Wyoming Ecological Services
Mountain-Prairie Region

Federally Listed, Proposed & Candidate Species | Species of Concern | Migratory Birds | All Species By County



Federally Listed, Proposed and Candidate Species


Preble's Meadow Jumping Mouse
(Zapus hudsonius preblei)

Status: Threatened

Preble's Meadow Jumping MousePhoto Credit: US FWS


Preble's Meadow Jumping Mouse Section 7 Range

Section 7 Range Symbol

Wyoming Section 7 Range
Preble's Meadow Jumping Mouse

Potential Distribution in Wyoming

For Species Lists, please use the IPaC System

Section 7 Range

Under Section 7 of the Endangered Species Act of 1973, Federal agencies, or project proponents whose actions have a Federal nexus (e.g., Federal funding, permit, or lease), must consult with the U. S. Fish and Wildlife Service if their actions “may affect” listed species (endangered, threatened, proposed, candidate) or their habitat.  Section 7 species ranges identify those areas on the landscape where agencies or proponents should consider potential effects, both direct and indirect, to the species and their habitat.  These Section 7 species ranges typically encompass larger areas than specific locations where listed species are known to occur.  Project proponents are encouraged to refer to the Service’s Information, Planning, and Conservation System (IPAC) website at http://ecos.fws.gov/ipac/ or to contact the FWS Wyoming Ecological Services Office for additional information http://www.fws.gov/wyominges/ :307-772-2374.  (Section 7 Range boundaries based on the best available data at time of development.  Section 7 Ranges will be updated as new information becomes available.)

Download Section 7 Range GIS Data or Section 7 Range Google Earth layers


Species Information

Federal listing status under the ESA for Preble’s meadow jumping mouse (Zapus hudsonius preblei) as a threatened species in Wyoming was reinstated on August 6, 2011 (76 FR 47490).  Preble’s meadow jumping mouse is a small rodent in the Zapodidae family and is one of 12 recognized subspecies of Z. hudsonius, the meadow jumping mouse.  This species has a body length of 3 to 4 inches, a bicolored tail 4 to 6 inches in length, large hind feet adapted for jumping, and a distinct dark stripe down the middle of its back bordered on either side by gray to orange-brown fur.  Their diet consists of seeds, fruits, fungi, and insects.  Preble’s meadow jumping mouse is primarily nocturnal or crepuscular, but has been observed during daylight.  Hibernation occurs from October to May in small burrows the mouse excavates several centimeters underground. 

Preble’s meadow jumping mouse exhibits a preference for lush vegetation along watercourses or herbaceous understories in wooded areas near water.  The mouse occurs in low undergrowth consisting of grasses or forbs; in wet meadows and riparian corridors; or areas where tall shrubs and low trees provide adequate cover.  The species uses upland habitats as far as 330 feet beyond the 100-year floodplain.  In Wyoming, Preble’s meadow jumping mouse has been documented in Albany, Laramie, Platte and Converse counties, and may occur in Goshen County.  If a proposed project will disturb suitable habitat within any of these five counties, surveys should be conducted prior to any action.  Due to the difficulty in identifying the Preble’s meadow jumping mouse, surveys should be conducted by knowledgeable biologists trained in conducting these surveys.

Additional Information and Recent Actions

Last updated: March 21, 2014