White-footed Mouse (Peromyscus leucopus) Conservation Status Review
Review Date = 05/03/2018
ScoreG - 200,000-2,500,000 km squared (about 80,000-1,000,000 square miles)
Comment223,442 square Kilometers from Natural Heritage Program range maps
ScoreE - Relatively Stable (±25% change)
CommentHabitat is likely stable within +/- 25% since European settlement
ScoreU - Unknown. Short-term trend in population, range, area occupied, and number and condition of occurrences unknown.
CommentNo data on trends available
ScoreE - Localized substantial threat. Threat is moderate to severe for a small but significant proportion of the population or area.
CommentSpecies is dependent on deciduous forest. Emerald ash borer is a threat to green ash stands state wide and may result in loss of upland habitat
SeverityModerate - Major reduction of species population or long-term degradation or reduction of habitat in Montana, requiring 50-100 years for recovery.
CommentCould remove Ash habitat for > 100 years
ScopeLow - 5-20% of total population or area affected
CommentAsh only 5-20% of total habitat
ImmediacyLow - Threat is likely to be operational within 5-20 years.
CommentEmerald Ash Borer could impact ash within Montana in 20 years
ScoreC - Not Intrinsically Vulnerable. Species matures quickly, reproduces frequently, and/or has high fecundity such that populations recover quickly (< 5 years or 2 generations) from decreases in abundance; or species has high dispersal capability such that extirpated populations soon become reestablished through natural recolonization (unaided by humans).
CommentNot Intrinsically Vulnerable. Species matures quickly, reproduces frequently, and/or has a high fecundity such that populations recover quickly (< 5 years or 2 generations) from decreases in abundance. Species has good dispersal capabilities such that e
ScoreB - Narrow. Specialist. Specific habitat(s) or other abiotic and/or biotic factors (see above) are used or required by the Element, but these key requirements are common and within the generalized range of the species within the area of interest.
CommentAssociated only with riparian woodlands across eastern Montana
Raw Conservation Status Score
3.5 + 0 (geographic distribution) + 0 (environmental specificity) + 0 (long-term trend) + 0 (threats) = 3.5