Assertion: american pika | /r/CapableOf | act as ecosystem engineers
Facets:
value: because of their extensive haying activities
type: CAUSE
value: at talus margins
type: LOCATION
Source sentences:
text: American pikas may act as 'ecosystem engineers' at talus margins because of their extensive haying activities.
text: American pikas may act as 'ecosystem engineers' at talus margins because of their extensive haying activities.