This transformed what was a high mountain tree-filled landscape into the alpine tundra there today. "We were very surprised that these mature forests were preserved for thousands of years," Dave ...

The cooler temperatures shifted the tree line downslope and transformed the high mountain landscape from forest to the alpine tundra that exists today. One of the paper's authors, David McWethy ...

Alpine tundra also encompasses approximately 1/3 of the park. Alpine tundra is a fundamental and fragile resource, which requires park managers to give this ecosystem increased attention for ...