科学家查明了对美国生态系统和生物多样性至关重要的关键植物,如橡树和鸟类。 Scientist identifies key plants, like oaks and asters, vital for U.S. ecosystems and biodiversity.

美国的昆虫学家道格·塔拉米已经发现了"关键"植物物种, University of Delaware entomologist Doug Tallamy has identified "keystone" plant species that are essential for supporting U.S. ecosystems by providing food for native insects. 只种植其中一种关键植物，如橡树、紫苑等，可以帮助恢复生物多样性。 Planting just one of these keystone plants, such as oaks, asters, and others, can help restore biodiversity. 这些植物构成生态食物网的重要部分,各区域的完整清单可在网上查阅。 These plants form a critical part of the ecological food web, and a complete list for various regions is available online.