Score2-3 - Very Small to Small: Population size is imprecisely known but is believed to be <10,000 individuals.
CommentPopulation levels are poorly documented, though appear to be relatively small based upon available collection data.
Score1 - Peripheral, Disjunct or Sporadic Distribution in MT: Widespread species that is peripheral, disjunct or sporadically distributed within MT such that it occurs in <5% of the state (<7,500 sq. miles or the combined area of Beaverhead and Ravalli Counties) or is restricted to 4-5 sub-basins.
Area of Occupancy
Score3 - Very Low: Generally occurring in 3 or fewer Subwatersheds (6th Code HUC’s).
Score1-2 - Moderate to High.
CommentAlpine species whose habitat does not appear to be highly restricted, but may need specific geologic or edaphic conditions of limited distribution.
Score0-2 - Stable to Moderate Declines:
CommentPopulation trends are unknown, though habitat appears to be stable. Decreases in snowpack may lead to downward trends.
Score0-1 - Low to Medium.
CommentHabitat is generally remote, eliminating most potential threats.
Score1 - Moderate Vulnerability: Specific biological attributes, unusual life history characteristics or limited reproductive potential makes the species susceptible to extirpation from stochastic events or other adverse impacts to its habitat and slow to recover.
Raw Conservation Status Score
8 to 13 total points scored out of a possible 19.