The effect of a single pulse contamination with the neonicotinoid insecticide thiacloprid on invertebrates was investigated in mesocosms designed to realistically mimic communities in small streams within the agriculural landscape. The contamination resulted in long-term alteration of the overall invertebrate community structure. One species, the stonefly Nemoura cinerea, was affected at the lowest tested concentration, 70 times below the lowest known median lethal concentration (LC50).
Authors: Beketov MA et al. (2008) Science of the Total Environment 405: 96-108
http://www.famu.org/mayfly/pubs/pub_b/pubbeketovm2008p96.pdf
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