Browsing Research Articles (Zoology and Entomology) by UP Author "Dietemann, Vincent"

Browsing Research Articles (Zoology and Entomology) by UP Author "Dietemann, Vincent"

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  • Atypical viral and parasitic pattern in Algerian honey bee subspecies Apis mellifera intermissa and A. m. sahariensis 
    Adjlane, Noureddine; Dainat, Benjamin; Gauthier, Laurent; Dietemann, Vincent (Springer, 2016-09)
    Unusually high losses of honey bee colonies are reported in many regions of the world, but little data is available concerning the status of honey bee stocks in Africa. However, the situation on this continent, where beekeeping ...
  • Estimating the density of honeybee colonies across their natural range to fill the gap in pollinator decline censuses 
    Jaffe, Rodolfo; Dietemann, Vincent; Allsopp, Mike Herbert; Costa, Cecilia; Crewe, Robin M.; Raffaele, Dall'olio; Pilar, De la Rua; El-Niweiri, Mogbel A. A.; Fries, Ingemar; Kezic, Nikola; Meusel, Michael S.; Paxton, Robert J.; Shaibi, Taher; Stolle, Eckart; Moritz, Robin F.A. (Wiley Blackwell, 2010-04)
    Although pollinator declines are a global biodiversity threat, the demography of the western honeybee (Apis mellifera) has not been considered by conservationists because it is biased by the activity of beekeepers. To ...
  • Go East for better honey bee health : Apis cerana is faster at hygienic behavior than A. mellifera 
    Lin, Zheguang; Page, Paul; Li, Li; Qin, Yao; Zhang, Yingying; Hu, Fuliang; Neumann, Peter; Zheng, Huoqing; Dietemann, Vincent (Public Library of Science, 2016-09-08)
    The poor health status of the Western honey bee, Apis mellifera, compared to its Eastern counterpart, Apis cerana, is remarkable. This has been attributed to lower pathogen prevalence in A. cerana colonies and to their ...
  • The honeybee disease American foulbrood – an African perspective 
    Human, Hannelie; Pirk, Christian Walter Werner; Crewe, Robin M.; Dietemann, Vincent (Entomological Society of Southern Africa, 2011)
    Sustaining apiculture worldwide has been threatened by bee diseases and unexplained colony losses. African honeybee populations seem healthier and no major losses have been reported despite the presence of all the major ...
  • Hygropreference and brood care in the honeybee (Apis mellifera) 
    Ellis, Michael Battiscombe; Nicolson, Sue W.; Crewe, Robin M.; Dietemann, Vincent (Elsevier, 2008-08)
    Terrestrial organisms need to limit evaporation from their bodies in order to maintain a homeostatic water balance. Owing to a large surface to volume ratio, rthropods are particularly susceptible to desiccation and ...
  • Impact of Varroa destructor on honeybee (Apis mellifera scutellata) colony development in South Africa 
    Strauss, Ursula; Pirk, Christian Walter Werner; Crewe, Robin M.; Human, Hannelie; Dietemann, Vincent (Springer, 2015-01)
    The devastating effects of Varroa destructor on European honeybee colonies (Apis mellifera L.) have been well documented. Not only do these mites cause physical damage to parasitised individuals when they feed on them, ...
  • Infestation rates of Varroa destructor and Braula coeca in the savannah honey bee (Apis mellifera scutellata) 
    Strauss, Ursula; Pirk, Christian Walter Werner; Dietemann, Vincent; Crewe, Robin M.; Human, Hannelie (Taylor and Francis, 2014)
    The honey bee (Apis mellifera L.) colony hosts a diversity of pathogens, parasites and pests. The introduced ectoparasite, Varroa destructor Anderson & Trueman (Acari: Varroidae), is regarded as one of the most serious ...
  • Is there a need for conservation of honeybees in Africa? 
    Dietemann, Vincent; Pirk, Christian Walter Werner; Crewe, Robin M. (EDP Sciences, 2009)
    Honeybees are native to Africa and Europe but have been spread worldwide as the basis for an apicultural industry. To date, large and diverse wild populations only remain in Africa. On this continent the beekeeping ...
  • A look into the cell : honey storage in honey bees, Apis mellifera 
    Eyer, Michael; Neumann, Peter; Dietemann, Vincent (Public Library of Science, 2016-08-25)
    Honey bees, Apis species, obtain carbohydrates from nectar and honeydew. These resources are ripened into honey in wax cells that are capped for long-term storage. These stores are used to overcome dearth periods when ...
  • No spatial patterns for early nectar storage in honey bee colonies 
    Eyer, Michael; Greco, Mark K.; Lang, Johann; Neumann, Peter; Dietemann, Vincent (Springer, 2016-02)
    Honey bees, Apis, forage for nectar and pollen, which are subsequently stored in cells of their nests. Despite the importance of honey storage for colony survival, very little is known about decision making by honey bee ...
  • Potential for virus transfer between the honey bees Apis mellifera and A. cerana 
    Yanez, Orlando; Zheng, Huo-Qing; Su, Xiao-Ling; Hu, Fu-Liang; Neumann, Peter; Dietemann, Vincent (Taylor and Francis, 2015)
    Viruses seem to play a key role in European honey bee, Apis mellifera health, and have a much broader host spectrum than previously thought. Few studies have investigated interspecific virus transfer within the genus Apis. ...
  • Resistance rather than tolerance explains survival of savannah honeybees (Apis mellifera scutellata) to infestation by the parasitic mite Varroa destructor 
    Strauss, Ursula; Dietemann, Vincent; Human, Hannelie; Crewe, Robin M.; Pirk, Christian Walter Werner (Cambridge University Press, 2016-03)
    Varroa destructor is considered the most damaging parasite affecting honeybees (Apis mellifera L.). However, some honeybee populations such as the savannah honeybee (Apis mellifera scutellata) can survive mite infestation ...
  • A scientific note on Israeli acute paralysis virus infection of Eastern honeybee Apis cerana and vespine predator Vespa velutina 
    Yanez, Orlando; Zheng, Huo-Qing; Hu, Fu-Liang; Neumann, Peter; Dietemann, Vincent (Springer, 2012-09)
    The Israeli acute paralysis virus (IAPV, Maori et al., 2007; de Miranda et al., 2010) is widespread in Western honey bees (Apis mellifera) for whom it can be a marker of colony losses (Cox-Foster et al., 2007). It has ...
  • A scientific note on the lack of effect of mandible ablation on the synthesis of royal scent by honeybee queens 
    Zheng, Huo-Qing; Dietemann, Vincent; Hu, Fu-Liang; Crewe, Robin M.; Pirk, Christian Walter Werner (Springer, 2012-07)
    Recently, honeybee colonies in which several mated, egg-laying honeybee queens coexist under freely moving conditions were experimentally obtained mainly by ablating a third to a half of both mandibles of queens to avoid ...
  • Seasonal prevalence of pathogens and parasites in the savannah honeybee (Apis mellifera scutellata) 
    Strauss, Ursula; Human, Hannelie; Gauthier, Laurent; Crewe, Robin M.; Dietemann, Vincent; Pirk, Christian Walter Werner (Elsevier, 2013-09)
    The loss of Apis mellifera L. colonies in recent years has, in many regions of the world, been alarmingly high. No single cause has been identified for these losses, but the interactions between several factors (mostly ...
  • Social apoptosis in honey bee superorganisms 
    Page, Paul; Lin, Zheguang; Buawangpong, Ninat; Zheng, Huoqing; Hu, Fuliang; Neumann, Peter; Chantawannakul, Panuwan; Dietemann, Vincent (Nature Publishing Group, 2016-06-06)
    Eusocial insect colonies form superorganisms, in which nestmates cooperate and use social immunity to combat parasites. However, social immunity may fail in case of emerging diseases. This is the case for the ectoparasitic ...
  • Social regulation of ageing by young workers in the honey bee, Apis mellifera 
    Eyer, Michael; Dainat, Benjamin; Neumann, Peter; Dietemann, Vincent (Elsevier, 2017-01)
    Organisms' lifespans are modulated by both genetic and environmental factors. The lifespan of eusocial insects is determined by features of the division of labor,which itself is influenced by social regulatory mechanisms. ...
  • Varroa destructor : research avenues towards sustainable control 
    Dietemann, Vincent; Pflugfelder, Jochen; Anderson, Denis; Charriere, Jean-Daniel; Chejanovsky, Nor; Dainat, Benjamin; De Miranda, Joachim R.; Delaplane, Keith; Dillier, Franz-Xaver; Fuch, Stefan; Gallmann, Peter; Gauthier, Laurent; Imdorf, Anton; Koeniger, Nikolaus; Kralj, Jasna; Meikle, William; Pettis, Jeff; Rosenkranz, Peter; Sammataro, Diana; Smith, Deborah; Yanez, Orlando; Neumann, Peter (International Bee Research Association, 2012)
    Pollination by honey bees plays a key role in the functioning of ecosystems and optimisation of agricultural yields. Severe honey bee colony losses worldwide have raised concerns about the sustainability of these pollination ...