#InsectApocalypse highlighted alarming global insect population collapse, with implications for ecosystems, food security, and biodiversity.

Krefeld Study

October 2017 study documenting 75% flying insect biomass decline in German nature reserves (1989-2016) sparked global alarm. Subsequent research confirmed: 40% of insect species declining, one-third endangered, butterflies down 53% in Europe (1990-2017), and accelerating extinction rates.

Causes & Consequences

Drivers included: habitat loss, pesticides (especially neonicotinoids), monoculture agriculture, climate change, light pollution, and invasive species. Insects underpin ecosystems: pollination (75% of crops), nutrient cycling, soil health, food for birds/fish/mammals. Their collapse threatened ecosystem functioning and food webs.

Silent Catastrophe

Unlike charismatic megafauna, insect decline was invisible to most people—noticed first by scientists and older people recalling windshields covered with bugs. The “windshield phenomenon” anecdote became viral shorthand: cars no longer splattered with insects revealed horrifying absence.

Agricultural Impact

Pollinator decline threatened $235-577 billion annual crop value globally. Farmers faced pollination deficits requiring truck-transported honeybees (themselves declining) or hand-pollination. The crisis exposed agricultural dependence on “free” ecosystem services taken for granted.

Movement Response

Campaigns promoted: pollinator gardens, pesticide bans, habitat corridors, reducing lawns, leaving leaf litter, and supporting organic agriculture. Cities installed bee hotels and wildflower meadows. The hashtag made insect conservation mainstream concern, not just entomologist niche interest.

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0185809 https://www.theguardian.com/environment/2019/feb/10/plummeting-insect-numbers-threaten-collapse-of-nature