Articles by Author: R J Dean

Search results for R J Dean

We found 128 results for you
  1. Grassland research and extension: Present and future

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    It is indeed a great honour to be invited to give the opening address at this Twenty‐third Congress of the Grassland Society. It seems pertinent to review briefly grassland research, its impact on the farmer, and consider where we should...
  2. Preferential utilization of pans by springbok <em>(Antidorcas marsupialis)</em>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Forage utilization by springbok in pans and surrounding habitats was compared at one karroid shrubland site and two desert grassland sites and was found to be greater in pans than on adjacent plains and dunes. Springbok used pan areas for...
  3. Effects of animal activity on the absorption rate of soils in the southern Karoo, South Africa

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The rates of absorption into various microsites in Karoo soils were compared. The absorption of water by hard, bare intershrub soils was significantly increased by the presence of emergence holes of adult cicadas (Homoptera: Cicadidae) and near nest‐mounds of the...
  4. MOULT SEASONS OF SOME ANATIDAE IN THE WESTERN TRANSVAAL

    MOULT SEASONS OF SOME ANATIDAE IN THE WESTERN TRANSVAAL

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Dean, W. R. J. 1978. Moult seasons of some Anatidae in the western Transvaal. Ostrich 49:76-84.
  5. REVIEWS

    REVIEWS

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
  6. APPARENT AVIAN EXTINCTIONS FROM ISLANDS IN A MAN-MADE LAKE, SOUTH AFRICA

    APPARENT AVIAN EXTINCTIONS FROM ISLANDS IN A MAN-MADE LAKE, SOUTH AFRICA

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Dean, W.R.J. & Bond, W.J. 1994. Apparent avian extinctions from islands in a man-made lake, South Africa. Ostrich 65:7-13.
  7. BIOLOGY OF THE TRISTAN THRUSH <em>NESOCICHLA EREMITA</em>

    BIOLOGY OF THE TRISTAN THRUSH <em>NESOCICHLA EREMITA</em>

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    M.W. Fraser, P.G. Ryan, W.R.J. Dean, D.J. Briggs, & C.L. Moloney 1994. The biology of the Tristan Thrush Nesocichla eremita. Ostrich 65:14-25.
  8. Short Notes

    Short Notes

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology