Assertion: swan's number | /r/CapableOf | create dilemma
Facets:
value: for habitat managers
type: TRANSITIVE-OBJECT
value: for wildlife
type: TRANSITIVE-OBJECT
Source sentences:
text: With few natural predators, numbers of these aggressive non-natives can build quickly, displace native species, and damage aquatic habitat by overgrazing vegetation, creating a dilemma for wildlife and habitat managers.