Apidologie
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Egg laying and oophagy by reproductive workers in the polygynous stingless bee Melipona bicolor (Hymenoptera, Meliponini)
Apidologie - Tập 38 - Trang 55-66 - 2007
We studied queen-worker conflict over male production in a Melipona bicolor colony, having three physogastric queens and individually marked workers, by means of observations of the processes of cell oviposition. The gender that developed from these cells showed that queens produced mainly female offspring. The overall percentage of the males that were workers’ sons was estimated between 27 and 82......
Properties of honey from Tetragonisca angustula fiebrigi and Plebeia wittmanni of Argentina
Apidologie - Tập 41 - Trang 667-675 - 2010
The composition of honey samples of Plebeia wittmanni (n = 10) and Tetragonisca angustula fiebrigi (n = 12) was analysed. The colours of all collected honeys were amber to dark amber and the pH varied. Moisture was lower than reported for other stingless bee honeys. Conductivity and ash content of P. wittmanni honey were higher than for T. angustula fiebrigi. Acidity of P. wittmanni honey was the ......
A survivor population of wild colonies of European honeybees in the northeastern United States: investigating its genetic structure
Apidologie - Tập 46 - Trang 654-666 - 2015
There is a widespread belief that wild colonies of European honeybees have been eradicated in Europe and North America, killed by viruses spread by the introduced ectoparasitic mite, Varroa destructor. In reality, however, several populations of wild colonies of honeybees in Europe and North America are persisting despite exposure to Varroa. To help understand how this is happening, we tested whet......
The reliability of honey bee density estimates from trapped drones
Apidologie - Tập 53 - Trang 1-12 - 2022
Australia has an abundance of feral honey bee colonies. Understanding their densities is important to assess their current economic and ecological impact and the need for mitigation should the mite Varroa destructor become established. Inferring colony density based on the genotypes of honey bee drones (males) caught in a Williams trap has been identified as a promising approach. This method assum......
Abiotic correlates of bee diversity and composition along eastern Neotropics
Apidologie - Tập 44 - Trang 547-562 - 2013
Native bee diversity is poorly documented for many regions of the globe, particularly in the Neotropics. The available structured inventories in this biogeographical region provide reliable data, but they lack a comprehensive interpretation due to the absence of an effort to relate diversity and composition data with environmental variables. We aimed to answer the following questions: (1) Do abiot......
Effects of field characteristics on abundance of bumblebees (Bombus spp.) and seed yield in red clover fields
Apidologie - Tập 41 - Trang 657-666 - 2010
Red clover is a key floral ressource for bumblebees (Bombus spp.). We here investigate variation within and among red clover fields in species richness and abundance of Bombus spp. in addition to Apis mellifera. Bumblebee individuals were grouped into the following functional groups, based on castes and tongue length: (1) all queens, (2) all workers, (3) short-tongued workers and (4) long-tongued ......
Comparative transcriptome analysis reveals regulatory genes involved in cold tolerance and hypoxic adaptation of high-altitude Tibetan bumblebees
Apidologie - Tập 51 - Trang 1166-1181 - 2020
China has many habitats supporting a wide diversity of bumblebees, some species of which are limited in distribution to the Tibet Plateau. The high-altitude Tibet Plateau, which has low air density as well as extremely low temperatures, strains the energy requirements for flight in most insects. However, high-altitude bumblebees have adapted to the harsh conditions of this type of habitat. Bumbleb......
Bioactivity of gallic acid–conjugated silica nanoparticles against Paenibacillus larvae and their host, Apis mellifera honeybee
Apidologie - Tập 50 - Trang 616-631 - 2019
The aim of this work was to evaluate antimicrobial activity against Paenibacillus larvae and oral toxicity against workers and larvae of Apis mellifera of gallic acid (GA) and two nanohybrids of GA and silica. Also, the physicochemical, structural, and energetic properties of GA and the nanohybrids were determined through structure–activity relationship (SAR). The minimum inhibitory concentration ......
Male mites (Varroa destructor) perceive the female sex pheromone with the sensory pit organ on the front leg tarsi
Apidologie - Tập 46 - Trang 771-778 - 2015
Varroa destructor males are attracted by a volatile sex pheromone of female mites. We assume that this pheromone is perceived by the sensory pit organ on the front leg tarsi. To test this hypothesis, the front legs of the males were varnished with nail polish. The behavior of the thus treated males toward attractive female mites was analyzed in our mating bioassay and comp......
Tergal gland components of reproductively dominant honey bee workers have both primer and releaser effects on subordinate workers
Apidologie - - 2019
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