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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Insectes sociaux 28 (1981), S. 347-352 
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Ungefähr 18% der Arbeiterinnen vonLasioglossum zephyrum werden unter natürlichen Freilandbedingungen begattet. In der Gefangenschaft variiert die Bereitschaft der Weibchen zur Begattung mit dem Alter und dem Kastenzustand: 1) Von anderen Weibchen isolierte Weibchen paarten sich zu 69% innerhalb von drei Tagen nach dem Schlüpfen. 2) In Nestgruppen von je sechs Bienen paarten sich alle Königinnen, jedoch nur 7,7 % aller Arbeiterinnen. 3) Nach künstlicher Entfernung der Königin verpaarten sich die Ersatzköniginnen in allen von zehn Fällen. Diese Ersatzköniginnen waren alle vorher in Gegenwart der alten Königin unverpaart. 4) In einer Kolonie von fünf Bienen paarten sich alle drei Ersatzköniginnen nachdem der Reihe nach die jeweilige Königin entfernt worden war. Gleichzeitig wurden keine der jeweiligen Restarbeiterinen begattet. Diese Ergebnisse zeigen an, dass die Königin die Paarungsbeitschaft der Arbeiterinnen auch ausserhalb des Nestes inhibiert. Es erscheint möglich, dass sich Inhibition durch eine Königin nicht nur auf die Grösse der Ovarien von Arbeiterinnen auswirkt.
    Notes: Summary About 18 percent ofLasioglossum zephyrum workers mate in the field. In the laboratory female mating receptivity varied with age and caste: 1) sixty-nine percent of bees less than 3 days old mated when kept isolated from other females, 2) in six-bee colonies all of the queens, but only 7,7 percent of their workers, mated, 3) in queen removal experiments involving 10 colonies, all the replacement queens mated (these same individuals were not receptive to mating as workers), 4) in one colony of 5 bees, consecutive queen removal showed that each of the four bees identified as the queen mated, while none of the remaining workers did so. The results indicate that queen inhibition governs behavior of the workers even outside the nest. The inhibition may involve more than differences in ovarian size.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Behavior genetics 18 (1988), S. 425-438 
    ISSN: 1573-3297
    Keywords: kin ; recognition ; social learning ; heritable odors ; nestmate ; bees
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Recognition of kin in sweat bees is dependent upon social learning. Shortly after emergence as adults, bees learn the odors of nestmates, normally relatives, and use this knowledge to keep nonnestmate (and therefore nonkin) bees out. The odors are heritable so that once a bee learns the odors of its kin, it can recognize other kin that it has never met before. An individual guard bee does not seem to use knowledge of self as a reference. Larval learning of odors, common rearing of offspring, maternal inheritance, and inbreeding effects are not sufficient to explain the recognition of unfamiliar relatives. Individual guard bees can discriminate between close and distant relatives. Kin recognition may be a secondary or serendipitous use of odors that originally evolved for the recognition of mates and nest entrances.
    Type of Medium: Electronic Resource
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  • 3
    Publication Date: 2019-07-01
    Print ISSN: 0269-7491
    Electronic ISSN: 1873-6424
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Elsevier
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  • 4
    Publication Date: 1979-11-30
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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