Wild Saiga Antelope: Mass Die-Offs and Welfare Crises on the Central Asian Steppe

Saiga antelopes experienced a catastrophic mass mortality event in 2015, when over 200,000 animals died within days — one of the worst wildlife welfare disasters in recorded history.

Key Facts

In May 2015, over 200,000 saiga — approximately 60% of the global population at the time — died within three weeks
The cause was Pasteurella multocida bacterial infection, triggered by unusually warm and humid conditions that activated normally harmless gut bacteria
Saiga are classified as Critically Endangered; populations had already declined 95%+ from Soviet-era hunting
Females and calves were disproportionately killed in the 2015 event — devastating the reproductive future of populations
Saiga have distinctive inflatable noses that filter dust and warm cold air on the open steppe
Climate change is increasing the frequency of the warm, humid conditions that trigger Pasteurella activation

Welfare Considerations

The 2015 saiga mass mortality event represents one of the most acute wildlife welfare catastrophes in recent history. Death from Pasteurella multocida septicaemia causes progressive organ failure, with animals showing weakness, staggering, and distress over hours before death. The scale — hundreds of thousands of animals dying simultaneously across the steppe — created a welfare emergency impossible to address through any intervention. Climate change projections suggest such events will become more frequent and severe, meaning the saiga faces a welfare crisis that cannot be solved without addressing the root cause of atmospheric warming. Population monitoring, veterinary response capacity, and habitat protection support welfare and conservation simultaneously.

What You Can Do

Support Saiga Conservation Alliance for monitoring, research, and veterinary response capacity
Advocate for international climate agreements that protect steppe ecosystem stability
Report any saiga horn products encountered — illegal trade remains a persistent threat
Donate to emergency wildlife response funds that can be deployed during mass mortality events