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Browsing Research Data (University of Pretoria) by Author "Nicolson, Sue W."
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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 ...
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Kohler, Angela; Nicolson, Sue W.; Pirk, Christian Walter Werner
(Pretoria: University of Pretoria. Faculty of Natural and Agricultural Sciences. Department of Zoology & Entomology, 2012)
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Archer, C. Ruth; Pirk, Christian Walter Werner; Nicolson, Sue W.; Wright, Geraldine A.
(Pretoria: University of Pretoria. Faculty of Natural and Agricultural Sciences. Department of Zoology & Entomology, 2014)
1. Nutrition plays an important role in physiological stress resistance and by adjusting their
intake of key nutrients, such as protein and carbohydrate, many animals can better resist stress.
2. Poor nutrition may ...
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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 ...
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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 ...