The leaves and bark are highly nutritious and are quite desirable in any potential beaver habitat. As important as they are to beavers, however, aspen trees are integral to the survival of ruffed ...

But the situation began improving following the reproduction of gray wolves in 1995-1996, as these animals supplemented the predation efforts of bears, cougars and human hunters outside the park, per ...

Gray wolves were reintroduced in Yellowstone National Park in 1995 to help control the numbers of elk that were eating young trees, and it is finally paying off for quaking aspen.

Quaking aspen, Populus tremuloides, gets its scientific name from a characteristic of the leaf. The heart-shaped leaves have a fine-toothed margin, and the petiole — the stem that attaches the leaf to ...

This is our celebrated tree of fall, the quaking aspen so named for those leaves that flicker in the breeze, twinkle in the sun and stir our souls. Maybe you didn't know that about the name ...

Aspen drops its leaves in winter but, of course, remains alive and thus requires metabolic energy. The soft tan to greenish hues often visible in aspen bark mark an important photosynthetic ...

Quaking aspen leaves turn from green to yellow in the San Juan River Valley in Colorado. Aspens (below, left) look similar to birch trees, but their bark does not peel.