A framework for evaluating food-web responses to hydrological manipulations in riverine systems

Rob ROLLS, Darren S. Baldwin, Nick R. Bond, Rebecca E. Lester, Barbara J. Robson, Daren S. Ryder, Ross M. Thompson, Garth A. Watson

    Research output: Contribution to journalReview article

    3 Citations (Scopus)

    Abstract

    Environmental flows are used to restore elements of the hydrological regime altered by human use of water. One of the primary justifications and purposes for environmental flows is the maintenance of target species populations but, paradoxically, there has been little emphasis on incorporating the food-web and trophic dynamics that determine population-level responses into the monitoring and evaluation of environmental flow programs. We develop a generic framework for incorporating trophic dynamics into monitoring programs to identify the food-web linkages between hydrological regimes and population-level objectives of environmental flows. These linkages form the basis for objective setting, ecological targets and indicator selection that are necessary for planning monitoring programs with a rigorous scientific basis. Because there are multiple facets of trophic dynamics that influence energy production and transfer through food webs, the specific objectives of environmental flows need to be defined during the development of monitoring programs. A multitude of analytical methods exist that each quantify distinct aspects of food webs (e.g. energy production, prey selection, energy assimilation), but no single method can provide a basis for holistic understanding of food webs. Our paper critiques a range of analytical methods for quantifying attributes of food webs to inform the setting, monitoring and evaluation of trophic outcomes of environmental flows and advance the conceptual understanding of trophic dynamics in river-floodplain systems.

    Original languageEnglish
    Pages (from-to)136-150
    Number of pages15
    JournalJournal of Environmental Management
    Volume203
    DOIs
    Publication statusPublished - 1 Dec 2017

    Fingerprint

    Food Chain
    food web
    Monitoring
    monitoring
    hydrological regime
    analytical method
    prey selection
    Program Development
    Environmental Monitoring
    Health Services Needs and Demand
    Energy Transfer
    Population Dynamics
    Rivers
    floodplain
    Maintenance
    Planning
    programme
    Water
    river
    Population

    Cite this

    ROLLS, R., Baldwin, D. S., Bond, N. R., Lester, R. E., Robson, B. J., Ryder, D. S., ... Watson, G. A. (2017). A framework for evaluating food-web responses to hydrological manipulations in riverine systems. Journal of Environmental Management, 203, 136-150. https://doi.org/10.1016/j.jenvman.2017.07.040
    ROLLS, Rob ; Baldwin, Darren S. ; Bond, Nick R. ; Lester, Rebecca E. ; Robson, Barbara J. ; Ryder, Daren S. ; Thompson, Ross M. ; Watson, Garth A. / A framework for evaluating food-web responses to hydrological manipulations in riverine systems. In: Journal of Environmental Management. 2017 ; Vol. 203. pp. 136-150.
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    abstract = "Environmental flows are used to restore elements of the hydrological regime altered by human use of water. One of the primary justifications and purposes for environmental flows is the maintenance of target species populations but, paradoxically, there has been little emphasis on incorporating the food-web and trophic dynamics that determine population-level responses into the monitoring and evaluation of environmental flow programs. We develop a generic framework for incorporating trophic dynamics into monitoring programs to identify the food-web linkages between hydrological regimes and population-level objectives of environmental flows. These linkages form the basis for objective setting, ecological targets and indicator selection that are necessary for planning monitoring programs with a rigorous scientific basis. Because there are multiple facets of trophic dynamics that influence energy production and transfer through food webs, the specific objectives of environmental flows need to be defined during the development of monitoring programs. A multitude of analytical methods exist that each quantify distinct aspects of food webs (e.g. energy production, prey selection, energy assimilation), but no single method can provide a basis for holistic understanding of food webs. Our paper critiques a range of analytical methods for quantifying attributes of food webs to inform the setting, monitoring and evaluation of trophic outcomes of environmental flows and advance the conceptual understanding of trophic dynamics in river-floodplain systems.",
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    A framework for evaluating food-web responses to hydrological manipulations in riverine systems. / ROLLS, Rob; Baldwin, Darren S.; Bond, Nick R.; Lester, Rebecca E.; Robson, Barbara J.; Ryder, Daren S.; Thompson, Ross M.; Watson, Garth A.

    In: Journal of Environmental Management, Vol. 203, 01.12.2017, p. 136-150.

    Research output: Contribution to journalReview article

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    T1 - A framework for evaluating food-web responses to hydrological manipulations in riverine systems

    AU - ROLLS, Rob

    AU - Baldwin, Darren S.

    AU - Bond, Nick R.

    AU - Lester, Rebecca E.

    AU - Robson, Barbara J.

    AU - Ryder, Daren S.

    AU - Thompson, Ross M.

    AU - Watson, Garth A.

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    KW - Environmental flows

    KW - Predator-prey relationships

    KW - Stable isotopes

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    JF - Advances in Environmental Research

    SN - 0301-4797

    ER -