Articles by Keyword: Temperate Mesophotic Ecosystem

Search results for Temperate Mesophotic Ecosystem

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  1. Protected nearshore shallow and deep subtidal rocky reef communities differ in their trophic diversity but not their nutritional condition

    Protected nearshore shallow and deep subtidal rocky reef communities differ in their trophic diversity but not their nutritional condition

    Item type: Journal Article • Journal: African Journal of Marine Science
    Large physical changes that alter reef macrobenthos and fish assemblages occur with increasing depth, so the biological processes that regulate communities at different depths are expected to diverge. We used analyses of stable isotopes (δ13C and δ15N) and fatty acids...
  2. Production and quality norms of certain grass species for fodder flow planning: Pretoria area

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Four subtropical (Cenchrus. Digitaria, Anthephora and Sorghum) and two temperate grass species (Festuca. Agrotricum) were grown in a replicated field experiment at three levels of N application, with adequate P and K. Species were mown at 4‐, 6‐ and 8‐weekly...
  3. Effect of cutting frequency on the yield and quality of legumes and grasses under irrigation

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Four pasture legumes and seven grasses were subjected to a range of cutting frequencies during the 1980/81 season. A wide range of responses emerged, judged by both the dry matter and TDN yield responses of the different species. Whereas two...
  4. Production of pasture species in the winter rainfall region: Simulation of dry matter production

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Production data derived from cutting trials undertaken at a number of sites in the Winter Rainfall Region were used to derive equations for the prediction of the yield of a number of pasture species. Inputs into the models include climatic...
  5. Groei en produksie van ‘n aanal aangeplante weidings onder beweiding

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Die groei en produksie onder beweiding van ‘n aantal aangeplante weidings is met behulp van die verskilmetode bepaal. Uit die data verkry in die proef is dit duidelik dat indien daar besproeiingswater beskikbaar is, groen materiaal dwarsdeur die jaar voorsien...
  6. A comparison of grass and grass/legume pastures under irrigation in the Outeniqua area of the southern Cape

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Two grass and five grass/legume pastures were evaluated over a period of two seasons at two seasonally set grazing pressures and under two grazing management systems, involving five and seven paddocks per flock and a seven‐day period of stay. Grazing...
  7. A RULE-BASED ECOSYSTEM MODEL FOR THE MANAGEMENT OF LAKE ST LUCIA

    A RULE-BASED ECOSYSTEM MODEL FOR THE MANAGEMENT OF LAKE ST LUCIA

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Land transformations in the catchments of Lake St Lucia have altered the hydrology of the system and increased management is now needed to counteract these changes. There are several management options available, but prior to implementing them we must be...
  8. FURTHER COMMENT ON THE RESPONSE OF EASTERN CAPE PROVINCE ESTUARIES TO VARIABLE FRESHWATER INFLOWS

    FURTHER COMMENT ON THE RESPONSE OF EASTERN CAPE PROVINCE ESTUARIES TO VARIABLE FRESHWATER INFLOWS

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    River flow patterns in the Kariega, Great Fish and Keiskamma estuaries, South Africa are examined to assess the impact variation in flow has upon the delivery of inorganic nutrients, total organic carbon, primary productivity and the heterotrophic components, bacteria and...
  9. Production and decomposition of plant litter in an arid rangeland of Kenya

    Production and decomposition of plant litter in an arid rangeland of Kenya

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Data on litter production and decomposition in an arid rangeland in Kenya was collected over a two-year period. Utter sampling was carried out at monthly intervals using a rectangular 0.25m−2 quadrat frame. Utter within the quadrats was handpicked and washed...
  10. Lines around fragments: effects of fencing on large herbivores

    Lines around fragments: effects of fencing on large herbivores

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    People construct fences to delineate land ownership and to control access to land. Fences accomplish several purposes, notable among these are containing livestock or wildlife raised for profit or subsistence, excluding use of vegetation within areas to be conserved and...