Browsing Research Data (University of Pretoria) by Subject "Apis mellifera scutellata"

Browsing Research Data (University of Pretoria) by Subject "Apis mellifera scutellata"

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  • Antioxidant supplementation can reduce the survival costs of amino acid intake in honeybees 
    Archer, C. Ruth; Kohler, Angela; Pirk, Christian Walter Werner; Oosthuizen, Vinette; Apostolides, Zeno; Nicolson, Sue W. (University of Pretoria, 2014)
    Over-consuming amino acids is associated with reduced survival in many species, including honeybees. The mechanisms responsible for this are unclear but one possibility is that excessive intake of amino acids increases ...
  • A new design for honeybee hoarding cages for laboratory experiments 
    Kohler, Angela; Nicolson, Sue W.; Pirk, Christian Walter Werner (Pretoria: University of Pretoria. Faculty of Natural and Agricultural Sciences. Department of Zoology & Entomology, 2012)
  • Resistance of developing honeybee larvae during chronic exposure to dietary nicotine 
    Human, Hannelie; Archer, C. Ruth; Du Rand, Esther Elizabeth; Pirk, Christian Walter Werner; Nicolson, Sue W. (Pretoria : University of Pretoria. Faculty of Natural and Agricultural Sciences. Department of Zoology & Entomology, 2014)
    The effects of pesticides on honeybee larvae are less understood than for adult bees, even though larvae are chronically exposed to pesticide residues that accumulate in comb and food stores in the hive. We investigated ...
  • Simultaneous stressors : interactive effects of an immune challenge and dietary toxin can be detrimental to honeybees 
    Kohler, Angela; Pirk, Christian Walter Werner; Nicolson, Sue W. (Pretoria: University of Pretoria. Faculty of Natural and Agricultural Sciences. Department of Zoology & Entomology, 2012)
    Recent large-scale mortality of honeybee colonies is believed to be caused by multiple interactions between diseases, parasites, pesticide exposure, and other stress factors. To test whether a dual challenge has an additive ...