New York mammals

Southern Red-backed Vole in New York

Clethrionomys gapperi

Native to New York S5 Secure in New York

Not listed as nonindigenous in New York by USGS NAS; native to its New York range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

Southern Red-backed Vole in New York, by the numbers

Occasional in New York 63rd most recorded of 102 mammals logged in New York

504 occurrence records

Records from 2000–2026.

504 total records count every New York occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 490 records with a full observation date.

When to look for the Southern Red-backed Vole in New York

Most sightings fall in June to August.

490 New York occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly New York records (table)
MonthRecords
January9
February7
March4
April24
May46
June54
July84
August84
September46
October80
November37
December15

Monthly southern red-backed vole occurrence records (iNaturalist and GBIF) in New York, 2000–2026.

Seasonality

Year-round in New York, with recorded sightings peaking in June–August, with a smaller rise in October.

Occurrence map

Where Southern Red-backed Vole has been recorded in New York

300 records mapped · zoom and drag to explore

300 New York records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Windham Blackhead Range Wilderness 12
Hunter-West Kill Mountain Wilderness 9
Whiteface Mountain Ski Center 9
Indian Head Wilderness 8
Madawaska Flow - Quebec Brook Primitive Area 4
Slide Mountain Wilderness 3
Connecticut Hill Wildlife Management Area 3
Devil's Tombstone Campground 2

Protected places with the most southern red-backed vole sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in New York

CountyRecords
Ulster County 144
Essex County 98
Tompkins County 97
Greene County 51
Hamilton County 30
Jefferson County 20
Lewis County 18
Franklin County 14
Schuyler County 11
St. Lawrence County 5
Sullivan County 4
Oneida County 3
6 other counties 9

The complete county distribution, spread across 18 New York counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

New York’s occurrence record holds 504 southern red-backed vole records, every one of them a GBIF entry rather than an iNaturalist sighting. That split makes sense for a small, secretive forest-floor rodent that survey trapping turns up far more often than a chance photo does.

Wooded edges of the Montezuma and Iroquois marsh complex

The records cluster around Montezuma and Iroquois National Wildlife Refuges, two of the Great Lakes plain’s biggest marsh systems, which at first glance looks like odd habitat for a species that needs shaded, moss-covered forest floor. The fit is really at the margins: this vole depends on shaded ground near a bog, stream, or other wet edge, and the wooded swamp buffers that ring both refuges’ open marshes supply exactly that combination of moisture and cover. The open wetland itself isn’t the habitat; the damp woodlot around it is.

The state’s real stronghold sits higher up

Nationally this species belongs to cool conifer and mixed forest, the kind that covers New England, the Appalachians, and the northern Rockies, and in New York that description points squarely at the Adirondacks and the Catskills rather than the lake-plain refuges where records happen to concentrate. Reporting effort, not habitat quality, likely explains the gap; a moss-floored spruce-hardwood stand in either mountain range should suit this vole just as well as anywhere it’s actually been documented.

Status in New York

NatureServe ranks the southern red-backed vole S5, secure, and it’s native to New York; USGS NAS doesn’t list it as an introduced species in the state.

Occurrence data from iNaturalist and GBIF.

More mammals in New York in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"