Great crested newts are protected under UK and EU law but continue to decline due to pond loss and habitat fragmentation.
Habitat loss forces great crested newts to migrate further between ponds, increasing road mortality and predation risk. Individual newts crossing roads or travelling through dry habitat experience acute predation stress and death. The creation of pond networks and terrestrial habitat between ponds reduces these risks by allowing safer movement. Conservation interventions that create habitat reduce individual welfare costs while protecting the population.