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Widespread dispersal of the microsporidian Nosema ceranae, an emergent pathogen of the western honey bee, Apis mellifera.
Nosema ceranae has infected Apis mellifera in Europe since at least 1998 and may be more virulent than Nosema apis
It is found that N. ceranae has been present in Europe since at least 1998 and that it has increased in frequency across this time period relative to Nosema apis, possibly leading to higher mean spore loads per bee and that both parasites build up to equal numbers per bee by day 14 post infection.
Symbionts as Major Modulators of Insect Health: Lactic Acid Bacteria and Honeybees
Honeybees possess an abundant, diverse and ancient LAB microbiota in their honey crop with beneficial effects for bee health, defending them against microbial threats, and this microbiota will become central to studies on honeybee health, including colony collapse disorder, and act as an exemplar case of insect-microbe symbiosis.
Mating behavior and chemical communication in the order Hymenoptera.
It is shown that some orchids use hymenopteran sex pheromones to dupe males into performing pseudocopulation, with extreme species specificity, and many species appear to discriminate among mates at the level of individual or kin/colony, and they use antiaphrodisiacs.
Disease associations between honeybees and bumblebees as a threat to wild pollinators
- M. Fürst, D. McMahon, J. Osborne, R. Paxton, M.J.F. Brown
- Environmental ScienceNature
- 20 February 2014
Emerging infectious diseases (EIDs) pose a risk to human welfare, both directly and indirectly, by affecting managed livestock and wildlife that provide valuable resources and ecosystem services,…
Standard methods for Nosema research
Methods for working with Nosema apis and Nosema ceranae in the field and in the laboratory are described, including different means for determining colony level and individual bee infection levels and methods for species determination.
Cryptic species diversity in a widespread bumble bee complex revealed using mitochondrial DNA RFLPs
- T. Murray, Ú. Fitzpatrick, Mark J. F. Brown, R. Paxton
- Environmental ScienceConservation Genetics
- 1 June 2008
The RFLP approach to identify native fauna can underpin ecological studies of these important cryptic species as well as the impact of commercial bumble bees on them.
Male mating behaviour and mating systems of bees: an overview
- R. Paxton
- 1 April 2005
Les Apoides se caracterisent par une diversite interspecifique enorme concernant aussi bien les lieux d'accouplement, ou les mâles recherchent les femelles, que les strategies utilisees par les mÃ©les pour s'assurer des accouplements efficaces, en particulier chez les abeilles nidifiant dans le sol.
Queen-worker conflict over male production and the sex ratio in a facultatively polyandrous bumblebee, Bombus hypnorum: the consequences of nest usurpation.
Microsatellite analysis of nestmates of one social hymenopteran, the primitively eusocial and monogynous bumblebee Bombus hypnorum, finds that male parentage was independent of the sociogenetic organization of the colony, suggesting that the queen was in control of the laying of male-destined eggs.
Estimating the Density of Honeybee Colonies across Their Natural Range to Fill the Gap in Pollinator Decline Censuses
- R. Jaffé, V. Dietemann, R. Moritz
- Environmental ScienceConservation biology : the journal of the Society…
- 1 April 2010
Current densities of European honeybee populations are in the same range as those found in the adverse climatic conditions of the Kalahari and Saharan deserts, which suggests that beekeeping activities do not compensate for the loss of wild colonies.