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  1. Nitrogen and phosphorus concentration in faeces: an indicator of range quality as a practical adjunct to existing range evaluation methods

    Nitrogen and phosphorus concentration in faeces: an indicator of range quality as a practical adjunct to existing range evaluation methods

    Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: C.C. Grant M.J.S. Peel J.B.J. van Ryssen
    Vegetation monitoring, currently complemented by climatic data in particular rainfall areas, does not always supply sufficient information to provide reliable guidelines for appropriate stocking densities on ranch or reserve scale. This paper considers how the nutrient status of animals may...
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  2. Prediction of primary salinity, sodicity and alkalinity in South African soils

    Prediction of primary salinity, sodicity and alkalinity in South African soils

    Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J Piet Nell --- Agricultural Research Council–Institute for Soil, South Africa Cornelius W van Huyssteen --- Department of Soil, Crop and Climate Science, South Africa
    Several attempts have in the past been made to map the primary salinity, sodicity and alkalinity of South African soils. These have typically been based on personal experience and/or limited data and also failed to quantify the accuracy of prediction...
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  3. Relationships of water temperature and aquatic macroinvertebrate community structure with non-native riparian plant densities in the southern Cape, South Africa

    Relationships of water temperature and aquatic macroinvertebrate community structure with non-native riparian plant densities in the southern Cape, South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NA Rivers-Moore --- Centre for Water Resources Research, South Africa HF Dallas --- Freshwater Research Centre, South Africa, and Nelson Mandela Metropolitan University, South Africa FC de Moor --- Albany Museum and Department of Zoology and Entomology, South Africa J Barendse --- Sustainability Research Unit/South African National Parks, South Africa
    Non-native vegetation in the riparian zone impacts on water temperatures, flow patterns, degree of shading, channel modification, and changes to natural sediment loads. Freshwater ecosystems in the Garden Route Initiative planning domain are of particular conservation value, because of the...
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  4. Sediment dynamics in the Roman Rock area of False Bay, South Africa

    Sediment dynamics in the Roman Rock area of False Bay, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Terhorst --- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia M de Vos --- University of Connecticut, United States C Rautenbach --- Waikato Regional Council, New Zealand
    This study investigated sediment dynamics in the Roman Rock area of False Bay, South Africa, by integrating sediment grain size data with hydrodynamic and wave modelling. We examined two significant events: a long-period southwesterly swell in 2008, and a prolonged...
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