Tree, important for grizzly bears, affected by global warming, insects, and fungus
The whitebark pine is a tree that lives at high elevations and was historically unaffected by pine beetles but due to global warming this has changed. Also, blister rust, an introduced fungal infection has taken a large toll on the trees.
The pine nuts of the trees are collected by squirrels and Clarke’s nutcrackers who’s caches are an important food source for grizzly bears. With their decline the bears are being affected too.
Whitebark Pine May Gain Federal Protection