Experimental evolution reveals high insecticide tolerance in Daphnia inhabiting farmland ponds

摘要: Exposure of nontarget populations to agricultural chemicals is an important aspect global change. We quantified the capacity natural Daphnia magna locally adapt insecticide exposure through a selection experiment involving carbaryl and control. Carbaryl tolerance after under did not increase significantly compared original field populations. However, there was evolution decreased in control experimental The magnitude this decrease positively correlated with land use intensity neighbourhood ponds from which were sampled. genetic change rather than treatment suggests widespread for associated that comes at cost. Our data suggest strong impact current on