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  • 1
    Electronic Resource
    Electronic Resource
    The effects of colony-level selection on the social organization of honey bee (Apis mellifera L.) colonies: colony-level components of pollen hoarding (1995)
    Springer
    Behavioral ecology and sociobiology 36 (1995), S. 135-144 
    Details
    ISSN: 1432-0762
    Keywords: Apis mellifera ; Colony-level selection ; Pollen storage ; Foraging ; Colony growth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Two-way selection for quantities of stored pollen resulted in the production of high and low pollen hoarding strains of honey bees (Apis mellifera L.). Strains differed in areas of stored pollen after a single generation of selection and, by the third generation, the high strain colonies stored an average 6 times more pollen than low strain colonies. Colony-level organizational components that potentially affect pollen stores were identified that varied genetically within and between these strains. Changes occurred in several of these components, in addition to changes in the selected trait. High strain colonies had a significantly higher proportion of foragers returning with loads of pollen, however, high and low strain colonies had equal total numbers of foragers Colony rates of intake of pollen and nectar were not independent. Selection resulted in an increase in the number of pollen collectors and a decrease in the number of nectar collectors in high strain colonies, while the reciprocal relationship occurred in the low strain. High and low strain colonies also demonstrated different diurnal foraging patterns as measured by the changing proportions of returning pollen foragers. High strain colonies of generation 3 contained significantly less brood than did low strain colonies, a consequence of a constraint on colony growth resulting from a fixed nest volume and large quantities of stored pollen. These components represent selectable colony-level traits on which natural selection can act and shape the social organization of honey bee colonies
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00170718
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The effects of colony-level selection on the social organization of honey bee (Apis mellifera L.) colonies: colony-level components of pollen hoarding (1995)
    Springer
    Behavioral ecology and sociobiology 36 (1995), S. 135-144 
    Details
    ISSN: 1432-0762
    Keywords: Key wordsApis mellifera ; Colony-level selection ; Pollen storage ; Foraging ; Colony growth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Two-way selection for quantities of stored pollen resulted in the production of high and low pollen hoarding strains of honey bees (Apis mellifera L.). Strains differed in areas of stored pollen after a single generation of selection and, by the third generation, the high strain colonies stored an average 6 times more pollen than low strain colonies. Colony-level organizational components that potentially affect pollen stores were identified that varied genetically within and between these strains. Changes occurred in several of these components, in addition to changes in the selected trait. High strain colonies had a significantly higher proportion of foragers returning with loads of pollen, however, high and low strain colonies had equal total numbers of foragers. Colony rates of intake of pollen and nectar were not independent. Selection resulted in an increase in the number of pollen collectors and a decrease in the number of nectar collectors in high strain colonies, while the reciprocal relationship occurred in the low strain. High and low strain colonies also demonstrated different diurnal foraging patterns as measured by the changing proportions of returning pollen foragers. High strain colonies of generation 3 contained significantly less brood than did low strain colonies, a consequence of a constraint on colony growth resulting from a fixed nest volume and large quantities of stored pollen.These components represent selectable colony-level traits on which natural selection can act and shape the social organization of honey bee colonies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002650050133
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Honeybee (Apis mellifera L.) queen feces: Source of a pheromone that repels worker bees (1987)
    Springer
    Journal of chemical ecology 13 (1987), S. 583-591 
    Details
    ISSN: 1573-1561
    Keywords: Honeybee ; Apis mellifera ; Hymenoptera ; Apidae ; feces ; queen pheromone ; queen acceptance ; repellent
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract When placed in a small observation arena with workers, most young virgin honeybee queens released fecal (hindgut) material during agonistic interactions with workers and with each other. On release of this material, workers moved to the sides of the arena and groomed themselves. Bioassays of virgin queen fecal material demonstrated that it contains pheromone that repels workers and stimulates grooming behavior. Pheromone was present only in the feces of virgin queens that were more than 24 hr old and less than 2 weeks old. Feces of 2- to 4-day-old workers and virgin queens more than 2 weeks old did not elicit an avoidance response by workers. Moreover, the feces of young virgin queens had a strong fragrance, while that of older queens had a rancid odor and that of young workers had no detectable odor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01880101
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Extractable hydrocarbons and kin recognition in honeybee (Apis mellifera L.) (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 745-756 
    Details
    ISSN: 1573-1561
    Keywords: Honeybee ; Apis mellifera ; Hymenoptera ; Apidae ; hydrocarbons ; kin recognition ; genetic relatedness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Hydrocarbons of worker honeybees of known pedigree were extracted and analyzed using gas chromatography and mass spectrometry. Variability in hydrocarbon extracts of individual workers is determined at least in part genetically. Correlations in hydrocarbon composition of extracts were highest among more closely related individuals. Individuals maintained in groups exchange hydrocarbons but still maintain enough self-produced compounds to retain genetically determined individual characteristics. These results demonstrate that extractable hydrocarbons of bees provide sufficiently reliable genetic information to function as labels for use during kin recognition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00994197
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    Paper (German National Licenses)
    Fulltext
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