3 ms·
Forgive my ignorance but when they say 75% of insects have disappeared over the last 50 years, do they mean species variance or biomass?
by enlyth 5y ago
Forgive my ignorance but when they say 75% of insects have disappeared over the last 50 years, do they mean species variance or biomass?
- 11235813213455 5y agobiomass (study in Germany, over 27 years) > "When the total weight of the insects in each sample was measured a startling decline was revealed. The annual average fell by 76% over the 27 year period, but the fall was even higher – 82% – in summer, when insect numbers reach their peak." https://www.theguardian.com/environment/2017/oct/18/warning-of-ecological-armageddon-after-dramatic-plunge-in-insect-numbers https://www.theguardian.com/environment/2017/oct/18/warning-...