A5078587393- Insect and Pesticide Research
- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Animal Ecology and Behavior Studies
University of Sussex
2016-2024
Surface waters are sometimes contaminated with neonicotinoids: a widespread, persistent, systemic class of insecticide leaching potential. Previous ecotoxicological investigations this chemical in aquatic ecosystems have largely focused on the impacts neonicotinoid imidacloprid; few empirical, manipulative studies investigated effect invertebrate abundances two other neonicotinoids which now more widely used: clothianidin and thiamethoxam. In study, we employ simple microcosm semi-field...
Arable field margins are often sown with wildflowers to encourage pollinators and other beneficial or desirable insects such as bees butterflies. Concern has been raised that these may be contaminated systemic pesticides neonicotinoids used on the adjacent crop, this negatively impact insects. The use of linked butterfly declines, species common blue (Polyommatus icarus) feed upon legumes commonly in arable margins, exposed toxins. Here, we demonstrate larval food plants P. icarus growing an...
There is widespread concern over the use of neonicotinoid pesticides in agro-ecosystem, due part to their high water solubility which can lead contamination non-target areas including standing surface water. Most studies investigating negative fitness consequences neonicotinoids have focused on bees, with little research impact other insects. Here we examined effect exposure aquatic larval stages hoverfly Eristalis tenax L. (Diptera: Syrphidae) a range concentrations (control, 5, 15, 50, 100...
Although neonicotinoids are targeted at insects, their predominant use as a seed dressing and long persistence in soils mean that non-target soil organisms such earthworms likely to be chronically exposed them. Chronic exposure may pose risks not evaluated most toxicity tests. We experimentally tested the effect of field-realistic concentrations commonly used neonicotinoid, clothianidin, on mortality, weight gain, food consumption assess impacts chronic over four months fitness L. terrestris...
Abstract There is growing concern that some managed and wild insect pollinator populations are in decline, potentially threatening biodiversity sustainable food production on a global scale. In recent years, there has been increasing evidence sub-lethal exposure to neurotoxic, neonicotinoid pesticides can negatively affect immunocompetence amplify the effects of diseases, likely contributing declines. Here we show range non-neural tissues haemocytes honeybee Apis mellifera express nicotinic...
There is growing concern that some managed and wild insect pollinator populations are in decline, potentially threatening biodiversity sustainable food production on a global scale. In recent years, there has been increasing evidence sub-lethal exposure to neurotoxic, neonicotinoid pesticides can negatively affect immunocompetence could amplify the effects of diseases, likely contributing declines. However, direct pathway connecting neonicotinoids immune functions remains elusive. this study...