How habitat loss from palm oil and logging is threatening proboscis monkey populations and welfare in Borneo.
Proboscis monkey welfare is directly threatened by habitat destruction that has accelerated dramatically with palm oil expansion. As obligate riverine specialists, they cannot adapt to the degraded secondary forest or plantation landscapes that have replaced their habitat. Loss of riverine primary forest leaves proboscis monkey groups without adequate food, shelter, and movement corridors. Isolated groups in habitat fragments face reproductive failure and extinction debt. The welfare harm is chronic — persistent nutritional stress, reduced social group stability, and increased exposure to human conflict. Consumer choices around certified sustainable palm oil have a direct connection to proboscis monkey welfare outcomes.