Wasps Hijack Ant Shelters in Tropical Trees, Threatening Plant Protection

Recent research shows that predatory wasps are increasingly taking over the shelters that tropical trees construct for their ant defenders. These ant colonies traditionally guard the trees against herbivorous insects, forming a long‑standing mutualistic relationship. The wasp takeover is especially prevalent in disturbed habitats such as oil palm plantations, where human activity alters the ecosystem. This shift could undermine the protective alliance between trees and ants, potentially affecting the trees’ survival and the broader forest recovery process. Scientists warn that such disruptions may have lasting evolutionary consequences for tropical forest communities.