Wild Endangered Amphibian Chytrid Fungus Crisis

Batrachochytrium dendrobatidis has caused catastrophic global amphibian declines representing one of the worst wildlife disease events in history.

Key Facts

Chytrid fungus (Bd) has caused the decline or extinction of at least 90 amphibian species globally
Salamanders face a second chytrid threat from Batrachochytrium salamandrivorans (Bsal) spreading from Asia
Australia, Central America, and California have experienced catastrophic frog population crashes
Chytrid disrupts electrolyte balance through the amphibian skin causing cardiac arrest
Some populations are evolving resistance but evolution cannot keep pace with global spread
Captive assurance colonies for critically affected species preserve genetic material for potential reintroduction
Trade in amphibians for the pet trade has spread both Bd and Bsal globally

Welfare Considerations

Chytridiomycosis causes progressive electrolyte imbalance leading to cardiac failure - a systemic illness with distress as the body's fundamental chemical balance fails. Mass mortalities from Bd occur with individuals dying simultaneously over days. The welfare harm scales to potentially hundreds of species and billions of individual animals. Prevention of further spread through trade regulation and biosecurity is a direct welfare intervention at global scale.

What You Can Do

Support AmphibiaWeb, Amphibian Survival Alliance, and Durrell Wildlife Conservation Trust programs
Never release captive amphibians into the wild as this spreads disease to naive wild populations
Advocate for strict trade regulations preventing movement of potentially infected live amphibians
Support captive assurance colony programs preserving genetic diversity of Bd-affected species
Donate to research into Bd resistance breeding and biocontrol options
Learn about the amphibian crisis as the most significant wildlife disease event in recorded history