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Tim Male.
"French Polynesia (France), Pitcairn Island (Great Britain)". World Wildlife Fund. Retrieved 21 October 2019. Henderson Island was occupied by Polynesians from 800 to 1600 but not since, and it has now been set aside as a World Heritage Site by UNESCO. Conservation organizations are working with Pitcairn Islanders to establish a management plan that will protect the flora and fauna of Henderson, Oeno, and Ducie Islands from introduced species and unsustainable use (Vickery 1994). In addition, some of Pitcairn's 22 species of land snail and plant species occupy less than 1 hectare of habitat, and forest conservation and control of the invasive tree Syzygium jambos is important for the survival of both snail and plant species (Preece 1995).
Preece R. C. (1995) Systematic review of the land snails of the Pitcairn Islands. In: The Pitcairn Islands: biogeography, ecology and prehistory. Benton T. G. & Spencer T. (eds.) London, Academic Press.