Planet of the vines

摘要

Gaze out over a tropical rainforest and the scene looks idyllic -a kaleidoscope of trees festooned with colourful vines, orchids, ferns and lichens. Don't be fooled. Myriad ecological battles are being fought beneath this tranquil surface. None is more embittered than that between trees and their ancient enemies, the vines. Biologists like myself who study these jungle ecosystems are now seeing a shift in this war. Until a decade or so ago the two adversaries were evenly matched, but vines now seem to be on the march. If that continues, the face of our forests - and of our planet -could be changed irrevocably. We are left scrabbling to unearth the root cause.