California newt - Taricha torosa
( Rathke, 1833 )

 

 

No Map Available

Warning: Undefined property: stdClass::$Photo1 in /var/www/vhosts/virtualzoo/classifications/display.php on line 584
No Photo Available No Map Available

Subspecies: Unknown
Est. World Population:

CITES Status: NOT LISTED
IUCN Status: Near Threatened
U.S. ESA Status: NOT LISTED

Body Length:
Tail Length:
Shoulder Height:
Weight:

Top Speed:
Jumping Ability: (Horizontal)

Life Span: in the Wild
Life Span: in Captivity

Sexual Maturity: (Females)
Sexual Maturity: (Males)
Litter Size:
Gestation Period:

Habitat:
This species inhabits a variety of habitats, including mountainous and rolling woodlands, grasslands, chaparral, and forest (Green et al. 2014). Breeding occurs in permanent or semi-permanent pools, ponds, and streams. This species reproduces by larval development. Eggs are attached to sticks, undersides of stones, or vegetation in flowing or non-flowing water; fast-moving streams and rivers are used more often in the Sierra Nevada foothills and in the southern California mountains than elsewhere in the range. The breeding season for this species is reported to span December-May (Stebbins 1951). This species exhibits behavioural plasticity to breed early when conditions are optimal, which could position them to respond well to droughts and other impacts of global warming (Wilcox et al. 2017).

Range:
This species occurs in the Coast Ranges of California, ranging from Round Valley south to Boulder Creek in the Peninsular Ranges of extreme southwestern California. It is also found on the western side of the southern Sierra Nevada from the Kaweah River south to the Kern River (Green et al. 2014). Taricha sierrae hybridizes with T. torosa in the southern Sierra Nevada portion of its range (Kaweah River area) (Kuchta 2007). This species is found at elevations ranging from sea level to 2,000 m asl (Green et al. 2014).

Conservation:
Conservation Actions In-Place
This species occurs in several protected areas. Due to habitat loss, this population is listed as a Species of Special Concern by California Department of Fish and Wildlife. The U.S. Geological Service (USGS) is monitoring for Bsal across this species range (L. Kats and G. Bucciarelli pers. comm. October 2020).

In an effort to prevent the introduction of Bsal into the US, an Interim Rule of the Lacey Act has been enacted that bans the importation of 201 species of salamanders (USFWS 2016). Additionally, a temporary voluntary trade moratorium of imports of Asian salamander species that are known to carry the disease until such time as effective testing and treatment regimens can be developed and distributed has been recommended to all exporters, shippers, sellers and buyers by the Pet Industry Joint Advisory Council (PIJAC). A North America Bsal Task Force has also been created, with working groups designed to address a variety of disease prevention and mitigation goals (North America Bsal Task Force 2021).

Conservation Needed
Continued and strengthened management of protected area(s) where this species occurs, and expanded protection of suitable habitat elsewhere in its range is needed. The prevention of Bsal from entering United States should be a priority (Bower et al. 2017). Continued and strengthened efforts to remove invasive crayfish (Procambarus clarkii) is recommended to further prevent local extirpation (Milligan et al. 2017). 

Research Needed
Further research on this species' distribution, population size and trends is recommended. There is a need for monitoring the population status of this species given the ongoing threats, specifically within the southern portion of this species' range.

Questions? Comments? Suggestions? Additions?
Please contact The Virtual Zoo Staff


You are visitor count here since 21 May 2013

page design & content copyright © 2025 Andrew S. Harris

return to virtualzoo.org home

This page reprinted from http://www.virtualzoo.org. Copyright © 2025 Andrew S. Harris.

The Virtual Zoo, San Jose, CA 95125, USA