Results 81 to 90 of about 30,792 (242)

When African and European Lineages Meet: The Genetic Landscape of Honey Bees in Argentina

Ecology and Evolution, Volume 15, Issue 10, October 2025.
Using a 272‐SNP panel, we explored how Africanized (AHB) and European (EHB) honeybee populations interact across Argentina's diverse landscapes. A clear latitudinal pattern in Africanization, with an interesting inverse relationship between African (A) and European (C) ancestry.
Arian Avalos, Alejandra Scannapieco, A. Carolina Monmany‐Garzia, Ravi Kiran Donthu, José Marcelino, Rosanna Giordano, Tugrul Giray, Alberto Galindo‐Cardona   +7 more
wiley   +1 more source

Histochemical Staining of Acetylcholinesterase in Carnolian Honeybee (Apis mellifera carnica) Brain after Chronic Exposure to Organophosphate Diazinon

Journal of Apicultural Science, 2020
Organophosphate insecticides are known to inhibit the activity of enzyme acetylcholinesterase. They affect olfactory learning and memory formation in honeybees.
G. Glavan
semanticscholar   +1 more source

In Vitro and In Vivo Effect of Amitraz on Honey Bee Drone Sperm Quality

Acta Zoologica, Volume 106, Issue 4, Page 493-502, October 2025.
ABSTRACT Honey bee hive infestation by the ectoparasitic mite, Varroa destructor, has been a major cause of declining populations. Treating such infestations is important for sustainability. Knowledge about the sub‐lethal effects of commonly used acaricides on drone reproductive health, particularly sperm quality, is limited. The effect of in vitro and
Janice Faith Murray, Gerhard van der Horst, Mike Allsopp, Retha Christina Magrietha Kotzé   +3 more
wiley   +1 more source

Gene flow in admixed populations and implications for the conservation of the Western honeybee, Apis mellifera [PDF]

, 2018
Anthropogenic activity, especially modern apiculture, has considerable impact on the natural distribution of the Western honeybee, Apismellifera, leading to the spread, replacement and fragmentation of many subspecies.
Excoffier, Laurent, Fluri, Peter, Heckel, Gerald, Neumann, Peter, Soland-Reckeweg, Gabriele   +4 more
core  

The influence of acetamiprid and deltamethrin on the mortality and behaviour of honeybees (Apis mellifera carnica Pollman) in oilseed rape cultivations

Apidologie, 2020
The aim of the research was to determine the influence of acetamiprid and deltamethrin on the mortality and behaviour of honeybees of the same variety, coming from the same source and estimated to be in good condition by a professional beekeeper, but in ...
Daria Dworzańska, G. Moores, J. Zamojska, Przemysław Strażyński, P. Węgorek   +4 more
semanticscholar   +1 more source

Transcriptomic analysis of the mandibular gland genes associated with reproductive dominance in Apis mellifera capensis Esch. parasitic workers

Physiological Entomology, Volume 50, Issue 3, Page 233-244, September 2025.
Biosynthesis of the fatty acid components of the Apis mellifera mandibular gland pheromones takes place in a stepwise manner. Differential gene expression in the mandibular gland tissue of workers from two subspecies of African honey bees with differing reproductive potentials and at two age groups was investigated.
Fiona Nelima Mumoki, Christian Walter Werner Pirk, Robin Michael Crewe, Abdullahi Ahmed Yusuf   +3 more
wiley   +1 more source

Grooming behavior in relation to varroa (Varroa destructor) infestation level of Carniolan honey bee colonies (Apis mellifera carnica) [PDF]

Journal of Central European Agriculture, 2018
Grooming behavior is one of the traits that enables Apis cerana resistance to ectoparasitic mite Varroa destructor. The study examines the proportion of damaged mites on 52 colonies (5 genotypes) of A. m. carnica in Croatia.
Marin Kovačić, Zlatko Puškadija, Marica Dražić   +2 more
doaj   +1 more source

Land Use and Season Interactively Affect Honeybee (Apis mellifera) Body Size and Fat Stores

Ecology and Evolution, Volume 15, Issue 8, August 2025.
Habitat fragmentation and loss due to anthropogenic activities have impacted the foraging success of many animals, including pollinators. In this study, we found that summer honeybees in urban and mixed habitats were smaller and had greater wing wear but had larger fat stores compared to those in agricultural areas, where fat stores dropped during the ...
Yongqiang Wu, Florian Menzel, Christoph Grüter   +2 more
wiley   +1 more source

Performance of two honey bee subspecies during harsh weather and Acacia gerrardii nectar-rich flow

Scientia Agricola
Both climatic factors and bee forage characteristics affect the population size and productivity of honey bee colonies. To our knowledge, no scientific investigation has as yet considered the potential effect of nectar-rich bee forage exposed to drastic ...
Awad Mohamed Awad, Ayman Ahmad Owayss, Abdulaziz Saad Alqarni   +2 more
doaj   +1 more source

Pollen elicits proboscis extension but does not reinforce PER learning in honeybees [PDF]

, 2013
The function of pollen as a reward for foraging bees is little understood, though there is evidence to suggest that it can reinforce associations with visual and olfactory floral cues.
Casteel, Erber, Goodman, Hammer, Hardin, Levin, Menzel, Menzel, Robertson, Roulston, Schmidt   +10 more
core   +2 more sources