Wildlife

Amphibian Chytrid Fungus and Disease Welfare

Chytridiomycosis, caused by the chytrid fungus Batrachochytrium dendrobatidis, has driven over 90 amphibian species to extinction and causes suffering in millions of individuals.

Key Facts

Chytridiomycosis has caused the decline or extinction of at least 200 amphibian species globally
The fungus disrupts skin function in amphibians, causing electrolyte imbalance and cardiac failure
Wild frog populations can collapse to near zero within months of disease introduction
Captive assurance colonies preserve genetic diversity for potentially dozens of species facing extinction

Welfare Considerations

Individual frogs dying from chytridiomycosis experience a prolonged death over days to weeks as the fungus progressively compromises their skin. Population-level collapses remove the welfare buffering of social behavior and habitat sharing. Supporting captive breeding programs and bioaugmentation research helps both conservation and the welfare of surviving individuals.

What You Can Do

Never release captive amphibians or used aquarium water into the wild
Support zoos and botanical gardens running amphibian assurance colonies
Advocate for biosecurity measures at wetland access points in disease zones
Donate to Amphibian Ark and similar programs preserving species diversity
Support research into probiotic treatments that protect wild frogs from chytrid