Assertion: pelican's threat | /r/HasProperty | disturbance of nesting birds
Facets:
value: by increased turbidity
type: CAUSE
value: by humans
type: OTHER
Source sentences:
text: Other threats to pelican populations include disturbance of nesting birds by humans, declining fish (food) populations, increased turbidity (e.g., from dredging, resulting in reduced visibility of prey); oil and other chemical spills, entanglement in fishing gear, shooting, extreme weather conditions (freezing of soft parts, destruction of nest sites by hurricanes, storms), disease, and parasitism.