Wildlife

Wild Amphibian Chytrid Disease and Population Welfare

Chytridiomycosis caused by the Batrachochytrium dendrobatidis fungus has caused the most significant vertebrate disease-driven biodiversity loss in history.

Key Facts

Bd fungus has contributed to declines in over 500 amphibian species globally
Chytrid disrupts the skin physiology that amphibians rely on for electrolyte balance
Probiotic treatments show promise for protecting some species against infection
Captive assurance colonies maintain species at risk of extinction from chytrid
UK great crested newts and other native amphibians face emerging chytrid pressure

Welfare Considerations

Chytridiomycosis causes a slow death from electrolyte failure. Affected amphibians show lethargy, abnormal posture, and loss of righting reflex before death. The scale of suffering across millions of individual animals globally is enormous. Biosecurity to prevent spread and probiotic treatments to protect vulnerable populations represent the most practical welfare interventions.

What You Can Do

Clean and dry equipment before moving between water bodies to prevent chytrid spread
Support amphibian conservation organisations working on chytrid solutions
Never release captive amphibians into the wild, which risks introducing disease