Assertion: cormorant's number | /r/CapableOf | decline in recent decades
Facets:
value: because of commercial fishing for bearded goby
type: CAUSE
value: because of increasing human disturbance
type: CAUSE
value: sharply
type: DEGREE
Source sentences:
text: Numbers of these birds have been declining sharply in recent decades, partly because of commercial fishing for bearded goby, partly because of increasing human disturbance, and partly because numbers of kelp gulls have been increasing because of human provisioning, and the gulls are active predators on the cormorant eggs and chicks.