Assertion: elk | /r/HasAspect | significant impact
Facets:
value: on their range
type: LOCATION
value: by trampling on vegetation
type: MANNER
value: by grazing
type: MANNER
value: on their food plants
type: TRANSITIVE-OBJECT
value: by browsing
type: MANNER
value: at high population levels
type: LOCATION
Source sentences:
text: At high population levels, elk can have a significant impact on their range and on their food plants by grazing, browsing, and trampling on vegetation.