Amphibian Chytrid Disease and Wildlife Welfare

Chytrid fungus (Bd and Bsal) has driven over 90 amphibian species extinct and threatens hundreds more. The welfare and conservation crisis is global in scale.

Key Facts

Batrachochytrium dendrobatidis (Bd) has driven an estimated 90 amphibian species extinct since 1980
Bd causes chytridiomycosis, a skin disease that disrupts ion regulation, causing cardiac arrest
Batrachochytrium salamandrivorans (Bsal) threatens European salamander populations from Asia
Captive assurance colonies maintain populations of affected species while wild management strategies develop
Probiotic bacteria application to amphibian skin provides field-applicable disease mitigation in some species

Welfare Considerations

Chytrid disease causes cardiac arrest through disruption of ion regulation across the skin - a physiologically distressing mode of death for affected amphibians. The welfare harm at individual level is severe, and the scale - affecting hundreds of species with billions of individuals - is extraordinary. Disease management through probiotic application offers a welfare-positive conservation tool.

What You Can Do

Support amphibian disease research and captive breeding conservation programs
Learn about biosecurity practices for preventing chytrid spread when visiting wetland habitats
Donate to amphibian conservation programs developing disease management tools
Advocate for strong biosecurity controls on amphibian trade to prevent disease spread