Adders are the UK's only venomous snake and face persecution, habitat loss and fragmentation, with individual welfare and population-level conservation concerns intertwined.
Adders face both direct welfare harm through persecution and indirect harm through habitat fragmentation that reduces food availability and mate access. Each adder killed unnecessarily represents a preventable welfare harm to a legally protected species. Heathland and chalk grassland management that maintains adder habitat benefits individual welfare by providing the conditions needed for natural behaviour and reproduction.