Results 11 to 20 of about 508,749 (290)
Queen quality, performance, and winter survival of imported and domestic honey bee queen stocks [PDF]
Canadian beekeepers have faced high colony mortality each winter over the last decade. Frequently citing “poor queen quality” as a top contributing factor to colony loss, Canadian beekeepers report needing to replace half their queens each year. Domestic
L. A. Holmes +7 more
doaj +4 more sources
Fertility correlates with queen size and sperm quality in an ant. [PDF]
Fitness can vary between individuals of the same population for reasons related to nutrient acquisition during development, but also to the quality of the mating partners. We focus on ant queens of Cardiocondyla obscurior to investigate the effects of female and male morphology and sperm ...
Süß LM, Oettler J, Jaimes-Nino LM.
europepmc +5 more sources
A non-invasive method for profiling the gut microbiome and virome of honey bee queens [PDF]
High honey bee colony mortality worldwide has underscored the critical role of queen bee health in colony survival, with poor queen quality frequently linked to colony losses.
Leslie A. Holmes +4 more
doaj +2 more sources
Honey bee colonies maintain viable queens in part through communication with Queen Mandibular Pheromone (QMP), a mixture that signals the queen's presence and reproductive quality to workers.
Mark J Carroll +4 more
doaj +1 more source
The Effects of Co-Enzyme Q10 and Caffeine on Morphometric Characteristics of Queen Honey Bees
Honey bee queen quality is a critical factor of colony performance. Indications of such qualities can manifest themselves through morphological traits such as wet weight and thorax width.
Samet Okuyan, Paul Cross
doaj +1 more source
The quality of the honeybee queen has an important effect on a colony’s development, productivity, and survival. Queen failure or loss is considered a leading cause for colonies’ mortality worldwide.
Elena Facchini +7 more
doaj +1 more source
Quality of queen bees in different ways of their production
Timely replacement of queens is one of the main zootechnical methods for maintaining the vital activity of bee families, and searching for ways to improve their quality is an urgent problem. The purpose of this study was to evaluate the effect of the method of obtaining queen bees of Apis mellifera sossimai and Apis mellifera carpatica breeds on their ...
Vitalii Kucheriavyi +2 more
openaire +2 more sources
Honey Bee Queens and Virus Infections
The honey bee queen is the central hub of a colony to produce eggs and release pheromones to maintain social cohesion. Among many environmental stresses, viruses are a major concern to compromise the queen’s health and reproductive vigor.
Esmaeil Amiri +3 more
doaj +1 more source
Recent work demonstrated that honey bee (Apis mellifera L.) queens reared in pesticide-laden beeswax exhibit significant changes in the composition of the chemicals produced by their mandibular glands including those that comprise queen mandibular ...
Elizabeth M. Walsh +6 more
doaj +1 more source
Control agents on the quality of Africanized honeybee queens
The objective of this study was to evaluate the effect of the entomopathogenic fungus Beauveria bassiana, used in large field crops, and of the pomegranate Punica granatum aqueous extract, with insecticidal potential for insect control, on the quality of Africanized Apis mellifera queens.
Michele Potrich +7 more
openaire +3 more sources

