Pronghorn Drought Adaptation: Climate Welfare for Grassland Antelope

Drought increasingly threatens pronghorn populations as climate change reduces water availability and changes grassland vegetation in their western US range.

Key Facts

Pronghorn are adapted to semi-arid environments and can obtain water from vegetation in many conditions
Severe drought reduces the water content of vegetation, forcing pronghorn to seek open water sources they would otherwise avoid
Drought reduces forage quality and quantity, affecting body condition particularly in pregnant and lactating does
Doe body condition at parturition is a primary determinant of fawn survival in the critical first weeks
Water developments (wildlife ponds, cattle tank access) can support pronghorn during drought but require maintenance
Drought years are associated with higher pronghorn mortality from predation as animals become weakened
Climate projections suggest increased drought frequency and severity in pronghorn range throughout the 21st century

Welfare Considerations

Drought welfare for pronghorn operates across the life cycle. Adult animals in poor drought-stressed condition experience weakness, reduced immune function, and increased vulnerability to predators. The most severe welfare impact is on fawns born to drought-stressed does - maternal malnutrition creates small, weak fawns with reduced survival capacity. The first weeks of life for fawns depend on milk quality and quantity that is directly limited by maternal nutrition. Drought-related mortality in fawns involves the slow deterioration of starvation and weakness. As climate change increases drought frequency, these welfare events will recur more often, with less recovery time between them.

What You Can Do

Support wildlife water development programs that maintain open water sources during drought periods
Advocate for climate action as the most fundamental intervention for pronghorn climate welfare
Donate to organizations managing and monitoring pronghorn populations during drought conditions
Support grazing management practices that leave adequate vegetation cover for pronghorn during drought
Engage with land managers about drought emergency plans for pronghorn and other sensitive wildlife
Learn about pronghorn conservation biology to engage meaningfully with management discussions