Nevada’s Great Basin pocket mouse ranks 55th out of 144 mammals tracked here, an occasional presence built more on quiet burrows than on any real scarcity.
Sagebrush basins at the right elevation
Nationally, this species clusters most tightly between about 5,200 and 5,900 feet, the shrub-steppe band where sagebrush and shadscale replace both low desert and mountain forest. Nevada’s own valleys sit right in that zone. Ruby Lake National Wildlife Refuge, in Ruby Valley at roughly that same elevation, offers the loose, diggable soil this mouse needs for the burrow systems it depends on for shelter and for stashing seeds. Utah holds the great majority of the species’ documented range, so Nevada’s records reflect a real, secondary share of the same Great Basin ground rather than an isolated outlier.
Sealed underground through the cold months
Records climb through late spring, peak in July, and fall away almost to nothing by November, tracking a mouse that plugs its own burrow entrance from the inside during the day and drops into intermittent torpor once the surface stops offering anything worth eating. Seeds gathered and cached through the warm months, mostly from sagebrush and saltbush, carry it through that stretch underground. It never needs to drink, pulling enough water from dry seed and concentrating its urine so efficiently that free water is optional rather than required.
Status in Nevada
Nevada lists the Great Basin pocket mouse as native to its mapped range, though NatureServe hasn’t assigned the state a distinct subnational rank here. Globally the IUCN rates it Least Concern, and nothing about its record pattern here raises any concern.
Full species profile
