Christian W W Pirk

Summary

Affiliation: University of Pretoria
Country: South Africa

Publications

  1. doi request reprint Economics of comb wax salvage by the red dwarf honeybee, Apis florea
    Christian W W Pirk
    Social Insect Research Group, Department of Zoology and Entomology, University of Pretoria, Pretoria, 0002, South Africa
    J Comp Physiol B 181:353-9. 2011
  2. doi request reprint Simultaneous stressors: interactive effects of an immune challenge and dietary toxin can be detrimental to honeybees
    Angela Kohler
    Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa
    J Insect Physiol 58:918-23. 2012
  3. doi request reprint Honeybees and nectar nicotine: deterrence and reduced survival versus potential health benefits
    Angela Kohler
    Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa
    J Insect Physiol 58:286-92. 2012
  4. doi request reprint Seasonal prevalence of pathogens and parasites in the savannah honeybee (Apis mellifera scutellata)
    Ursula Strauss
    Social Insect Research Group, Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa Electronic address
    J Invertebr Pathol 114:45-52. 2013
  5. pmc Honeybees prefer warmer nectar and less viscous nectar, regardless of sugar concentration
    Susan W Nicolson
    Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa
    Proc Biol Sci 280:20131597. 2013
  6. pmc Self assessment in insects: honeybee queens know their own strength
    Vincent Dietemann
    Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa
    PLoS ONE 3:e1412. 2008
  7. doi request reprint Convergence of carbohydrate-biased intake targets in caged worker honeybees fed different protein sources
    Solomon Z Altaye
    Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa
    J Exp Biol 213:3311-8. 2010

Collaborators

Detail Information

Publications7

  1. doi request reprint Economics of comb wax salvage by the red dwarf honeybee, Apis florea
    Christian W W Pirk
    Social Insect Research Group, Department of Zoology and Entomology, University of Pretoria, Pretoria, 0002, South Africa
    J Comp Physiol B 181:353-9. 2011
    ..florea only salvages wax from the old nest if the new nesting site is less than 100-200 m away-energetically, it pays off to recycle...
  2. doi request reprint Simultaneous stressors: interactive effects of an immune challenge and dietary toxin can be detrimental to honeybees
    Angela Kohler
    Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa
    J Insect Physiol 58:918-23. 2012
    ..coli LPS and nicotine, indicating that interactive effects of simultaneous pathogen exposure and dietary toxin are detrimental to honeybee fitness...
  3. doi request reprint Honeybees and nectar nicotine: deterrence and reduced survival versus potential health benefits
    Angela Kohler
    Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa
    J Insect Physiol 58:286-92. 2012
    ..However, high nicotine concentrations may have a detrimental effect on colony fitness...
  4. doi request reprint Seasonal prevalence of pathogens and parasites in the savannah honeybee (Apis mellifera scutellata)
    Ursula Strauss
    Social Insect Research Group, Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa Electronic address
    J Invertebr Pathol 114:45-52. 2013
    ..All of the honeybee parasites were found in the majority of the apiaries with the most common parasite being the Varroa mite. In spite of hosting few pathogens, yet most parasites, A. m. scutellata colonies appeared to be healthy. ..
  5. pmc Honeybees prefer warmer nectar and less viscous nectar, regardless of sugar concentration
    Susan W Nicolson
    Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa
    Proc Biol Sci 280:20131597. 2013
    ..Bees may benefit from foraging on nectars that are warmer than air temperature for two reasons that are not mutually exclusive: reduced thermoregulatory costs and faster ingestion times due to the lower viscosity. ..
  6. pmc Self assessment in insects: honeybee queens know their own strength
    Vincent Dietemann
    Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa
    PLoS ONE 3:e1412. 2008
    ..Our results further indicate that self-assessment, but not mutual assessment of fighting ability occurs prior to and during the agonistic encounters...
  7. doi request reprint Convergence of carbohydrate-biased intake targets in caged worker honeybees fed different protein sources
    Solomon Z Altaye
    Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa
    J Exp Biol 213:3311-8. 2010
    ..Nutrient intake of broodless workers is directly related to their own physiological requirements, and the strong carbohydrate bias may reflect the high metabolic rate of honeybees even under resting conditions...