When earthworms invade a forested area, they consume the forest floor, and herbaceous plant diversity and tree seedling density decrease dramatically.
(earthworms; invade; a forested area) (they; consume; the forest floor; T:When earthworms invade a forested area) (herbaceous plant diversity and tree seedling density; decrease dramatically; )
earthworms they herbaceous plant diversity and tree seedling density
invade consume decrease dramatically
a forested area
the forest floor T:When earthworms invade a forested area