Insect abundance is plummeting with wild abandon, worldwide! Species evolve and go extinct as part of nature’s normal course over thousands and millions of years, but the current rate of devastation is off the charts and downright scary.
Moreover, there is no quick and easy explanation for this sudden emergence of massive loss around the globe. Yet, something is dreadfully horribly wrong. Beyond doubt, it is not normal for 50%-to-90% of a species to drop dead, but that is happening right now from Germany to Australia to Puerto Rico’s tropical rainforest.
Scientists are rattled. The world is largely unaware of the implications because it is all so new. It goes without saying that the risk of loss of insects spells loss of ecosystems necessary for very important stuff, like food production.
Farmland birds that depend upon a diet of insects in Europe have disappeared by >50% in just three decades. French farmland partridge flocks have crashed by 80%. Nightingale abundance is down by almost 80%. Turtledoves are down nearly 80%.
In Denmark (1) owls, (2) Eurasian hobbies, and (3) Bee-eaters, which subsist on large insects like beetles and dragonflies, have abruptly disappeared. Poof, gone!
Krefeld Entomological Society (est. 1905) in Germany trapped insect samples in 63 nature preserves in Europe representing nearly 17,000 sampling days (equivalent to 46.5 years). Krefeld consistently found massive declines in every kind of habitat they sampled. Up to 80%…