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Born in an Alien Nest : How Do Social Parasite Male Offspring Escape from Host Aggression?

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    0381074 - ÚOCHB 2013 RIV US eng J - Článek v odborném periodiku
    Lhomme, P. - Ayasse, M. - Valterová, Irena - Lecocq, T. - Rasmont, P.
    Born in an Alien Nest : How Do Social Parasite Male Offspring Escape from Host Aggression?
    PLoS ONE. Roč. 7, č. 9 (2012), e43053/1-e43053/9. ISSN 1932-6203. E-ISSN 1932-6203
    Výzkumný záměr: CEZ:AV0Z40550506
    Klíčová slova: cuckoo bumblebees * head extract * male repellent odor
    Kód oboru RIV: CC - Organická chemie
    Impakt faktor: 3.730, rok: 2012

    In cuckoo bumblebees, the males completely lack morphological and chemical adaptations to social parasitism that the females possess. Moreover, young parasite males exhibit an early production of species-specific cephalic secretions, used as sexual pheromones. Host workers might thus be able to recognize them. Here we used a bumblebee host-social parasite system to test the hypothesis that social parasite male offspring exhibit a chemical defense strategy to escape from host aggression during their intranidal life. Using behavioral assays, we showed that extracts from the heads of young cuckoo bumblebee males contain a repellent odor that prevents parasite males from being attacked by host workers. We also show that social parasitism reduces host worker aggressiveness and helps parasite offspring acceptance.
    Trvalý link: http://hdl.handle.net/11104/0211622

     
     
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