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Effect of the queen on worker reproduction and new queen production in the bumble bee Bombus terrestris Inra
Lopez-Vaamonde, C.; Brown, R.M.; Lucas, E.R.; Pereboom, J.J.M.; Jordan, W.C.; Bourke, A.F.G..
We tested the hypotheses that a non-volatile pheromone inhibiting worker egg-laying and queen development produced by Bombus terrestris queens has effects transferable (a) from workers to other workers or larvae, or (b) on wax. We subdivided small, young colonies with a single mesh screen (Experiment 1) and larger, older colonies with a double mesh screen (Experiment 2). One treatment (in both experiments) involved the transfer of workers, and one treatment (in Experiment 2 only) involved the transfer of wax, from the queenright to the queenless compartments. Queenlessness induced significantly earlier onset of worker aggression (followed by egg-laying) in all treatments in both experiments, and significantly earlier queen production in all treatments in...
Tipo: Journal Article Palavras-chave: BOURDON; HYMENOPTERE; REINE; INSECTE SOCIAL; COMPOSE SEMIOCHIMIQUE; INHIBITION; BIOLOGIE DE L'INSECTE; REPRODUCTION; DETERMINATION DE LA CASTE QUEEN; SOCIAL INSECT; SEMIOCHEMICAL COMPOUND; INSECT BIOLOGY; CASTE DETERMINATION; POPULATION DYNAMIC ; EGG LAYING.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007b622213c&uri=/notices/prodinra1/2009/12/
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Oviposition sites of the cypress seed bug Orsillus maculatus and response of the egg parasitoid Telenomus gr. floridanus Inra
Rouault, G.; Battisti, A.; Roques, A..
Phytophagous insects have many strategies to escape parasitoids, for example by hiding eggs into plant tissues, but oviposition in holes made by another insect is rather scarce. The cypress seed bug Orsillus maculatus Fieber (Heteroptera: Lygaeidae) is strictly dependent on the availability of cones of Cupressus sempervirens L. to oviposit. Females lay eggs either in exit holes cut through the cone scale by emerging adults of the cypress seed chalcid, Megastigmus wachtli Seitner (Hymenoptera: Torymidae), or on the inner side of scales of partly open cones. A recently discovered egg parasitoid belonging to the genus Telenomus has been shown to attack bug eggs in both oviposition sites. In this paper we investigated the parasitoid performance according to...
Tipo: Journal Article Palavras-chave: INSECTE DEPREDATEUR DES SEMENCES; CONE; SITE DE PONTE; DEGAT; STRATEGIE REPRODUCTIVE SEED INSECT; REPRODUCTIVE STRATEGY; EGG PARASITOID; HOST PARASITOID RELATIONSHIP; EGG LAYING.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007418d8917&uri=/notices/prodinra1/2010/11/
Registros recuperados: 2
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