Articles by Keyword: Waterbirds

Search results for Waterbirds

We found 13 results for you
  1. Trends in waterbird diversity at Banzi, Shokwe and Nyamithi pans, Ndumo Game Reserve, South Africa

    Trends in waterbird diversity at Banzi, Shokwe and Nyamithi pans, Ndumo Game Reserve, South Africa

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Our understanding of the timeous changes to pan-associated bird diversity is very important for the conservation of these wetlands. At Ndumo Game Reserve, a Ramsar site located in northern KwaZulu-Natal, seasonal (from March 2005 to January 2006 at Nyamithi Pan)...
  2. Distribution, breeding phenology and time budget of Ruddy Shelduck <em>Tadorna ferruginea</em> during the annual cycle in the Hauts Plateaux, north-east Algeria

    Distribution, breeding phenology and time budget of Ruddy Shelduck <em>Tadorna ferruginea</em> during the annual cycle in the Hauts Plateaux, north-east Algeria

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Between September 2003 and July 2006, the reproductive biology and time budget of the Ruddy Shelduck Tadorna ferruginea was studied in the wetland complex of Oum el Bouaghi, north-east Algeria. Our results indicate a marked post-breeding dispersal of the Ruddy...
  3. Status and breeding ecology of the Common <em>Moorhen Gallinula chloropus</em> in Algeria

    Status and breeding ecology of the Common <em>Moorhen Gallinula chloropus</em> in Algeria

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    The status of the Common Moorhen Gallinula chloropus in Algeria and its breeding ecology in North Africa are reported for the first time. Nest site selection and breeding parameters were studied at two contrasting sites in north-east Algeria: Boussedra, an...
  4. Habitat use pattern of three species of egrets in a small coastal lagoon in Ghana

    Habitat use pattern of three species of egrets in a small coastal lagoon in Ghana

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    The foraging and pattern of habitat use of Western Reef Heron Egretta gularis, Little Egret Egretta garzetta and Great Egret Egretta alba were studied in Sakumo II Lagoon in Ghana to determine the extent of utilisation of non-fish resources by...
  5. Human impact on lake ecosystems: the case of Lake Naivasha, Kenya

    Human impact on lake ecosystems: the case of Lake Naivasha, Kenya

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Lake Naivasha is a wetland of national and international importance. However, it is under constant anthropogenic pressures, which include the quest for socioeconomic development within the lake ecosystem itself as well as other activities within the catchment. The lake is...
  6. Fluctuations in bird numbers on sewage treatment ponds in an arid environment, South Africa

    Fluctuations in bird numbers on sewage treatment ponds in an arid environment, South Africa

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Regular twice-monthly counts of birds associated with water at the Prince Albert sewage disposal facility recorded 69 species, of which 16 species (23.5%) were waterbirds (ducks, Red-knobbed Coot Fulica cristata and Little Grebe Tachybaptus ruficollis) and 21 species were shorebirds...
  7. A novel methodology for the rapid assessment of waterbird vulnerability to disturbance

    A novel methodology for the rapid assessment of waterbird vulnerability to disturbance

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    A methodology for rapidly assessing the vulnerability of waterbirds to disturbance was tested at Sabaki estuary, Kenya. Three variables were employed to measure the responses of 15 species: (1) bird density, (2) minimum distance of birds from a stationary disturbance...
  8. Factors affecting nesting success in the Great-crested Grebe <em>Podiceps cristatus</em> at Lake Tonga, north-east Algeria

    Factors affecting nesting success in the Great-crested Grebe <em>Podiceps cristatus</em> at Lake Tonga, north-east Algeria

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    The breeding ecology of the Great-crested Grebe Podiceps cristatus was investigated over four consecutive years (2009-2012) at Lake Tonga, north-east Algeria. In all four years, the egg-laying period was relatively short, spanning two months (end of March to end of...
  9. Assessing the value of wetlands to waterbirds: exploring a population-based index at flyway and regional levels

    Assessing the value of wetlands to waterbirds: exploring a population-based index at flyway and regional levels

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Traditionally, species richness, species diversity, total count, biomass, energy consumption and the Ramsar ‘1% threshold’ have been used to assess the importance of wetlands for waterbirds. Designation of wetlands of international importance (Ramsar sites) based on waterbirds has focused on...
  10. Wintering waterbird assemblages in the central part of the Gulf of Gabès in southern Tunisia

    Wintering waterbird assemblages in the central part of the Gulf of Gabès in southern Tunisia

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Although the Gulf of Gabès is recognised as an Important Bird Area, several aspects of the ecology of waterbirds inhabiting this area still need to be investigated. We observed how waterbird foraging guilds varied among habitats. In total, 49 species...