Could also be that insects evolved to avoid long black patches of ground. That doesn’t look likely, but also not impossible. That’s why we need the study. Als

Could also be that insects evolved to avoid long black patches of ground. That doesn’t look likely, but also not impossible. That’s why we need the study. Also, predator-prey systems (https://en.wikipedia.org/wiki/Lotka–Volterra_equations https://en.wikipedia.org/wiki/Lotka–Volterra_equations) can have fairly large cycles with huge population swings. That makes verifying that there really is a decline not _that_ easy. You can’t just repeat an insect count done 30 years ago and compare the numbers.