Besides a sharp decrease in the total biomass of flying insects in German nature reserves, the diversity of species has also declined. Researchers from Radboud University have shown that this applies to hoverflies. Insect populations have declined across the board, especially among more common species. The researchers will publish their results on 12 January in a special edition of PNAS that is devoted entirely to insect declines.
Click here for original story, In 25 years the number of hoverfly species has fallen sharply in German nature reserves
Source: Phys.org