Assertion: prairie dog's population | /r/CapableOf | decrease by as much as 98%
Facets:
value: due to human activity
type: CAUSE
value: in modern times
type: TEMPORAL
Source sentences:
text: Historically, their range extended from Canada to Mexico, including parts of the American West, but in modern times their populations have decreased by as much as 98% due to human activity and they no longer inhabit Arizona.