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

Modest pollution in many English rivers is enough to kill 80% of eggs, increasing concerns over insects which are vital to all ecosystemsModest 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 gui