Habitat destruction displaces and kills wild animal populations at a scale that dwarfs all other human welfare impacts on wildlife — making land use change a primary welfare concern.
Habitat destruction causes welfare harm at an almost incomprehensible scale. Animals in cleared forest die from machinery, suffocation, fire, and crushing. Survivors face displacement into inadequate habitat, competition with resident animals, starvation, and road mortality. The scale of individual animal suffering caused by deforestation — the direct deaths plus the chronic suffering of displaced survivors — is among the largest welfare catastrophes caused by human activity.