What's happened
Wyoming’s statewide wolf count has fallen to 253 wolves with 14 breeding pairs, marking the lowest population in two decades. Biologists say canine distemper is the primary driver, with pup survival severely affected in the northwestern trophy-game zone.
What's behind the headline?
Analysis
- Distemper is the principal factor in the decline, with pups showing a survival rate around 37% in 2025.
- The statewide cap has been reduced to 22 wolves in the Greater Yellowstone zone for 2026, tightening management after last year’s harvests.
- The data suggest an ongoing recovery challenge as disease and limited breeding pairs constrain growth.
- This will likely influence future hunting quotas and conservation strategies in Wyoming and neighboring states.
Key questions
- How will biologists adjust monitoring methods given the distemper impact?
- Will breweries of wolf management shift toward non-lethal control more broadly in the region?
- What are the wider ecological consequences if pup survival remains low?
How we got here
Wyoming’s wolf monitoring has tracked a steady decline since distemper outbreaks began affecting pups in 2025. In the Greater Yellowstone Ecosystem, a section classed as trophy game, the hunting season and state regulations have influenced mortality figures. Biologists attribute the drop to a canine distemper outbreak and note the 2025 population reached 253 wolves and 14 breeding pairs.
Our analysis
AP News reports from May 12–15, 2026 provide detailed counts and disease context; WyoFile contributes interpretation of the distemper impact and habitat zone classifications.
Go deeper
- How will the population trend influence future hunting quotas?
- Is there a broader disease management plan emerging for wolves?
- What does this mean for the Greater Yellowstone Ecosystem’s ecosystem balance?
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