Assertion: mountain gorilla's population | /r/CapableOf | decline to less than 3,000
Facets:
value: by the 1980s
type: TEMPORAL
value: due to poaching
type: CAUSE
Source sentences:
text: The population of these animals declined from more than 30,000 individuals in the 1960s to less than 3,000 by the 1980s due to poaching.