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  • brood pheromone  (1)
  • cuticular hydrocarbons  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Chemical recognition of queen cells by honey bee workersApis mellifera (Hymenoptera: Apidae) (1994)
    Springer
    Chemoecology 5-6 (1994), S. 6-12 
    Details
    ISSN: 1423-0445
    Keywords: chemical communication ; queen cells ; brood pheromone ; brood recognition ; fatty acid esters ; Hymenoptera ; Apidae ; Apis mellifera
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Honey bee workers are able to nurse or to destroy and thus to recognize the capped queen cells containing a pupa. Fatty acid esters, especially methyl oleate, methyl palmitate and ethyl oleate were found in significant amounts on the queen pupal cuticle. Methyl oleate, the major component, along with smaller amounts of methyl linoleate and methyl linolenate, were involved in the recognition of queen cells by workers. In natural conditions of the colony, queen cells containing a paraffin pupal lure with methyl oleate were accepted 5.9 days by workers, releasing about 1.8 queen pupa equivalents during that period, when control cells (without ester) were kept only 2.1 days. Although these esters are non specific to honey bees, they are of great importance in social regulation of the honey bee colony.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01259967
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Alkenes as a Sexual Pheromone in the Alfalfa Leaf-Cutter Bee Megachile rotundata (1999)
    Springer
    Journal of chemical ecology 25 (1999), S. 471-490 
    Details
    ISSN: 1573-1561
    Keywords: Hymenoptera ; Apoidea ; Megachile rotundata ; solitary bee ; cuticular hydrocarbons ; sexual behavior of males
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Because of its special biological features, the leaf-cutter bee Megachile rotundata is particularly well suited for breeding and use as a pollinator for fodder plants such as alfalfa. Its mating behavior has been extensively studied. Behavioral tests have shown that males explore any black spot as a potential mating partner. However, exclusive selection of young virgin females suggests involvement of olfactory cues in addition to visual stimuli. Experiments demonstrated that mating behavior could be induced in males by lures covered with pentane extracts of the epicuticular waxes of young females. These extracts contain 35% fatty acids, 26% alkanes, and 39% monoenes. Variations in the monoene subfraction allow distinction between young virgin females, which possess more 7-pentacosene and 9-pentacosene, and older females, which have more 5-monoenes. The findings show that male mate-seeking and copulatory activity is stimulated only by young female monoenes. A 40% increase in this activity was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1020993518226
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    Paper (German National Licenses)
    Fulltext
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