Abstract: "Compared to a decade ago, today the number of insect species in many areas has decreased by about one-third. This is the result of a survey of an international research team led by scientists from the Technical University of Munich (TUM). The loss of species mainly affects grasslands in the vicinity of intensively farmed land—but also applies to forests and protected areas...Since 2008, they have measured a decrease of approximately 40 percent of insect biomass in the forests they studied. In grasslands, the results were even more alarming: At the end of the study period, the insect biomass decreased to only one-third of its former level."
