Overview
Distribution
Range Description
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Global Range: (5000-200,000 square km (about 2000-80,000 square miles)) Range includes the Blue Ridge physiographic province of southwestern North Carolina west of French Broad River, and immediately adjacent Tennessee; also northern Rabun County, Georgia, and Oconee, Pickens, Abbeville and Anderson counties, South Carolina (Highton 1983, Petranka 1998, Dodd 2004). Tennessee: Unicoi Mountains in Monroe and Polk counties and the Great Smoky Mountains in Sevier and Cocke counties (Redmond and Scott 1996). Elevational range extends as high as 1,550 meters (Petranka 1998).
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National Distribution
United States
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
Type of Residency: Year-round
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Physical Description
Size
Ecology
Habitat
Habitat and Ecology
Systems
- Terrestrial
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Comments: Birch-beech-hemlock forest with witch hazel, mountain laurel, and rhododendron understory; home range typically includes a retreat hole (Nishikawa 1990). Highest densities occur in mature, mesic hardwood forests (Petranka 1998). Terrestrial breeder.
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Migration
Non-Migrant: Yes. At least some populations of this species do not make significant seasonal migrations. Juvenile dispersal is not considered a migration.
Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: No. No populations of this species make annual migrations of over 200 km.
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Population Biology
Number of Occurrences
Note: For many non-migratory species, occurrences are roughly equivalent to populations.
Estimated Number of Occurrences: 21 - 300
Comments: This species is represented by a large number of occurrences (subpopulations) (Highton 1987). Estimated 5 or less extant sites in Georgia (R. MacBeth, pers. comm., 1997). Common in main portion of range in North Carolina (J. Petranka, pers. comm., 1997); not tracked by North Carolina Natural Heritage Program. Redmond and Scott (1996) mapped 21 collection localities in Tennessee.
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Global Abundance
100,000 - 1,000,000 individuals
Comments: Uncommon to locally common in higher elevations (Wilson 1995). Density of one Great Smoky Mountains population (reported as P. glutinosus) was 0.23 per square meter, based on mark-recapture estimates (Merchant 1972). In the Great Smokies, a 0.5-hour search in Spetember yielded 19 adults and juveniles, but usually only occasional individuals were found during intensive surveys (Dodd 2004). Total adult population size likely exceeds 100,000.
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General Ecology
Spring-summer home range in western North Carolina was 0.01-4.7 sq m (average 1 sq m or less); home range fixed and mostly separate from individuals of same sex or age (Nishikawa 1990).
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Conservation
Conservation Status
IUCN Red List Assessment
Red List Category
Red List Criteria
Version
Year Assessed
Assessor/s
Reviewer/s
Contributor/s
Justification
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National NatureServe Conservation Status
United States
Rounded National Status Rank: N4 - Apparently Secure
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NatureServe Conservation Status
Rounded Global Status Rank: G4 - Apparently Secure
Reasons: Small range in four southeastern states; formerly threatened by logging, now stable and unthreatened.
Intrinsic Vulnerability: Moderately vulnerable
Environmental Specificity: Moderate to broad.
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Trends
Population
Population Trend
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Global Short Term Trend: Relatively stable (=10% change)
Comments: Historical populations threatened by clearcutting, currently believed to be stable (J. Petranka, pers. comm., 1997).
Global Long Term Trend: Increase of 10-25% to decline of 30%
Comments: Hairston and Wiley (1993) monitored populations in mature forests in western North Carolina for nearly two decades and found no evidence of long-term population declines (cited by Petranka 1998).
Highton (2005) presented evidence of reduced numbers observed or collected in a few localities between the 1960s and 1990s, but these data are insufficient for making robust conclusions about long-term trend.
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Threats
Threats
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Degree of Threat: D : Unthreatened throughout its range, communities may be threatened in minor portions of the range or degree of variation falls within natural variation
Comments: Historically threatened by clearcutting. Populations stabilized as very little clearcutting occurs in this region any longer (J. Petranka, pers. comm., 1997). Too much foot traffic in habitat could be detrimental even if not overly destructive.
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Management
Conservation Actions
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Global Protection: Many to very many (13 to >40) occurrences appropriately protected and managed
Comments: Majority of range occurs in Blue Ridge Parkway National Park, Great Smoky Mountains National Park, and U.S. Forest Service lands (J. Petranka, pers. comm., 1997); many of these populations receive some degree of protection (Petranka 1998).
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Biological Research Needs: Determine taxonomic status and life history.
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Wikipedia
Southern Appalachian Salamander
The Southern Appalachian Salamander (Plethodon teyahalee) is a species of salamander in the Plethodontidae family. It is endemic to the United States.
Its natural habitat is temperate forests. It is threatened by habitat loss.
| Wikimedia Commons has media related to: Plethodon teyahalee |
References
- Hammerson, G. 2004. Plethodon teyahalee. 2006 IUCN Red List of Threatened Species. Downloaded on 23 July 2007.
| This lungless salamander article is a stub. You can help Wikipedia by expanding it. |
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Names and Taxonomy
Taxonomy
Comments: Formerly included in P. jordani in some literature (see Highton 1987); lately known as Plethodon teyahalee. A member of the Plethodon glutinosus group. Plethodon teyahalee was regarded as specifically distinct from Plethodon glutinosus by Highton (1983, 1987), but Hairston et al. (1992) regarded the separation as unjustified and continued to use the name Plethodon glutinosus for the slimy salamanders of the southern Appalachians. Hairston (1993) pointed out that the type specimen of Plethodon teyahalee came from an area of hybridization; he therefore collected a new type specimen and changed the name of this salamander from Plethodon teyahalee to Plethodon oconaluftee. Petranka (1998) followed Hairston (1993) and used Plethodon oconaluftee as the name of this salamander. However, because the type specimen of teyahalee is not an F1 hybrid, the name teyahalee is available under the rules of zoological nomenclature and Plethodon oconaluftee is a junior synonym of Plethodon teyahalee (Crother et al. 2000).
Plethodon jordani and Plethodon teyahalee hybridize near Coweeta Hydrologic Laboratory at intermediate elevations in the Nantahala Mountains, North Carolina; apparently the hybrid zone spread upward between 1974 and 1990; probably the hybridization began at the end of the time of intense timbering in the early 1900s (Hairston et al. 1992).
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