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Ash tree species in North America are under mortal threat from the Emerald Ash Borer (EAB), now in 35 states and five Canadian provinces.
The Red List of US Oaks report details for the first time the distributions, population trends, and threats facing all 91 native oak species in the U.S.
Oaks are critical to the health and function of forest and shrubland habitats in the United States, but many native oaks are threatened with extinction in the wild.
In 2012, more than two million acres of important sage-brush habitat burned in four Western States.
Earth has daunting climatic and socioeconomic challenges. Gardens wish to do their part in preserving biodiversity, but best practices are essential when working with and protecting wild populations.
Arboreta and gardens have an ability to fill an important role in germplasm conservation by participating in ex situ collections. Globally, trees are facing a human-driven mass extinction, and our native flora