Assertion: caribou's number | /r/CapableOf | decline by about 72%
Facets:
value: in the last 60 years
type: TEMPORAL
value: over the last three generations
type: TEMPORAL
value: because of severe icing episodes
type: CAUSE
value: because of catastrophic die-off
type: CAUSE
Source sentences:
text: Numbers have declined by about 72% over the last three generations, mostly because of catastrophic die-off likely related to severe icing episodes.
text: Numbers have declined by about 72 percent in the last 60 years, mostly because of severe icing episodes due to changing weather conditions, where ice has covered vegetation and led to caribou starvation.