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Airborne devastation

Airborne devastation

作者:甘嘌脉  时间:2019-03-07 08:13:01  人气:

By Hazel Muir AIR pollution can wreck trees by culling the predators that normally keep leaf-munching insects in check, say ecologists in Finland. Though this has long been suspected as a cause of damage to plants, this is the first time researchers have found hard evidence for it. Plagues of insects often devastate plants in polluted areas. Ecologists reasoned that this could happen either because pollution makes parasites of these insects less active, or because it kills off predators that eat the insects. Till now, however,