Sand lizards are one of Britain's rarest reptiles, confined to Dorset and Surrey heathland and Lancashire dunes, with welfare and conservation status tightly linked to habitat quality.
Sand lizards in inadequate reintroduction sites without appropriate sandy egg-laying substrate experience reproductive failure. Animals in fragmented populations cannot disperse to find mates, causing inbreeding stress. Predation by cats and other introduced predators at heathland edges causes acute mortality. Deliberate killing of the species, while rare, causes acute suffering and is a serious criminal offence. Heathland management including controlled burning requires careful timing to avoid lizard mortality in active populations.