Among the successes of the Biosphere’s first decade was the return of juniper, a native shrub that had been lost from the island.
The last native plant on the island was dug up from Glen Auldyn in 1947 in an attempt to save it, but died soon afterwards.
Since 2016, it has been replanted in the uplands, with surveys showing “encouraging survival and growth”.
Meanwhile on the Calf of Man, controlling rats – referred to locally as “longtails” to avoid bad luck – has helped the Manx shearwater recover to about 1,500 breeding pairs.
Nine new Marine Nature Reserves have been created since 2016, and together they now cover more than half the sea within three nautical miles of the coast.
By the end of last year, 420 hectares of damaged peatland had also been restored.