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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Ambystoma mavortium
Western Tiger Salamander
Yellowstone National Park
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Common

Scientific Name with Authority:		Ambystoma mavortium Baird, 1850
Park Preferred Common Name(s):		Western Tiger Salamander
Park Synonyms:		Ambystoma tigrinum melanostictum, Ambystoma mavortium melanostictum

Taxonomic Hierarchy:		Kingdom Animalia, Phylum Chordata, Subphylum Vertebrata, Order Caudata, Family Ambystomatidae, Genus Ambystoma, Species Ambystoma mavortium


Seasonality Tags:
Breeder


Threatened/Endangered Status:
State Species of Concern Status:		ID: Protected Nongame; WY: NSS4(Bc), SOPC
Ozone-sensitive Status:
NatureServe Global Rank:		G5
NatureServe State Rank:		ID: S4; MT: S5; WY: S4
Evidence:		11 Observations, 2 Vouchers, 1 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Bighorn Canyon National Recreation Area	Coronado National Memorial
Fort Bowie National Historic Site	Grand Teton National Park
Parashant National Monument


Last Modified Date:	9/9/2024

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 1/13/2026 6:51:17 AM

NatureServe Global Rank and State Rank

NatureServe. 2017. NatureServe Web Service. Arlington, VA. U.S.A. Available http://services.natureserve.org. Accessed: 12/4/2017. Updated quarterly.

This information is provided by NatureServe (www.natureserve.org) and its network of natural heritage member programs, a leading source of information about rare and endangered species, and threatened ecosystems.


		Species Profile		Page 1 of 1		1/13/2026 6:51:17 AM