Conservation biology focuses on species and ecosystems while animal welfare focuses on individual animals, but the two fields are increasingly recognised as complementary and mutually reinforcing.
The integration of animal welfare into conservation biology is still a work in progress. Interventions that are ecologically justified — such as predator reintroduction, invasive species control, or population culling — often cause significant individual animal suffering. Compassionate conservation challenges practitioners to ask whether ecologically equivalent alternatives with lower welfare costs exist, and to be transparent about the welfare trade-offs in interventions they choose. This integration improves both scientific rigor and ethical coherence.