 The species is the subject of an ongoing programme to save it from extinction in Jersey via a collaboration between the Government of Jersey, Durrell Wildlife Conservation Trust and Jersey Amphibian and Reptile Group (JARG), with support and sponsorship from several other organisations.The programme includes captive breeding and release, public awareness and habitat restoration activities.Trees generally considered native are the alder ("Alnus glutinosa"), silver birch ("Betula pendula"), sweet chestnut ("Castanea sativa"), hazel ("Corylus avellana"), hawthorn ("Crataegus monogyna"), beech ("Fagus sylvatica"), ash ("Fraxinus excelsior"), aspen ("Populus tremula"), wild cherry ("Prunus avium"), blackthorn ("Prunus spinosa"), holm oak ("Quercus ilex"), oak ("Quercus robur"), sallow ("Salix cinerea"), elder ("Sambucus nigra"), elm ("Ulmus" spp.)