Often these plants have an unfavorable effect on natural ecosystems, displacing native plants, changing the availability of food or shelter for native animals.
(these plants; have; an unfavorable effect on natural ecosystems; T:Often) Context(these plants have,List([6, 23))):(these plants; have an unfavorable effect on natural ecosystems displacing; native plants)
these plants have,List([6, 23))
these plants these plants
have have an unfavorable effect on natural ecosystems displacing
an unfavorable effect on natural ecosystems T:Often
native plants