font settings and languages

Font Size: Large | Normal | Small
Font Face: Verdana | Geneva | Georgia
Languages:

Taricha torosa

(Coast Range Newt)

Interesting Facts

[ Back to top ]
 

Common Names

[ Back to top ]

Common Names in English:

california newt, Coast Range Newt, Sierra Newt

Description

[ Back to top ]

Physical Description

Species Taricha torosa

The California Newts (Taricha torosa) are large salamanders reaching total lengths almost up to 8 inches. They are characterized by warty skin that is not slimy, and are light brown to balck above with ayellow to orange belly. They bear a close resemblance to the Rough-skinned Newt (Taricha granulosa), but California Newts usually have a lighter dorsal color with less contrast between the ventral and dorsal colors on the side. A better character is the the lower eyelid which is light colored (relatively dark in the Rough-skinned Newt). California Newts also have larger eyes - seen from above the outline of the eye reaches the edge of the outline of the head , it does not in the Rough-skinned Newt.

California Newts are quite poisonous, as are all Newts of the genus Torosa, so it is not advised to handle these salamanders.If you do, wash your hands before touching your eyes or anything that you might put in your mouth .

Habitat

Found in a variety of habitats similar to those used by the Rough-skinned Newt, though in the Sierra Nevada and the mountains of southern California they also inhabit fast moving streams . California Newts also seem to prefer less humid habitats than the Rough-skinned Newts.

Ecology: Breeding occurs in ponds , reservoirs , and streams , and terrestrial individuals occupy various adjacent upland habitats such as grassland, woodland, and forest (Storer 1925, Petranka 1998, Stebbins 2003, Kuchta 2005). Eggs are attached to sticks , undersides of stones , or vegetation in flowing or nonflowing water; fast-moving streams and rivers are used more often in Sierra Nevada foothills and in southern California mountains than elsewhere in the range . (Ref. 309921).

List of Habitats:

Taxonomy

[ Back to top ]

Synonyms

Taricha torosa (Rathke in Eschscholtz, 1833) • Taricha torosa sierraeTaricha torosa sierrae (Twitty, 1942) • Triton torosa Rathke • Triturus sierrae Twitty

Notes

Name Status: Accepted Name .

Last scrutiny: 01-Sep-2009

Taricha sierrae formerly was recognized as a subspecies of Taricha torosa.

Phylogenetic analysis of mtDNA data (Tan and Wake 1995) revealed the following clusters in T. torosa: (1) northern Sierra Nevada (Shasta to Nevada counties); (2) central Sierra Nevada (El Dorado to Fresno counties); (3) southern Sierra Nevada (Tulare to Kern counties) (independently derived relative to 1 and 2, above); (4) southern coastal California (San Diego and Orange counties); (5) central coastal California (Los Angeles to central and northern California). This study and additional allozyme data (Kuchta and Tan 2006) provided the basis for a phylogeographical history of T. torosa. Among other things, the data are consistent in indicating that populations in the southern Sierra Nevada are more closely related to T. torosa torosa than to T. t. sierrae.

In the interests of taxonomic stability , Kuchta and Tan (2006) refrained from advocating changes in the taxonomic status of Taricha torosa torosa and Taricha torosa sierrae, pending completion and publication of ongoing studies.

Kuchta (2007) examined genetic and morphological variation in Taricha torosa and concluded that T. torosa and T. sierrae are distinct evolutionary lineages that should be recognized as distinct species.[1].

Similar Species

[ Back to top ]

Members of the genus Taricha

ZipcodeZoo has pages for 8 species and subspecies in this genus:

T. granulosa (Rough-Skin Newt) · T. granulosa granulosa (Rough-Skinned Newt) · T. granulosa mazamae (Crater Lake Newt) · T. rivularis (Western Red-Bellied Newt) · T. sierra (Sierra Newt) · T. torosa (Coast Range Newt) · T. torosa sierrae (California Newt) · T. torosa torosa (California Newt)

More Info

[ Back to top ]

Further Reading

[ Back to top ]

Notes

[ Back to top ]

Contributors

Data Sources

Accessed through GBIF Data Portal February 29, 2008:

Identifiers

Footnotes

  1. Geoffrey Hammerson 2008. Taricha torosa. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 05 February 2012. [back]
Last Revised: 7/14/2012