Immunocontraception as a wildlife management tool raises ethical questions while offering welfare advantages over lethal control.
Wildlife contraception represents a significant welfare advance over lethal control in appropriate contexts. Animals remain in their natural social environment, social structures are preserved, and the welfare harms of culling are avoided. The approach requires ongoing management effort but avoids the acute and chronic welfare consequences of removal and killing programs. The ethical question of whether contraception itself constitutes inappropriate interference with natural processes is legitimate but must be weighed against the welfare and conservation costs of lethal alternatives.