نتایج جستجو برای: vespidae
تعداد نتایج: 793 فیلتر نتایج به سال:
Cladistic analysis of the European species ofPolistes is used to investigate the evolution .of social parasitism in the genus. The three species of social parasites (formerly the genus Sulcopolistes) are all inquilines: lacking a worker caste, and dependent on uSUIping the colony of a host species to obtain a worker force. El:vlERY'S Rule states that social parasites are more closely related to...
Starch gel electrophoresis with L-leucyl-beta-naphthylamide as substrate revealed five aminopeptidases in extracts of Polistes versicolor. These enzymes are presumably products of five structural gene loci. All but Lap1 aminopeptidases exhibited differential distribution in the developmental stages and in the tissues. Five dipeptidases were revealed with different dipeptides. These enzymes exhi...
The yellow-legged or Asian hornet (Vespa velutina colour form nigrithorax) was introduced into France from China over a decade ago. Vespa velutina has since spread rapidly across Europe, facilitated by suitable climatic conditions and the ability of a single nest to disperse many mated queens over a large area. Yellow-legged hornets are a major concern because of the potential impact they have ...
Highly eusocial insect workers exhibit age-related division of labor. Adults begin working inside the nest, moving to the nest periphery and later to foraging. Passage through this task sequence is associated with neuroanatomical changes in the mushroom bodies (MB) of honey bee (Apis) and ant (Camponotus) workers. We asked whether eusocial wasp workers (Polybia aequatorialis) exhibit similar ch...
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