Assertion: mute swan | /r/HasProperty | invasive species
Facets:
value: widely
type: DEGREE
value: recently
type: TEMPORAL
value: because of its rapidly increasing numbers
type: CAUSE
value: in north america
type: LOCATION
Source sentences:
text: In fact, the mute swan is an invasive species brought over from Europe that poses a threat to native waterfowl and other wildlife as it encroaches on their habitat and eats their food.
text: It is an introduced species in North America – home to the largest populations outside of its native range – with additional smaller introductions in Australasia and southern Africa.
text: Is Mute Swan an Invasive Species?
text: Recently, it has been widely viewed as an invasive species because of its rapidly increasing numbers and its adverse effects on other waterfowl and native ecosystems.
text: Since being introduced into North America, the mute swan has increased greatly in number, to the extent that it is considered as an invasive species.
text: It is an invasive species.