Assertion: tern's population | /r/HasProperty | stable
Facets:
Source sentences:
text: Although some Eurasian populations are stable, numbers in North America have fallen by more than 70% in the last 40 years, and there is an overall negative trend in the global estimates for this species.
text: The arctic tern population appears to be stable, but population trends are difficult to observe because of the birds’ remote range.
text: The population is stable or increasing.