Common name: Rough-skinned Newt
available through www.itis.gov
Hydrologic Unit Codes (HUCs) Explained
Puerto Rico &
Interactive maps: Point Distribution Maps
Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Taricha granulosa are found here.
Table last updated 1/25/2022
† Populations may not be currently present.
Means of Introduction: Pet release.
Status: Established in Alaska and Washington.
Impact of Introduction: The impacts of this species are currently unknown, as no studies have been done to determine how it has affected ecosystems in the invaded range. The absence of data does not equate to lack of effects. It does, however, mean that research is required to evaluate effects before conclusions can be made.
References: (click for full references)
Behler, J.L., and F.W. King. 1979. The Audubon Society field guide to North American reptiles and amphibians. Alfred A Knopf, New York.
Crother, B.I. (chair). Committee on Standard and English and Scientific Names. 2008. Scientific and standard English names of amphibians and reptiles of North America north of Mexico, with comments regarding confidence in our understanding. Society for the Study of Amphibians and Reptiles Herpetological Circular. No. 37. iii + 86p.
Miller, A. 2005. Poisonous newts establish beachhead in Southeast city. Anchorage Daily News. June 11, 2005.
Denise R. Gregoire, and Robert S. Powell
Revision Date: 8/17/2015
Denise R. Gregoire, and Robert S. Powell, 2022, Taricha granulosa (Skilton, 1849): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=159, Revision Date: 8/17/2015, Access Date: 1/25/2022
This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.