Aneides ferreus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Caudata Plethodontidae

Scientific Name: Aneides ferreus Cope, 1869
Common Name(s):
English Clouded Salamander
Taxonomic Source(s): Frost, D.R. 2014. Amphibian Species of the World: an Online Reference. Version 6 (27 January 2014). New York, USA. Available at: (Accessed: 27 January 2014).
Taxonomic Notes: Aneides vagrans was formerly included in this species.

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Geoffrey Hammerson
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Listed as Near Threatened because this species is in significant decline (but at a rate of less than 30% over ten years) because it is being adversely affected by widely practiced forest management practices, making the species close to qualifying for Vulnerable.

Geographic Range [top]

Range Description:This species has a patchy distribution from Del Norte and Siskiyou Counties, California, north through western Oregon to the Columbia River, USA (Jackman 1998).
Countries occurrence:
United States
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It is generally scarce, but locally common. However, current forest management practices are causing declines.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species inhabits moist coniferous forests (such as redwood, Douglas fir, western hemlock, and Port Orford cedar forests), in forest edges, forest clearings, talus, and burned-over areas. It is usually found under bark, in rotten logs, or in rock crevices, and it may aggregate in decayed logs in summer. The downed logs that it inhabits are large (greater than 50cm in diameter), and of mid-decay classes with sloughing bark (Thomas et al. 1993). This species also sometimes climbs high into trees. It lays its direct-developing eggs in cavities in rotten logs, in rock crevices, under bark, or among vegetation. Welsh and Wilson (1995) reported a clutch of Aneides ferreus or A.vagrans eggs that had been deposited in a fern clump at the base of a limb 30-40m above the ground in a large redwood tree.

Threats [top]

Major Threat(s): This species is threatened by intensive, short-rotation logging practices that result in increasing scarcity of coarse woody debris on the forest floor (Corn and Bury 1991). These salamanders may thrive initially after logging but then decline as stumps and logs decay and critical microhabitats are eliminated (Petranka 1998).

Conservation Actions [top]

Conservation Actions: Protection of mature and old growth forests is the most important long-term conservation need for this species. The trend for increasing scarcity of required coarse woody debris on the forest floor might be counteracted to some degree by existing and proposed forest management plans for the Spotted Owl (Strix occidentalis) and Marbled Murrelet (Brachyramphus marmoratus; Thomas et al. 1993).

Citation: Geoffrey Hammerson. 2004. Aneides ferreus. The IUCN Red List of Threatened Species 2004: e.T59115A11884041. . Downloaded on 27 May 2018.
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