# Study reports more than 75% decline in flying insect biomass in German protected areas

Date: 2017

_No public text on this fact yet._

## Drivers

- Biodiversity Loss: https://factrail.ai/drivers/biodiversity-loss

## Sources

_Sources are listed on the canonical page._

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/hallmann-german-insect-biomass-decline-2017