Insect declines: new alarm over mayfly is ‘tip of iceberg’, warn experts

The Guardian 11th Jan 2018. Damien Carrington. Modest levels of pollution found in many English rivers are having a devastating impact on mayflies, new research suggests, killing about 80% of all eggs. Clouds of emerging mayflies were once a regular sight on English summer evenings and they are a key part of the food chain that supports fish, birds and mammals. The finding that even pollution well below guidelines can cause serious harm adds to concerns about plummeting insect numbers. In October, a study found that the abundance of flying insects has plunged by 75% in 25 years, prompting warnings that the world is “on course for ecological Armageddon”, with profound impacts on human society. Paul Knight, chief executive of Salmon and Trout Conservation (STC), which is conducting an in-depth three-year survey of rivers, said: “The results of this groundbreaking new study are irrefutable. We believe this is just the tip of the iceberg. Lose your invertebrates and other species will follow.” Read The Guardian article >