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Browsing by Author "Siegfried, WR"

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  • Siegfried, WR; Davies, BR (CSIR, 1982-09)
    One of the main challenges facing mankind is to find answers to pressing problems attending the utilization of natural resources, while at the same time taking care not to create even greater problems in the future. In ...
  • Day, J; Siegfried, WR; Louw, GN; Jarman, ML (National Scientific Programmes Unit: CSIR, 1979-12)
    Current knowledge and thinking on the ecology of the Mediterranean type sclerophyll shrublands and heath lands of the southern and south-western Cape is reviewed in 13 concise syntheses. The Fynbos Biome is defined and ...
  • Ryan, PG; Steele, WK; Siegfried, WR; Vogel, JC (Bureau Scientific Publications, 1992-11)
    There are several problems associated with determining radiocarbon dates, particularly for organic material from Antarctica. However, this study attempts to find accurate measure of the length of time these radiocarbon ...
  • 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.