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Geomorphology and habitat dynamics

Chapter


Abstract


  • Since the early work of Lugo and Snedaker (1974), geomorphology has been used to organise

    our understanding of the interactions between coastal wetlands and their habitats. Mangroves

    and saltmarshes respond to hydrological and geomorphic conditions in consistent

    ways (Thorn et al. 1967; Woodroffe 1983), such that the relationships between hydrological

    and geomorphic change can be used as a template to predict changing distributions of

    mangrove and saltmarsh.

    With the exception of Tasmania, where mangroves are absent, saltmarshes in Australia are

    restricted to the upper intertidal environment, generally between the elevation of the mean

    high tide, and the mean spring tide. The distribution of these environments within an estuary

    or embayment is controlled by patterns of riverine and marine sedimentation, shaped by the

    major hydrological drivers of river discharge and tidal propagation. The position of intertidal

    flats within an estuary will also exert profound influences on water salinity, and provide a

    major control over the suite of saltmarsh species present.

Authors


Publication Date


  • 2009

Citation


  • Saintilan, N., Rogers, K. & Howe, A. (2009). Geomorphology and habitat dynamics. In N. Saintilan (Eds.), Australian Saltmarsh Ecology (pp. 53-74). Collingwood, Vic: CSIRO Publishing.

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/703

Book Title


  • Australian Saltmarsh Ecology

Start Page


  • 53

End Page


  • 74

Place Of Publication


  • Collingwood, Vic

Abstract


  • Since the early work of Lugo and Snedaker (1974), geomorphology has been used to organise

    our understanding of the interactions between coastal wetlands and their habitats. Mangroves

    and saltmarshes respond to hydrological and geomorphic conditions in consistent

    ways (Thorn et al. 1967; Woodroffe 1983), such that the relationships between hydrological

    and geomorphic change can be used as a template to predict changing distributions of

    mangrove and saltmarsh.

    With the exception of Tasmania, where mangroves are absent, saltmarshes in Australia are

    restricted to the upper intertidal environment, generally between the elevation of the mean

    high tide, and the mean spring tide. The distribution of these environments within an estuary

    or embayment is controlled by patterns of riverine and marine sedimentation, shaped by the

    major hydrological drivers of river discharge and tidal propagation. The position of intertidal

    flats within an estuary will also exert profound influences on water salinity, and provide a

    major control over the suite of saltmarsh species present.

Authors


Publication Date


  • 2009

Citation


  • Saintilan, N., Rogers, K. & Howe, A. (2009). Geomorphology and habitat dynamics. In N. Saintilan (Eds.), Australian Saltmarsh Ecology (pp. 53-74). Collingwood, Vic: CSIRO Publishing.

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/703

Book Title


  • Australian Saltmarsh Ecology

Start Page


  • 53

End Page


  • 74

Place Of Publication


  • Collingwood, Vic