Wetlands in south-eastern Australia and other arid regions of the world are experiencing increases in salinity due to dryland salinization and climate change. We investigated changes in wetland ecological function, measured as phytoplankton and benthic algal Chl a, over a large salinity gradient (0.047–226 mS cm-1) and in relation to several local water chemistry variables thatmay be important predictors of algal biomass. We investigated the relative importance of landscape variables that may affect input pollution and hydrology of wetlands at four spatial scales (100, 500, 1,000 and 5000 m). We explored the strength and form of the relationships between algal biomass and local and landscape predictors with emphasis on the effects of local and landscape salinity. We found local variables were more important than landscape variables in influencing algal biomass. We also found salinity of wetlands was not a good predictor of phytoplankton biomass but it did predict benthic algal biomass.

    KW - Wetlands

    KW - Landscape

    KW - Salinity

    KW - Algae

    KW - Bayesian model selection.

    U2 - 10.1007/s00027-009-0119-x

    DO - 10.1007/s00027-009-0119-x

    M3 - Article

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    SP - 191

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    JO - Aquatic Sciences

    JF - Aquatic Sciences

    SN - 1015-1621

    ER -