The common lizard is the UK's most widespread reptile, with welfare linked to habitat quality and access to basking sites and invertebrate prey.
Common lizard welfare depends on habitat that provides both thermal regulation sites (bare ground and rocks for basking) and adjacent vegetation for invertebrate prey and predator refuge. Habitat deterioration through scrub encroachment or loss of structural diversity reduces welfare at population level. Garden habitats with south-facing rough areas, log piles, and minimal cat predation pressure provide important urban refuges.