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2026-06-09 · percent of 1989 insect biomass

Flying insects crashed in protected areas

German nature reserves saw roughly three-quarters fewer insects in traps over 27 years — not just farmland.

How to read: 1 cell = 0.1 percent of 1989 insect biomass (0.1% of insect biomass in German reserves). 1,000 cells total.

Flying insects crashed in protected areas. German nature reserves saw roughly three-quarters fewer insects in traps over 27 years — not just farmland.

All 1000 cells. 1 cell = 0.1 percent of 1989 insect biomass (0.1% of insect biomass in German reserves). Hover or tap any square for details.

Hallmann et al. PLOS ONE 2017: ~75% decline in flying insect biomass in German protected areas.

  • PLOS ONE — insect decline

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