Researchers from Germany recently conducted an experiment, published in PLOS One, to determine how much populations had declined and why.
To do so, they measured the total flying insect biomass, the weight of the insect catch, by using tent-like nets called Malaise traps. Those were deployed in 63 nature protection areas in Germany over the course of 27 years.
After analyzing the results, they found that flying insect biomass had decreased by 76 percent and up to 82 percent in the summers during the time of the study.
In fact, the scientists say their findings suggest “the entire flying insect community has been decimated over the last few decades,” the study read.
Scientists noted the drop occurred regardless of the habitat type, but changes in weather, land use and habitat characteristic were not the reason.