Experimental evolution reveals high insecticide tolerance in Daphnia inhabiting farmland ponds.

ABSTRACT: Exposure of nontarget populations to agricultural chemicals is an important aspect of global change. We quantified the capacity of natural Daphnia magna populations to locally adapt to insecticide exposure through a selection experiment involving carbaryl exposure and a control. Carbaryl tolerance after selection under carbaryl exposure did not increase significantly compared to the tolerance of the original field populations. However, there was evolution of a decreased tolerance in the control experimental populations compared to the original field populations. The magnitude of this decrease was positively correlated with land use intensity in the neighbourhood of the ponds from which the original populations were sampled. The genetic change in carbaryl tolerance in the control rather tha

SUBMITTER: Jansen M 

PROVIDER: S-EPMC4430768 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature