Assertion: caribou's number | /r/CapableOf | decline in the 1970s
Facets:
value: to about four in 2012
type: TEMPORAL
value: due to to human activity
type: CAUSE
value: from 30 caribou
type: LOCATION
Source sentences:
text: There is also a small population of boreal woodland caribou in Pukaskwa National Park, but their numbers declined from 30 caribou in the 1970s to about four in 2012, mainly due to human activity and its associated changes with predator and prey abundance, which caused excessive wolf predation.