Trees in Protected Areas

Conservation goals range anywhere from aesthetics to survival. Among the most important of those is ensuring that an ecosystem is resilient to disturbances and provides as many different functions as possible. According to an assessment by a USDA Forest Service cooperating researcher, those qualities can be quantified using two metrics: rarity and evolutionary distinctiveness. Rarity…  More 

Saving the Torreya

A century ago, about half a million torreya trees grew in the wild. Today, there are fewer than 1,000. Is extinction imminent, or can the species be saved? “I’m more optimistic now, after the Torreya Tree of Life Workshop,” says USDA Forest Service geneticist Dana Nelson. “The workshop brought a large group of enthusiastic people…  More 

The Most Vulnerable Trees

What do water locust, Texas walnut, chalk maple, pyramid magnolia, two-wing silver bell, and butterbough all have in common? They’re among the U.S. tree species most vulnerable to climate change, according to a study by North Carolina State University (NCSU) and the U.S. Forest Service. The Forest Service Forest Health Protection program sponsored the study,…  More 

Hemlock Seed Banking

Eastern and Carolina hemlock trees in more than 400 counties across 19 states are dead, dying, or threatened by infestation of the invasive hemlock woolly adelgid. As the aphid-like pest continues to spread throughout the ranges of these economically and ecologically important trees, scientists, managers, and other specialists from North Carolina State University’s (NCSU) Camcore…  More