Short answers, pulled from the story.
Assisted migration describes the intentional establishment of populations or meta-populations beyond a species' historic range. Conservation biologists first used the term in publications during 2004 to reduce biodiversity losses caused by climate change.
Forestry scientists prioritize timber production and forest health over ecological fears like invasive species potential. Debate concerning the ethics of assisted migration in forestry practice was both short-term and muted compared to that which prevails in conservation biology.
A self-organized group called the Torreya Guardians formed in 2004 to undertake its assisted migration. By 2018 citizens documented species thrival in dozen legacy horticultural plantings including seed production.
The western swamp tortoise represents the first example of an endangered vertebrate experimentally translocated due to climate change. First trial began in 2016 with release of 24 captive-raised juveniles into distant locations.
Scientists fear relocated species might spread diseases or become too successful in recipient ecosystems. The principal concern involves the potential for introduced species to drive out native flora and fauna.