Nevada mammals

Trowbridge's Shrew in Nevada

Sorex trowbridgii

Native to Nevada S2 Imperiled in Nevada

Not listed as nonindigenous in Nevada by USGS NAS; native to its Nevada 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.

Trowbridge's shrew beside a penny for scale, holding food in its mouthAI-generated image: Trowbridge's shrew foraging in deep forest leaf litter. No additional license-safe photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracyAI-generated image: Trowbridge's shrew climbing a mossy decaying log. No additional license-safe photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy
Photo: bob-dodge · CC BY 4.0Trowbridge's shrew beside a penny for scale, holding food in its mouthAI-generated image No additional license-safe photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracyTrowbridge's shrew foraging in deep forest leaf litterAI-generated image No additional license-safe photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracyTrowbridge's shrew climbing a mossy decaying log

Trowbridge's Shrew in Nevada, by the numbers

Occasional in Nevada 92nd most recorded of 142 mammals logged in Nevada

17 occurrence records

17 total records count every Nevada occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 15; the monthly chart covers the 12 records with a full observation date.

When to look for the Trowbridge's Shrew in Nevada

Most sightings fall in August to September.

12 Nevada occurrence records (iNaturalist and GBIF) by month of year. Shows when the species is recorded, not a guarantee of presence. Based on a small number of dated records; the seasonal pattern may not be representative.

Monthly Nevada records (table)
MonthRecords
January0
February0
March2
April1
May1
June1
July1
August3
September3
October0
November0
December0

Monthly trowbridge's shrew occurrence records (iNaturalist and GBIF) in Nevada.

Seasonality

Year-round in Nevada, with recorded sightings peaking in August–September, with a smaller rise in March.

Occurrence map

Where Trowbridge's Shrew has been recorded in Nevada

15 records mapped · zoom and drag to explore

15 Nevada records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Toiyabe National Forest 2

Protected places with the most trowbridge's shrew 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 Nevada

CountyRecords
Washoe County 10
Carson City County 2
Humboldt County 2
Douglas County 1
Other localities 2

The complete county distribution, spread across 4 Nevada counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Nevada records for the trowbridges shrew are anchored by Humboldt-Toiyabe National Forest and Great Basin National Park. They show where people have reported it, not how many animals live there.

The Nevada records bridge the state’s southern desert country and its higher central or northern ranges. That broad spread matters more than any single hotspot. The strongest reporting falls in summer, when Nevada’s high country is easiest to reach but low deserts are hottest. That may shape where observers submit records.

The file combines 0 research-grade iNaturalist records and 17 GBIF records. Those 17 records measure documented encounters, not Nevada’s population size. It’s native to Nevada. Nevada doesn’t specifically list it under the state’s conservation framework, and the IUCN lists it as Least Concern.

Occurrence data from iNaturalist and GBIF.

Trowbridge's shrew beside a penny for scale, holding food in its mouth
Full species profile Trowbridge's Shrew Sorex trowbridgii Size 6.8 cm2.7 in Weight 4 g0.1 oz Lifespan Up to 1.5 yr View the full profile

More mammals in Nevada 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"