2 results for “Bombus”

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Research ArticleOpen accessEvery word in the titleEffect of Cadmium on Worker Ovary Morphology of Bombus morio (Hymenoptera: Bombini)Fábio Camargo Abdalla, Marina Pedrosa, Caio Eduardo da Costa Domingues, Paulo José BalsamoBees are valuable bioindicators, providing information regarding environmental conditions through different kinds of analyses. Therefore, the effect of cadmium on the morphology of ovaries of Bombus morio workers was used to study a concentration considered environmentally safe (1 ppb) in Brazil. Workers of the same estimated age exposed for 48 h to 1 ppb cadmium showed extensive morphological changes in … …American Journal of Agricultural and Biological Sciences, Vol. 13, Issue 1 · 10 Apr 2018 · 9,140 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsExposure to Mercury at Trace Concentrations Leads to Collapse of the Hepato-Nephrocitic System in Two Neotropical Species of BumblebeeFelipe Lissoni de Andrade Nogueira, Paulo José Bálsamo, Monica Jones Costa, Fábio Camargo AbdallaThis research aimed to investigate the effects of exposure to safe concentrations of mercury on the morpho-physiology of cells of the hepato-nephrocitic system of two species of neotropical bees. Workers of the neotropical bumblebee species Bombus morio and B. atratus were exposed to 0.2 ppb mercury for 48 h by ingestion. Bioassays were performed according some direction of OECD (2017) … …American Journal of Agricultural and Biological Sciences, Vol. 14, Issue 1 · 14 Dec 2018 · 8,617 accessesView PDF Cite