Natterjack toads are Britain's rarest amphibian, confined to coastal dune systems and heathlands, facing welfare threats from habitat loss, predation, and the welfare implications of conservation translocations.
Natterjack toad welfare is closely tied to the availability of specific microhabitat conditions. They require warm, shallow pools that seasonal rain creates in sandy ground - the same ephemeral habitats that dune management and scrub encroachment destroy. Breeding failures in cold, deep, or vegetated pools cause egg mortality. Invasive predators including introduced fish and signal crayfish destroy breeding pool tadpole populations. Translocation welfare requires careful matching of source and destination habitat conditions, health screening to prevent disease spread, and appropriate life stage selection. Population viability depends on maintaining not just breeding pools but the surrounding sandy habitat for burrowing and foraging.