Articles by Author: N Gr Uuml Ndler

Search results for N Gr Uuml Ndler

We found 198 results for you
  1. Microfossils in surface sediments of brackish waters on the west coast of South Africa and their palaeoecological implications

    Microfossils in surface sediments of brackish waters on the west coast of South Africa and their palaeoecological implications

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    A faunistic survey covering 25 sites in estuaries, coastal lakes and ponds along the west coast of South Africa between the Cape of Good Hope in the south and the Olifants River in the north was carried out in May...
  2. Recovery of <em>Ocotea bullata</em> (Lauraceae) after Fire Damage

    Item type: Journal Article • Journal: South African Forestry Journal
    Fire damage to Ocotea bullata (Lauraceae) may result in crown death but survival and eventual recovery is possible by means of shoot formation. Survival is due to the above-average thickness of the bark of O. bullata and possibly the isolating...
  3. Management of the Coppice Regeneration of <em>Ocotea bullata</em> (Lauraceae)

    Item type: Journal Article • Journal: South African Forestry Journal
    The effects of protecting the coppice shoots of Ocotea bullata (Lauraceae) stumps against bushbuck (Tragelaphus scriptus) browsing were studied. Apart from reducing damage to coppice shoots, protection led to a decrease in the number of shoots per coppice cluster, a...
  4. Decline and Mortality of <em>Ocotea bullata</em> Trees in the Southern Cape Forests

    Item type: Journal Article • Journal: South African Forestry Journal
    Dying trees of Ocotea bullata (Lauraceae) occurred in small groups in certain areas in the medium-moist forests of the southern Cape. Crown health declined significantly (P > 0,01) in the dying groups, but this was not the general trend for...
  5. The Response of <em>Ocotea bullata</em> (Lauraceae) to Flooded Conditions

    Item type: Journal Article • Journal: South African Forestry Journal
    The response of Ocotea bullata (Lauraceae), stinkwood, grown under a range of flooded conditions, was studied. Flooding results in chlorosis and shedding of leaves and may end in death if continued for prolonged periods. Die-back is the result of several...
  6. Rate of <em>Ocotea bullata</em> Decline in Association with <em>Phytophtora cinnamomi</em> at Three Study Sites in the Southern Cape Indigenous Forests

    Item type: Journal Article • Journal: South African Forestry Journal
    Dieback of Ocotea bullata (Lauraceae) associated with the fungal pathogen Phytophtora cinnamoni coincides with waterlogging, fluctuating water availability and drought stress. P. cinnamomi was recovered from areas of obvious dieback as well as from areas of healthy indigenous forest where...
  7. Regeneration Patterns in Planted and Natural Forest Stands Near Knysna, Southern Cape

    Item type: Journal Article • Journal: South African Forestry Journal
    The Diepwalle Arboretum was established in 1926 and consists of a cultivated and uncultivated section. The cultivated section consists of pure stands while the uncultivated section contains both pure and mixed stands. In the cultivated section the understorey vegetation was...
  8. Seasonal variation of grassland basal cover

    Seasonal variation of grassland basal cover

    Preliminary results of a long‐term study of seasonal variation in grassland basal cover are presented. Seasonal stability appears to have been taken for granted but has not yet been shown experimentally. The experimental area is situated in the National Botanic...
  9. The incompatibility of controlled selective grazing systems with farmers’ needs

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Since extension inputs, subsidy schemes and even legislation over several decades were unable to stem the veld deterioration in southern Africa, a renewed attempt was made to identify the causes of the non‐adoption of recommended veld management practices. The hypothesis...
  10. On the satellite-derived wave climate off southern Africa

    On the satellite-derived wave climate off southern Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Significant wave heights obtained from GEOSAT satellite are compared with data from a wave buoy and voluntary observing ships. A versatile and interactive data base of altimeter wave data was created to handle large quantities of satellite information. The data...