Simulated climate change conditions unveil the toxic potential of the fungicide pyrimethanil on the midge Chironomus riparius: a multigeneration experiment.

摘要: Although it has been suggested that temperature increase may alter the toxic potential of environmental pollutants, few studies have investigated risk chemical stressors for wildlife under Global Climate Change (GCC) impact. We applied a bifactorial multigeneration study in order to test if GCC conditions effects low pesticide concentrations on life history and genetic diversity aquatic model organism Chironomus riparius. Experimental populations species were chronically exposed concentration fungicide pyrimethanil (half no-observed-adverse-effect concentration: NOAEC/2) two dynamic present-day simulations (11.0–22.7°C; 14.0–25.2°C) one future scenario (16.5–28.1°C). During 140-day study, survival, emergence, reproduction, population growth, C. riparius analyzed. Our results reveal high act synergistically midge In simulated scenarios, NOAEC/2 as derived from life-cycle toxicity provoked only slight-to-moderate beneficial or adverse contrast, exposure at thermal situation likely summer uncovered mortality growth rate. addition, was considerably reduced by scenario, but slightly current climatic conditions. near-natural (climatic) indicates not impact climate change, also pesticides pose reasonable insects future.