Articles by Author: Philip Ochieng

Search results for Philip Ochieng

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  1. Louisiana crayfish (<em>Procambarus clarkii</em>) (Crustacea: Cambaridae) in Kenyan ponds: non-target effects of a potential biological control agent for schistosomiasis

    Louisiana crayfish (<em>Procambarus clarkii</em>) (Crustacea: Cambaridae) in Kenyan ponds: non-target effects of a potential biological control agent for schistosomiasis

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The Louisiana crayfish (Procambarus clarkii) has been proposed as a biological control agent for the intermediate snail hosts (Bulinus and Biomphalaria spp.) of human schistosomes (Schistosoma haematobium and S. mansoni) in Kenya. Using laboratory and field experiments, we examined the...
  2. Comparing macrophyte herbivory by introduced Louisiana crayfish (<em>Procambarus clarkii</em>) (Crustacea: Cambaridae) and native Dytiscid beetles (<em>Cybister tripunctatus</em>) (Coleoptera: Dytiscidae), in Kenya

    Comparing macrophyte herbivory by introduced Louisiana crayfish (<em>Procambarus clarkii</em>) (Crustacea: Cambaridae) and native Dytiscid beetles (<em>Cybister tripunctatus</em>) (Coleoptera: Dytiscidae), in Kenya

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The omnivorous Louisiana crayfish, Procambarus clarkii, has caused significant changes to macrophyte communities worldwide and may have similar negative effects in Kenya if used as a biological control agent for snails harbouring human schistosomes. Here we examine how herbivory by...
  3. Effect of shallow tillage and straw mulching on soil water conservation and grapevine response

    Effect of shallow tillage and straw mulching on soil water conservation and grapevine response

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Effects of shallow tillage and straw mulch thickness on water conservation and grapevine responses were compared to bare, untilled soil in a Sauvignon blanc/99R vineyard near Stellenbosch from 1995 to 1997. Shallow tillage to a depth of 6 cm did...
  4. REVIEWS

    REVIEWS

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
  5. SHORT NOTES

    SHORT NOTES

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
  6. Factors in Computer Self-Efficacy Among Nigerian College of Education Teachers

    Factors in Computer Self-Efficacy Among Nigerian College of Education Teachers

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    This study investigated factors that are associated with computer self-efficacy among teachers of Southwestern Colleges of Education in Nigeria. Two hundred and eighteen teachers (males =146; females=72; age =52.82, SD=16.38) randomly selected from four Colleges of Education responded to a...
  7. Types of Umbilini (Intuition) in the “<em>ukunyanga</em>” (Xhosa Divination) Tradition

    Types of Umbilini (Intuition) in the “<em>ukunyanga</em>” (Xhosa Divination) Tradition

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    The study sought to characterize types of umbilini, a therapeutic skill in amagqirha divination system. Qualitative data on umbilini experiences were collected from 115 participants with self-reported umbilini experience and supplemented with 25 consultation session observations between amagqirha and their...