Adaptation and a 'Noah's Ark for trees' offer hope for endangered black ash

With the invasive emerald ash borer beetle decimating black ash across North America, according to the U.S. Forest Service, a team led by researchers at Penn State conducted an expansive study of genetic diversity in black ash seeds collected across the tree's geographic range and stored in seed banks. The research was done with an eye toward someday reintroducing the ecologically and culturally important tree to U.S. and Canadian forests. As part of the research, the team established three…

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