The natterjack toad is Britain's rarest amphibian, restricted to coastal dune systems and inland heaths. Its welfare depends on highly specific habitat conditions that require active management.
Natterjack toad welfare is inseparable from the condition of their highly specific breeding habitat. Failed breeding seasons - caused by drought drying pools before tadpole metamorphosis or cold weather slowing development - cause mortality of entire cohorts. Individual adults face predation stress and energetic costs from high activity during the brief breeding season. Conservation management that maintains suitable pool conditions and removes scrub encroachment directly supports both individual and population welfare. The small number of remaining sites makes each population intrinsically irreplaceable for the species.