Resource guarding is a normal dog behaviour that becomes a welfare problem when it leads to punishment or surrender; behaviour modification prevents escalation and improves outcomes for dogs.
Resource guarding occupies a complex welfare space: it is a normal evolutionary behaviour that becomes a welfare problem when it leads to aversive management responses or surrender. Dogs punished for resource guarding escalate their defensive behaviour as the punishment confirms the threat the guarding was designed to address. Welfare-appropriate management uses systematic desensitisation and counter-conditioning that teaches dogs resources are not at risk when approached, eliminating the defensive motivation.