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dc.contributor.authorVerena Stroblen_US
dc.contributor.authorSelina Bruckneren_US
dc.contributor.authorSarah Radforden_US
dc.contributor.authorSarah Wolfen_US
dc.contributor.authorMatthias Albrechten_US
dc.contributor.authorLaura Villamar-Bouzaen_US
dc.contributor.authorJakkrawut Maitipen_US
dc.contributor.authorEleonora Kolarien_US
dc.contributor.authorPanuwan Chantawannakulen_US
dc.contributor.authorGaétan Glauseren_US
dc.contributor.authorGeoffrey R. Williamsen_US
dc.contributor.authorPeter Neumannen_US
dc.contributor.authorLars Strauben_US
dc.description.abstractThe ubiquitous use of agrochemicals is one driver for the ongoing loss of insect biomass and diversity. Data show that field-realistic concentrations of neonicotinoid insecticides can negatively affect both population density and the fitness of solitary bees. However, the underlying mechanisms for these effects remain poorly understood. Here, using an established semi-field experimental set-up and Osmia cornuta as a solitary bee model, we examined the effects of field-realistic concentrations of a common neonicotinoid insecticide (clothianidin) on male larvae and adults. Besides measuring lethal (i.e., overwintering success and adult survival) and sub-lethal endpoints (i.e., emergence mass and emergence duration), we examined, for the first time, potential effects on the male reproductive physiology of a solitary bee (i.e., sperm quantity and viability). The data revealed no significant effects on any of the measured response variables. This may be due to the low degree of clothianidin exposure (0.56 ng g−1) and/or the apparent low susceptibility of solitary bee larvae to neonicotinoids. Furthermore, it is conceivable that ideal foraging conditions, combined with optimal weather and lack of other environmental stressors, may have improved the ability of bees to cope with the insecticide. To reliably assess and understand the environmental hazards of agrochemicals, a holistic approach, including laboratory, semi-field and field data is required. Knowledge of underlying mechanisms will help to mitigate the current global declines of insect populations.en_US
dc.subjectAgricultural and Biological Sciencesen_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.titleNo impact of neonicotinoids on male solitary bees Osmia cornuta under semi-field conditionsen_US
article.title.sourcetitlePhysiological Entomologyen_US
article.volume46en_US Food Safety Authorityen_US Mongkut's University of Technology North Bangkoken_US Agroscope Reckenholz-Tanikonen_USät Freiburgen_US of Bernen_US Universityen_US Agroscope Changins-Wadenswilen_USé de Neuchâtelen_US Mai Universityen_US
Appears in Collections:CMUL: Journal Articles

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