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Rocky Mountain Region

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Species Conservation Program: Species Evaluation Index — Mammals

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Species occurrence on National Forest System units as portrayed by these tables is based on limited information available to evaluators at the time of preparation of species evaluations. Because these evaluations were intended to be sketches and not exhaustive, and because distribution information for many species is inadequate, the accuracy of these location tables cannot be ensured. Therefore, users must assume the responsibility of verifying that this information is accurate for individual forests.

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Recommendation: R2 Sensitive Species (SS)

Common Name Scientific Name 
American marten
(Black Hills population)
Martes americana
black-tailed prairie dog Cynomys ludovicianus
common hog-nosed skunk Conepatus leuconotus
desert bighorn sheep Ovis canadensis nelsoni
fringed myotis Myotis thysanodes
grizzly bear Ursus arctos horribilis
Gunnison's prairie dog Cynomys gunnisoni
kit fox Vulpes macrotis
New Mexico meadow jumping mouse Zapus hudsonius luteus
Preble's meadow jumping mouse (WY SPR)
*No evaluation was done. See rationale.
Zapus hudsonius preblei (WY SPR)
pygmy shrew
(Rocky Mountain population)
Sorex hoyi
river otter Lontra canadensis (Lutra canadensis)
Rocky Mountain bighorn sheep Ovis canadensis canadensis
spotted bat Euderma maculatum
swift fox Vulpes velox
Townsend's big-eared bat #1 | #2 Corynorhinus townsendii
water vole
(Bighorn Moutain population)
Microtus richardsoni
white-tailed prairie dog Cynomys leucurus
wolverine Gulo gulo
Wyoming pocket gopher Thomomys clusius

Recommendation: Not R2 Sensitive Species, But Should Be Considered For Other Emphasis Species Lists

Common Name Scientific Name 
Abert's squirrel Sciurus aberti
Allen's thirteen-lined ground squirrel Spermophilus tridecemlineatus alleni
American pika Ochotona princeps
bear lodge meadow jumping mouse Zapus hudsonius campestris
Bighorn Mountain pika #1 | #2 Ochotona princeps obscura
cliff chipmunk Tamias dorsalis
northern myotis Myotis septentrionalis
pallid bat Antrozous pallidus
plains pocket mouse subspecies Perognathus flavescens relictus
plains spotted skunk Spilogale putorius interrupta
ringtail Bassariscus astutus
Rocky Mountain elk Cervus elaphus nelsoni
Wet Mountains marmot Marmota flaviventris notioros
Yuma myotis Myotis yumanensis

Recommendation: Not R2 Sensitive Species and Not of Concern

Common Name Scientific Name 
Allan's big-eared bat Idionycteris phyllotis
American bison Bos bison
American black bear Ursus americanus
Arctic shrew Sorex arcticus
Bailey's eastern woodrat Neotoma floridana baileyi
big free-tailed bat Nyctinomops macrotis
Botta's pocket gopher subspecies Thomomys bottae rubidus
Brazilian free-tailed bat Tadarida brasiliensis
dwarf shrew Sorex nanus
eastern chipmunk Tamias striatus
eastern cottontail Sylvilagus floridanus
eastern mole Scalopus aquaticus
fisher Martes pennanti
gray fox Urocyon cinereoargenteus
Hayden's shrew Sorex haydeni
hispid pocket mouse Chaetodipus hispidus
hoary bat Lasiurus cinereus
Idaho pocket gopher Thomomys idahoensis
least shrew Cryptotis parva
least weasel Mustela nivalis
long-eared myotis Myotis evotis
long-legged myotis Myotis volans
Merriam's shrew Sorex merriami
northern flying squirrel Glaucomys sabrinus
northern pocket gopher subspecies Thomomys talpoides agrestis
pinon mouse Peromyscus truei
plains harvest mouse Reithrodontomys montanus
plains pocket mouse Perognathus flavescens
Preble's shrew Sorex preblei
puma Puma concolor
pygmy rabbit Brachylagus idahoensis
sagebrush vole Lemmiscus curtatus
silky pocket mouse Perognathus flavus
southern bog lemming Synaptomys cooperi
spotted ground squirrel Spermophilus spilosoma
water shrew Sorex palustris
western small-footed myotis Myotis ciliolabrum
western spotted skunk Spilogale gracilis
white-footed mouse Peromyscus leucopus


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