Browsing by Author "Schael, Denise Marie"

Now showing 1 - 1 of 1
  • Thumbnail Image
    Item
    Open Access
    Distributions of physical habitats and benthic macroinvertebrates in Western Cape headwater streams at multiple spatial and temporal scales
    (2005) Schael, Denise Marie; King, Jackie; Day, Jenny; Field, John G
    The research in this thesis examines the links between benthic macroinverebrate (invertebrate) distributions and aspects of the physical habitat at different spatial and temporal scales in mountain and foothill zones of rivers in the Western Cape, South Africa. A geomorphological hierarchy was used as the spatial template for studying invertebrate distributions. The different levels of the hierarchy are: catchment, segment, zone, reach, morphological unit and hydraulic biotype. Hydraulic biotypes are visually defined flow and substratum combinations. The hierarchical levels studied in this thesis were catchment, zone, reach and hydraulic biotype.