Variability in riverine ecosystems

Martin Thoms

    Research output: Contribution to journalArticle

    36 Citations (Scopus)

    Abstract

    Riverine ecosystems are complex features of the landscape displaying structures and processes that reflect the influence of many variables at a range of scales. Thus, the physical, chemical and ecological character of riverine ecosystems differs between them and may change over time, often at different rates and in different ways. In addition, the structure and function of riverine ecosystems also varies downstream. Rivers are process-response systems whereby changes to discharge and sediment load induce a range of ecosystem responses. Those river systems subject to highly variable process regimes may be expected to exhibit enhanced levels of complexity and display processform relationships commensurate of this variability, where both equilibrium and non-equilibrium conditions can exist. The process-form relationships and interactions between the physical, chemical and ecological templates of highly variable riverine ecosystems challenge some of the accepted wisdoms of river system functioning. This paper introduces some of these challenges and the general theme of the ten papers of this special issue of River Research and Applications. As a collective they apply an interdisciplinary approach to the study and management of variability in riverine ecosystems and in doing so advance our knowledge of these systems
    Original languageEnglish
    Pages (from-to)115-121
    Number of pages7
    JournalRiver Research and Applications: an international journal devoted to river research and management
    Volume22
    Issue number2
    DOIs
    Publication statusPublished - 2006

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    Ecosystems
    ecosystem
    Rivers
    river system
    interdisciplinary approach
    ecosystem response
    landscape structure
    river
    Discharge (fluid mechanics)
    Sediments
    Display devices
    sediment
    chemical

    Cite this

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    abstract = "Riverine ecosystems are complex features of the landscape displaying structures and processes that reflect the influence of many variables at a range of scales. Thus, the physical, chemical and ecological character of riverine ecosystems differs between them and may change over time, often at different rates and in different ways. In addition, the structure and function of riverine ecosystems also varies downstream. Rivers are process-response systems whereby changes to discharge and sediment load induce a range of ecosystem responses. Those river systems subject to highly variable process regimes may be expected to exhibit enhanced levels of complexity and display processform relationships commensurate of this variability, where both equilibrium and non-equilibrium conditions can exist. The process-form relationships and interactions between the physical, chemical and ecological templates of highly variable riverine ecosystems challenge some of the accepted wisdoms of river system functioning. This paper introduces some of these challenges and the general theme of the ten papers of this special issue of River Research and Applications. As a collective they apply an interdisciplinary approach to the study and management of variability in riverine ecosystems and in doing so advance our knowledge of these systems",
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    Variability in riverine ecosystems. / Thoms, Martin.

    In: River Research and Applications: an international journal devoted to river research and management, Vol. 22, No. 2, 2006, p. 115-121.

    Research output: Contribution to journalArticle

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    T1 - Variability in riverine ecosystems

    AU - Thoms, Martin

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    AB - Riverine ecosystems are complex features of the landscape displaying structures and processes that reflect the influence of many variables at a range of scales. Thus, the physical, chemical and ecological character of riverine ecosystems differs between them and may change over time, often at different rates and in different ways. In addition, the structure and function of riverine ecosystems also varies downstream. Rivers are process-response systems whereby changes to discharge and sediment load induce a range of ecosystem responses. Those river systems subject to highly variable process regimes may be expected to exhibit enhanced levels of complexity and display processform relationships commensurate of this variability, where both equilibrium and non-equilibrium conditions can exist. The process-form relationships and interactions between the physical, chemical and ecological templates of highly variable riverine ecosystems challenge some of the accepted wisdoms of river system functioning. This paper introduces some of these challenges and the general theme of the ten papers of this special issue of River Research and Applications. As a collective they apply an interdisciplinary approach to the study and management of variability in riverine ecosystems and in doing so advance our knowledge of these systems

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