Wild Saiga Antelope Welfare and Mass Die-offs

Saiga antelopes have experienced catastrophic mass mortality events linked to climate change, with entire populations dying within days from a normally harmless bacterium triggered by unusual weather conditions.

Key Facts

Saiga antelopes migrated across Eurasian steppes in herds once numbering millions before hunting decimated populations
In May 2015, over 200,000 saiga died within two weeks — 60% of the global population at the time
The die-off was caused by Pasteurella multocida bacteria that became virulent following unusual humidity and temperature
Climate change is increasing the frequency of the specific weather conditions that trigger bacterial virulence
Saiga populations had recovered from near-extinction caused by poaching for horns in the 1990s
Conservation programs had achieved significant recovery before the 2015 die-off catastrophically reversed gains
The IUCN classifies saiga as Critically Endangered following population crashes from multiple causes

Welfare Considerations

The 2015 saiga mass mortality event represents one of the most dramatic and rapidly developing wildlife welfare catastrophes on record. Animals that had been thriving began dying within hours, and the die-off killed calves alongside their mothers, leaving none of the population unaffected within the event area. The welfare harm — hemorrhagic pneumonia causing rapid deterioration and death — affected hundreds of thousands of individuals within days. The climate-change link means this type of event will become more frequent, threatening conservation gains repeatedly. Supporting programs that build saiga population resilience and monitor weather-pathogen trigger conditions enables earlier response to future mass mortality events.

What You Can Do

Support Saiga Conservation Alliance programs protecting remaining saiga populations across Central Asia
Advocate for climate action that reduces frequency of the weather conditions triggering bacterial die-offs
Donate to research developing early warning systems for mass mortality event prevention
Oppose saiga horn trade that historically drove near-extinction before die-off events began
Raise awareness about saiga as a uniquely vulnerable species facing multiple compounding threats