Abundance: 0.02 to 56.54% (median 1.39%)

Latitudinal range: -24.5° to 60.4°

Habitats: (59), Mediterranean woodland (2), boreal forest/taiga (1), desert/xeric shrubland (1), montane grassland (1), temperate broadleaf/mixed forest (24), temperate coniferous forest (3), temperate savanna (1), tropical/subtropical coniferous forest (2), tropical/subtropical dry broadleaf forest (9), tropical/subtropical moist broadleaf forest (7), tropical/subtropical savanna (1)

Found in 111 samples

Brazil: Estação Biológica de Santa Lúcia (primary forest), Floresta Nacional Amapá (wet season), Purus Project, Reserva Ecológica Michelin (floresta), Abismo Iguatemi

Bulgaria: Osogovo Mountain (Natura 2000 study), Osogovo Mountain (intensive study), Osogovo Mountain (opportunistic study), Muselievo

Canada: Lindsay, Keffer (Midden 57, screened), Keffer (Midden 57, floated), Irving-Johnston, Caverne de la Mine (upper infill), Roussillon, Québec

China: Shennongjia National Nature Reserve, Kanas National Nature Reserve

Colombia: Parque Nacional Natural Farallones de Cali (scrub)

Denmark: Smakkerup Huse

Ecuador: Chorongo, Challuahamba

France: Dieupentale, Coudoulous I (Faunal Unit II), Coudoulous I (Faunal Units IV and V)

Germany: Ahltener Wald (month 6), Herrlingen 7, Ehrenstein 7, Lautern 2

Israel: Qesem Cave (Concentration 1), Qesem Cave (Concentration 2), Motza (Early PPNB), Motza (Middle PPNB)

Italy: Western Trento Province (2012), Castagnone

Japan: Fujiyoshida City

Lebanon: Jabal Moussa Biosphere Reserve (spring), Moghr el-Ahwal Cave 3 (Phases F & E)

Mexico: La Reserva Natural Sierra Nanchititla, Estación Científica Las Joyas, Tolistoque (dry season), Tolistoque (rainy season), Abra-Tanchipa Biosphere Reserve (survey 1), Ajos, Madera West, Pico de Orizaba National Park, Schroeder Site (Structure 1), Xalapa, Sierra Region (secondary forest), Santa Marta rock-shelter

Panama: Ecoparque Panama

Peru: Reserva Cuzco Amazónico (1989 snap traps), Los Amigos Conservation Concession (2006)

Poland: Zabia Cave (Layer 21), Borsuka Cave (Layer II), Zabia Cave (Layer 15)

Russia: Cheremukhovo-1 (Bed 2), Cheremukhovo-1 (Bed 3), Cheremukhovo-1 (Bed 4), Cheremukhovo-1 (Bed 5), Khayrgas Cave - Layer 4 (1998–1999 pit)

Turkey: Marmaris, Ciglikara Nature Reserve

United States: Memphis, Salt Pond Mountain, Haw River, Rocky River, Richlands, Fayette County, North Fork of the Cache la Poudre River, Raleigh-Durham, North of the Michigamme Reservoir, Longview Lake and Warrensburg, Savannah River Site (S1), Savannah River Site (S2), The Wilds, Daniel Boone Field Station (agricultural), Daniel Boone Field Station (riparian), Blue Grass Army Depot, Ardis, King Leo Pit Cave, Bluegrass (macro), Bluegrass (micro), Dust Cave (Zones T and U), McKinley Site (Zone B), Angel Site (Subdivision W10D), Taddlock, Steck, McLelland, Croley-Evans, Watson Brake (6.4 mm fraction), Watson Brake (3.2 mm fraction), Mykut Rockshelter, Black Cat Cave (interior), Black Cat Cave (Test Unit 1), Hobson Site, Guard, Cole Gravel Pit, Sachsen Cave Shelter, Scovill, Robinson Cave, Meyer Cave, Bootlegger Sink, Prairie Creek (Zone C), Prairie Creek (Zone B), Mescal Cave, Natural Chimneys, Student Agricultural Gardens, Trail of Tears State Forest, Smithsonian Conservation Biology Institute (logs, feature), West of US 287, Granite Cave

See also Sciurus aberti, Sciurus aestuans, Sciurus anomalus, Sciurus arizonensis, Sciurus aureogaster, Sciurus carolinensis, Sciurus colliaei, Sciurus giganteus, Sciurus granatensis, Sciurus ignitus, Sciurus igniventris, Sciurus lis, Sciurus niger, Sciurus oculatus, Sciurus solitarius, Sciurus sp., Sciurus spadiceus, Sciurus spp., Sciurus vulgaris, Sciurus warthae