Yellowstone aspen may be recovering thanks to 1990s reintroduction of wolves
From TheHill.com:
The restoration of gray wolves in Yellowstone National Park has helped revive an aspen tree population unique to the region, a new study has found.
Quaking aspen, one of the few deciduous tree species in the northern Rocky Mountain ecosystem, is once again thriving, after suffering severe decline during the 20th century, according to the study, published on Tuesday in Forest Ecology and Management.
