The natterjack toad (Epidalea calamita) is the UK's rarest amphibian, found only at around 60 sites primarily on sand dunes and lowland heaths. Fully protected under UK and EU law, the natterjack's conservation status is inseparable from its welfare—a population of only a few thousand individuals faces existential pressure from habitat loss and degradation.
Natterjacks are distinguished from common toads by their yellow dorsal stripe, parallel-running parotid glands, and distinctive loud breeding call—one of the loudest sounds produced by any UK animal. They require open, sparsely vegetated sandy habitats with shallow, warm, temporary pools for breeding. Their shallow pools warm rapidly in spring, enabling early breeding, but also dry out quickly—making pool management critical.
Habitat loss: Sand dune stabilization through vegetation succession, coastal development, and heath management failures have eliminated most historical natterjack habitat. Pool drying: Climate change is reducing pool permanence at breeding sites. Predation: Fish stocked in breeding pools consume eggs and larvae. Road mortality: Adults moving between breeding and hibernation sites face road collision risk. Pollution: Herbicide and pesticide drift affects invertebrate prey and breeding pool ecology.
Successful natterjack conservation involves: scrub clearance to maintain open habitat, pool creation and management (deepening, fencing from livestock), fish removal from breeding pools, road crossing tunnels, captive breeding programs at critically threatened sites, and translocation to restored habitats. The Amphibian and Reptile Conservation Trust leads UK natterjack conservation.
Part of the Animal Welfare Hub — 2357+ pages of evidence-based animal welfare information.