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  • 1
    ISSN: 1573-1561
    Keywords: Apis mellifera L. ; honeybee queen mandibular pheromone ; retinue behavior ; attraction bioassays ; Hymenoptera ; Apidae ; honeybee pheromone ; (E)-9-keto-2-decenoic acid ; (R,E)-9-hydroxy-2-decenoic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Quantitative laboratory biosassays measuring short-range attraction of worker honeybees to pheromone-treated pipets or glass pseudo-queens are described. Each replicate involves only 15 workers, allowing a single colony to provide sufficient individuals for a complete study as well as for between-colony comparisons. The more sensitive pseudo-queen bioassay provides a measurable response at levels of queen mandibular extract of 10−7 than that of an average individual mated queen. Formation and maintenance of the pseudo-queen's retinue, as well as more detailed behavior, can be evaluated by following the actions of individual workers replayed on video tape. Using this sensitive bioassay, the response of workers to queen mandibular pheromone has been shown to be sensitive to daily variation and colony source of the workers, but independent of worker age.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of chemical ecology 16 (1990), S. 851-860 
    ISSN: 1573-1561
    Keywords: Hymenoptera ; Apidae ; Apis mellifera L. ; honeybee queen mandibular semiochemicals ; retinue pheromone ; splitless capillary gas chromatography ; (E)-9-keto-2-decenoic acid ; methylp-hydroxybenzoate ; 4-hydroxy-3-methoxyphenylethanol ; (R,E)-(−)- and (S,E)-(+)-9-hydroxy-2-decenoic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The ontogeny of the five queen mandibular gland semiochemicals that initiate and maintain the retinue behavior of worker honeybees was investigated by quantitative splitless capillary gas chromatography. No detectable pheromone is present at the time of eclosion, but decenoic acid levels build up rapidly during the first week of the queen's life. Two aromatic components attain detectable levels later, with the more plentiful methylp-hydroxybenzoate preceding the 4-hydroxy-3-methoxyphenylethanol. Pheromone levels are maximal in mature, mated, laying queens. The ratio of (R,E)-(−)-9-hydroxy-2-decenoic acid to the (S,E)-(+) enantiomer increases with the age of the queen. Pheromone levels in queen mandibular glands are largely unaffected by queen banking, restraint with workers in mailing cages, and limited storage on dry ice. All major body parts of typical queens, especially the head and legs, have sufficient mandibular exudate to be highly attractive to worker bees.
    Type of Medium: Electronic Resource
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