A New, Chemical View of Ecosystems
Rare and powerful compounds, known as keystone molecules, can build a web of invisible interactions among species. The post A New, Chemical View of Ecosystems first appeared on Quanta Magazine

The biological world is awash in chemical signals. Ants lead their nest mates to food with winding trails of pheromones, plants exude aerosols to warn their neighbors of herbivores, and everything you experience as “smell” is a molecule latching onto your nose. Some molecular messages find their targets; most linger unread in the environment. But sometimes, other species — chemical eavesdroppers…