Assertion: bumblebee's population | /r/AtLocation | risk of extinction
Facets:
Source sentences:
text: The IUCN lists the animal as vulnerable, and a few roosting populations are at risk of extinction due primarily to human activity.
text: Small or inbred populations may also lose resilience to environmental changes, and are at risk of extirpation due to stochastic events such as fire or unusually wet or dry years.