Chytridiomycosis caused by Batrachochytrium dendrobatidis has devastated amphibian populations worldwide. Understanding its welfare impacts drives both conservation and individual animal welfare responses.
Chytridiomycosis causes prolonged individual welfare suffering - affected amphibians deteriorate progressively before death in a process that likely involves significant distress. At population scale, the welfare impact is among the largest of any wildlife disease. Conservation interventions including captive assurance colonies, reintroduction programmes, and habitat management that supports amphibian health directly reduce the welfare burden at individual and population levels. Biosecurity measures that prevent spread of Bd into new regions prevent future welfare suffering on a massive scale.