Trophic effects of Bti-based mosquito control on two top predators in floodplain pond mesocosms
Verena Gerstle,
Eric Bollinger,
Alessandro Manfrin
et al.
Abstract:Chironomid (Diptera: Chironomidae) larvae play a key role in aquatic food webs as prey for predators like amphibian and dragonfly larvae. This trophic link may be disrupted by anthropogenic stressors such as Bacillus thuringiensis var. israelensis (Bti), a biocide widely used in mosquito control. In a companion study, we recorded a 41% reduction of non-target larval chironomids abundance in outdoor floodplain pond mesocosms (FPMs) treated with Bti. Therefore, we examined the diet of two top predators in the FP… Show more
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