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Subterranean biodiversity of North America and around the globe

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Cave Biology Data Portal
Subterranean biodiversity of North America and around the globe
AnimaliaChordataMammaliaCarnivoraMustelidaeMustela

Least Weasel
Mustela nivalis Linnaeus, 1766

Taxonomy

Kingdom Animalia
Phylum Chordata
Class Mammalia
Order Carnivora
Family Mustelidae
Genus Mustela
Species Mustela nivalis Linnaeus, 1766

Description

Diagnostic characters

Ecological class
Trogloxene
Realm
Terrestrial

Distribution

Range

Counties

County-level records have not been compiled for this taxon. Distribution is recorded at state and karst-region level.

Conservation and management

IUCN Red List

LC Least Concern

EXEWCRENVUNTLC▲

Assessed in 2019.

NatureServe

G5 Secure

G1G2G3G4G5▲

National ranks

Canada
N5 Secure
United States
N5 Secure

Subnational ranks

British Columbia
S4 Apparently Secure
Alberta
S5 Secure
Yukon
S4 Apparently Secure
Newfoundland and Labrador
S2 Imperiled
Saskatchewan
S5 Secure
Northwest Territories
S5 Secure
Nunavut
S5 Secure
Manitoba
S3 Vulnerable
Quebec
S2 Imperiled
Ontario
SU Unrankable
North Carolina
S2 Imperiled
Indiana
S2 Imperiled
Ohio
SNR Unranked
Virginia
S3 Vulnerable
Illinois
S3 Vulnerable
Wisconsin
S4 Apparently Secure
Nebraska
S5 Secure
Maryland
S2 Imperiled
Michigan
S5 Secure
North Dakota
S4 Apparently Secure
Montana
S4 Apparently Secure
Georgia
S1 Critically Imperiled
Alaska
S4 Apparently Secure
Minnesota
S3 Vulnerable
Iowa
S3 Vulnerable
South Carolina
S2 Imperiled
Tennessee
S2 Imperiled
Wyoming
S1 Critically Imperiled
Missouri
S3 Vulnerable
New York
S1 Critically Imperiled
West Virginia
S3 Vulnerable
Kansas
S4 Apparently Secure
Pennsylvania
S5 Secure
South Dakota
S5 Secure
Kentucky
S2 Imperiled

State and federal status

Not listed under the U.S. Endangered Species Act

How to cite this account

Mustela nivalis Linnaeus, 1766. Cave Biology Data Portal, account SP-2675. https://cavebiology.org/species/mustela-nivalis/ (accessed 7 September 2026).

Data sources and funding are listed in the Acknowledgments.

Spotted something wrong on this page? Report a correction. Accounts are compiled from many sources and corrections from people who know the group are the most useful email we get.

Cave Biology Data Portal

Species accounts, distributions, and conservation status for the subterranean fauna of North America and around the globe, with resources for the cave and karst research community.

Text and data CC BY 4.0. Images all rights reserved unless stated.

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