Mountain Whitefish

Prosopium williamsoni

Predicted Distribution Loss by End-of-Century:
33%
**LOW CERTAINTY**

MT Conservation Rank:
S4 (Apparently Secure)
WY Conservation Rank:
S3 (Vulnerable)

Synopsis: We predict Mountain Whitefish to be highly vulnerable to climate change, but our follow-up study examining species trends found little evidence for this. It is possible that this species is able to shift its distribution to cooler, upstream reaches as downstream reaches become warm. However, Mountain Whitefish are also especially susceptible to warming-triggered disease outbreaks. Overall, the climate vulnerability of Mountain Whitefish is not well understood.