Abundance: 0.04 to 75.48% (median 4.94%)

Latitudinal range: 19.4° to 68.6°

Habitats: (137), Mediterranean woodland (2), boreal forest/taiga (11), desert/xeric shrubland (2), temperate broadleaf/mixed forest (22), temperate coniferous forest (4), temperate savanna (5), temperate wetland (2), tropical/subtropical coniferous forest (1), tundra (2)

Found in 188 samples

Canada: Delta Waterfowl Research Station, Kluane Lake, Gogama, Churchill (1952), Birds Hill (Plot 1, 1979), Prince Albert Model Forest, Bald Range (old growth), Old Crow River Loc. 11A (square S30E120), Charlie Lake Cave (Zone IV), Keffer (Midden 57, screened), Keffer (Midden 57, floated), Pender Canal Site (trench), Irving-Johnston, Caverne de la Mine (lower infill), Caverne de la Mine (upper infill), LaBiche River Valley

China: Guanyinshan Nature Reserve, Dabeigou

Finland: Pallasjårvi

France: Boult-aux-Bois (2010), Pontarlier, Massereau, Coudoulous I (Faunal Unit II), Coudoulous I (Faunal Unit III), Coudoulous I (Faunal Units IV and V), Coudoulous I (Faunal Unit VI), Coudoulous I (Faunal Unit VII), Romain-la-Roche, Lazaret (C II supérieur UA 13-17)

Germany: Ahltener Wald (month 6), Grafrath, Kettig

Hungary: Gemenc

Iraq: Palegawra Cave

Israel: Qesem Cave (Concentration 1), Qesem Cave (Concentration 2), Tel Ro'im West (Late PPNB), Marj Rabba, Revadim Quarry, Revadim Quarry Area B

Italy: Monticchie Nature Reserve (woodland), Castagnone, Rifreddo, Caverna degli Orsi (sondage A, Unit 10), Caverna degli Orsi (sondage A, Unit 10.1), Caverna degli Orsi (sondage A, Unit 10.2), Caverna degli Orsi (sondage A, Unit 11.1), Caverna degli Orsi (sondage A, Unit 11.2), Cava Muracci, San Teodoro Cave (Unit B-I), San Teodoro Cave (Unit B-II), Poggetti Vecchi, Monte Argentario

Japan: Matsugae

Kazakhstan: Pavlodar

Mexico: Cerro Potosí (Quadrat C), El Zurdo, Cerro Portezuelo

Montenegro: Trlica (Bed 5)

North Korea: Chongphadae Cave

Norway: Angedalen (spring), Angedalen (fall)

Poland: Zabia Cave (Layer 21), Borsuka Cave (Layer VII), Borsuka Cave (Layer VI), Borsuka Cave (Layer II), Zabia Cave (Layer 19), Zabia Cave (Layer 15), Zabia Cave (Layer 13), Zabia Cave (Layer 12), Zabia Cave (Layer 10)

Russia: Kuznetsovka, Svetly (layer 5), Malaya Gomsel'ga, Karasuk, Traktorosad No. 4 (garden), Traktorosad No. 4 (adjacent biotopes), Znamenskiy, Chusovoy, Bol'shoj Naryn (Paleosol Layers), Mezmaiskaya Cave (Layer 2A), Mezmaiskaya Cave (Layer 2B), Mezmaiskaya Cave (Layer 3), Cheremukhovo-1 (Bed 2), Cheremukhovo-1 (Bed 3), Cheremukhovo-1 (Bed 4), Cheremukhovo-1 (Bed 5), Cheremukhovo-1 (Bed 7), Khayrgas Cave - Layer 4 (1998–1999 pit), Khayrgas Cave - Layer 6 (1998–1999 pit), Novokhopersk-1, Novokhopersk-2, Chernyshevskaya-III Cave (layer 3), Mezmaiskaya Cave (Layer 2)

Spain: Sima del Elefante (TE19), Sima del Elefante (TE18), Cueva Millan (Nivel 8I-1a), Huéscar 1, El Cierro Cave (Level C/D), El Cierro Cave (Level D), Punta Lucero III (Level F)

Syria: Yahmool Agricultural Research Station

Turkey: Dicle University Campus, Golbasi

Ukraine: Grot Skeliastyi (III-3B), Grot Skeliastyi (III-3), Grot Skeliastyi (III-3A), Grot Skeliastyi (III-3-x), Grot Skeliastyi (III-1)

United Kingdom: Gorham's Cave (Level III), Gorham's Cave (Level IV)

United States: North of Stillwater (heavily grazed grassland, March), Trelease Woods (autumn 1938, plot UU), Seymour (1939, Plot A), Sierra National Forest (pitfall traps), H. J. Andrews Experimental Forest, Elkol-Sorenson Mine (1980), Elkol-Sorenson Mine (1981), Fort Necessity National Battlefield, Agiak Lake, North of Madison, Toolik Lake, Upper Susitna River Basin, Memphis, Glenn Dale, Patuxent Wildlife Research Refuge, Durham County, MacIntyre Development (forest habitats), Grand Marais, Kemper County, Suffolk, Hopland Research and Extension Center (chaparral), Hopland Research and Extension Center (woodland-grass), Ardis, Zesch Cave, Crystal Ball Cave, Welsh Cave, Silver Creek, Vess Cave, Papago Springs Cave, Haystack Cave (upper levels), Haystack Cave (lower levels), Harrodsburg Crevice, Ripplemead, Bat Cave, King Leo Pit Cave, CA-SLO-585 (Locus 6A, Early-Middle Holocene), Bluegrass (macro), Bluegrass (micro), Dust Cave (Zones T and U), North Creek Shelter (Paleoarchaic), North Creek Shelter (Early Archaic), Hulme Site, McIntosh, Taddlock, Watson Brake (6.4 mm fraction), Mosquito Willie, Mykut Rockshelter, Dead Indian Creek, Itasca Bison Site, Guard, Cole Gravel Pit, Scovill, Camels Back Cave (Stratum I), Pacific City, Jones, Hosterman's Pit, Prairie Creek (Zone D), Robinson Cave, Meyer Cave, Bootlegger Sink, Prairie Creek (Zone C), Prairie Creek (Zone B), Kathy's Pit, Mescal Cave, Pintwater Cave (Unit 3, level 8), Sunshine Locality (Unit C), Sunshine Locality (Unit D), Sunshine Locality (Unit E), Smith Creek Canyon (Reddish-brown Silt), Schulze Cave (layer C1), Schulze Cave (layer C2), New Paris Sinkhole No. 4, Natural Chimneys, Box Elder Creek, Marmes Rockshelter (Harrison horizon), Marmes Rockshelter (Marmes horizon), Marmes Rockshelter (A6–16 horizon)

See also Microtus agrestis, Microtus arvalidens, Microtus arvalinus, Microtus arvalis, Microtus arvalis-agrestis, Microtus arvaloides, Microtus atapuerquensis, Microtus brandtioides, Microtus brecciensis, Microtus cabrerae, Microtus californicus, Microtus chrotorrhinus, Microtus deucalion, Microtus duodecimcostatus, Microtus epiratticepoides, Microtus ex gr. huescarensis-brecciensis, Microtus gerbii, Microtus gr. multiplex-subterraneus, Microtus gregaloides, Microtus guentheri, Microtus hintoni, Microtus lavernedii, Microtus longicaudus, Microtus malei, Microtus mexicanus, Microtus miurus, Microtus montanus, Microtus multiplex, Microtus mystacinus, Microtus nutiensis, Microtus ochrogaster, Microtus oregoni, Microtus pennsylvanicus, Microtus pinetorum, Microtus ruffoi, Microtus savii, Microtus socialis, Microtus sp., Microtus spp., Microtus subterraneus, Microtus xanthognathus