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Consequences of a short time exposure to a...

Dramatic losses of pollinating insects have become of global concern, as they threaten not only key ecosystem services but also human food production. Recent research provided evidence that interactions between ecological stressors are drivers of declining pollinator health and responsible for observed population collapses. We used the honeybee Apis mellifera and conducted a series of…

A citizen science supported study on seasonal diversity...

Robert Brodschneider Kristina Gratzer, Elfriede Kalcher-Sommersguter, Helmut Heigl, Waltraud Auer, Rudolf Moosbeckhofer & Karl Crailsheim Scientific Reports volume 9, Article number: 16633 (2019) https://www.nature.com/articles/s41598-019-53016-5 Austrian beekeepers participated in the “C.S.I. Pollen” study as citizen scientists and collected pollen from honey bee colonies in hive mounted traps every three weeks from April to September in 2014 and 2015 to…

Exposure of honey bee larvae to thiamethoxam and...

Tesovnik Tanja, Zorc Minja, Ristanić Marko, Glavinić Uroš, Stevanović Jevrosima, Narat Mojca, Stanimirović Zoran (2019) Exposure of honey bee larvae to thiamethoxam and its interaction with Nosema ceranae infection in adult honey bees, Environmental Pollution, DOI: 10.1016/j.envpol.2019.113443 Abstract During their lifetime honey bees (Apis mellifera) rarely experience optimal conditions. Sometimes, a simultaneous action of multiple…

The effect of diet types on some quality...

Slobodan Dolasevic, Jevrosima Stevanovic, Nevenka Aleksic, Uros Glavinic, Nebojsa Deletic, Mica Mladenovic & Zoran Stanimirovic The influence of various diets on the quality of Apis mellifera queens was assessed. Colonies intended for queen cell production were assigned to four groups fed on (1) sugar-only, (2) mix of sugar, honey and fresh pollen, (3) sugar and pollen substitute…

The Effect of Diet on the Composition and...

Honey proteins are essential bee nutrients and antimicrobials that protect honey from microbial spoilage. The majority of the honey proteome includes bee-secreted peptides and proteins, produced in specialised glands; however, bees need to forage actively for nitrogen sources and other basic elements of protein synthesis. Nectar and pollen of dierent origins can vary significantly in…

The rise and fall of major royal jelly...

The genome of the western honeybee (Apis mellifera) harbors nine transcribed major royal jelly protein genes (mrjp1‐9) which originate from a single‐copy precursor via gene duplication. The first MRJP was identified in royal jelly, a secretion of the bees’ hypopharyngeal glands that is used by young worker bees, called nurses, to feed developing larvae. Thus,…

A computer vision system to monitor the infestation...

Kim Bjerge, Carsten Eie Frigaard, Peter Høgh Mikkelsen, Thomas Holm Nielsen, Michael Misbih, Per Kryger Highlights: Computer vision system to monitor the infestation level of varroa mites in abeehive. A nondestructive method as alternative to traditional methods. The vision system is based on deep learning to determine the number of infested bees. Measures an infestation level…

Coexistence of genetically different Varroa destructor in Apis...

Gajić B, Muñoz I, De la Rúa P, Stevanović J, Lakić N, Kulišić Z, Stanimirović Z. Abstract The aim of this study was to investigate the genetic diversity of Varroa destructor parasitizing Apis mellifera colonies and to test for possible host-parasite association at the mitochondrial DNA (mtDNA) level. Six A. mellifera haplotypes (including a novel C2aa) and five haplotypes of V.…