Steve Robertson, of NHFT, described aspen as a "charismatic" tree for forest biodiversity.

BBC: Bid to boost 'charismatic' tree

Roddy Macleod, of Forest Enterprise Scotland, which has planted hundreds of young aspen, said it was a positive project.

BBC: Bid to boost 'charismatic' tree

He has embarked on an ambitious plan to regrow stands of the imperiled Aspen tree, protecting them from elk with fortresslike structures made from forest slash.

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