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Browsing by Author "Frost, PGH"

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  • Scholes, RJ; Frost, PGH; Tian, Y (Blackwell Publishing Ltd, 2004-03)
    Measurements of tree canopy architecture were made at six savanna sites on deep, sandy soils, along a gradient of increasing aridity. There was substantial variation in the leaf area estimated within each site, using the ...
  • Sankaran, M; Hanan, NP; Scholes, RJ; Ratnam, J; Augustine, DJ; Cade, BS; Gignoux, J; Higgins, SI; Le Roux, X; Ludwig, F; Ardo, J; Banyikwa, F; Bronn, A; Bucini, G; Caylor, KK; Coughenour, MB; Diouf, A; Ekaya, W; Feral, CJ; February, EC; Frost, PGH; Hiernaux, P; Hrabar, H; Metzger, KL; Prins, HHT; Ringrose, S; Sea, W; Tews, J; Worden, J; Zambatis, N (Nature Publishing Group, 2005-12-08)
    Savannas are globally important ecosystems of great significance to human economies. In these biomes, which are characterized by the co-dominance of trees and grasses, woody cover is a chief determinant of ecosystem ...
  • Frost, PGH (National Scientific Programmes Unit: CSIR, 1987)
    This report deals with the South African Savanna Ecosystem Project study site at the Nylsvley Provincial Nature Reserve, northern Transvaal. In particular, a description of the environmental features and ecological processes ...
  • Siegfried, WR; Frost, PGH; Cooper, J; Kemp, AC (National Scientific Programmes Unit: CSIR, 1976-06)
    Data sheets are provided on 101 South African bird species thought to be eligible for conservation attention. A list is also provided of 35 species which might qualify for inclusion in a revised South African Red Data Book.
  • Roy, DP; Frost, PGH; Justice, CO; Landmann, T; Le Roux, JL; Gumbo, K; Makungwa, S; Dunham, K; Du Toit, R; Mhwandagara, K; Zacarias, A; Tacheba, B; Dube, OP; Pereira, JMC; Mushove, P; Morisette, JT; Vannan, SKS; Davies, D (Taylor & Francis Ltd, 2005-10-10)
    The development of appropriate validation techniques is critical to assess uncertainties associated with satellite-data-based products, to identify needed product improvements and to allow products to be used appropriately. ...
  • Scholes, RJ; Dowty, PR; Caylor, K; Parsons, DAB; Frost, PGH; Shugart, HH (Opulus Press Uppsala, 2002-06)
    The Kalahari sand sheet occupies 2.5 million ha in southern Africa. It is an area with relatively similar deep Aeolian soils, and a strong south to north gradient in rainfall, from 200 to 1000 mm mean annual precipitation ...