Eurycea chamberlaini - Harrison and Guttman, 2003
Chamberlain's Dwarf Salamander
Other English Common Names: Chamberlain's dwarf salamander
Taxonomic Status: Accepted
Related ITIS Name(s): Eurycea chamberlaini Harrison and Guttman, 2003 (TSN 668289)
Unique Identifier: ELEMENT_GLOBAL.2.101323
Element Code: AAAAD05092
Informal Taxonomy: Animals, Vertebrates - Amphibians - Salamanders
 
Kingdom Phylum Class Order Family Genus
Animalia Craniata Amphibia Caudata Plethodontidae Eurycea
Genus Size: D - Medium to large genus (21+ species)
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Concept Reference
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Concept Reference: Harrison, J. R., III, and S. I. Guttman. 2003. A new species of Eurycea (Caudata: Plethodontidae) from North and South Carolina. Southeastern Naturalist 2(2):159-178.
Concept Reference Code: A03HAR02EHUS
Name Used in Concept Reference: Eurycea chamberlaini
Taxonomic Comments: Eurycea chamberlaini formerly was included in E. quadridigitata; described as a new species by Harrison and Guttman (2003).
Conservation Status
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NatureServe Status

Global Status: G4
Global Status Last Reviewed: 04May2011
Global Status Last Changed: 04May2011
Rounded Global Status: G4 - Apparently Secure
Reasons: Small or moderate range (not fully documented) in the southeastern United States; apparently not particularly rare nor abundant; further taxonomic study is needed to clarify the range of this species.
Nation: United States
National Status: N4 (04May2011)

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Georgia (S1), North Carolina (S4), South Carolina (SNR)

Other Statuses

IUCN Red List Category: DD - Data deficient

NatureServe Global Conservation Status Factors

Range Extent: 20,000-200,000 square km (about 8000-80,000 square miles)
Range Extent Comments: Range is incompletely known. Harrison and Guttman (2003) stated that the species is known from portions of the Piedmont in both North and South Carolina, the upper Coastal Plain in South Carolina, and portions of the central Coastal Plain in North Carolina. Additionally, Eurycea chamberlaini has been collected in Georgia and Alabama.

Eurycea chamberlaini corresponds in part with the previously recognized "yellow morph" of E. quadridigitata. Harrison and Guttman (2003) reported that populations of the yellow morph from South Carolina and Louisiana appear to comprise two species, based on genetic differences. Thus further study is needed before the range of E. chamberlaini can be precisely described.

Number of Occurrences: 21 - 300
Number of Occurrences Comments: Harrison and Guttman (2003) mapped 21 occupied sites in North Carolina and South Carolina; additional populations exist in other states.

Population Size: 2500 - 1,000,000 individuals
Population Size Comments: Total adult population size is unknown but presumably is at least several thousand. Harrison and Guttman (2003) listed 50 paratypes from North Carolina and South Carolina; 1-8 specimens per site; apparently not particularly rare nor abundant.

Number of Occurrences with Good Viability/Integrity: Unknown

Overall Threat Impact: Unknown

Short-term Trend: Decline of <30% to relatively stable

Long-term Trend: Decline of <50% to Relatively Stable

Other NatureServe Conservation Status Information

Distribution
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Global Range: (20,000-200,000 square km (about 8000-80,000 square miles)) Range is incompletely known. Harrison and Guttman (2003) stated that the species is known from portions of the Piedmont in both North and South Carolina, the upper Coastal Plain in South Carolina, and portions of the central Coastal Plain in North Carolina. Additionally, Eurycea chamberlaini has been collected in Georgia and Alabama.

Eurycea chamberlaini corresponds in part with the previously recognized "yellow morph" of E. quadridigitata. Harrison and Guttman (2003) reported that populations of the yellow morph from South Carolina and Louisiana appear to comprise two species, based on genetic differences. Thus further study is needed before the range of E. chamberlaini can be precisely described.

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map
Endemism: endemic to a single nation

U.S. & Canada State/Province Distribution
United States GA, NC, SC

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
SC Aiken (45003), Hampton (45049), Orangeburg (45075), Richland (45079)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
03 Congaree (03050110)+, South Fork Edisto (03050204)+, Middle Savannah (03060106)+, Lower Savannah (03060109)+, Canoochee (03060203)+, Lower Oconee (03070102)+, Middle Chattahoochee-Walter F. George Reservoir (03130003)+, Lower Chattahoochee (03130004)+, Upper Flint (03130005)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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General Description: See Harrison and Guttman (2003).
Diagnostic Characteristics: See Harrison and Guttman (2003).
Habitat Type: Freshwater
Non-Migrant: N
Locally Migrant: N
Long Distance Migrant: N
Habitat Comments: Occurs in a variety of habitats but seems to prefer seepage areas near streams or ponds, particularly in Piedmont and upper Coastal Plain areas (Harrison and Guttman 2003).
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation
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Group Name: Aquatic/Wetland Plethodontid Salamanders

Use Class: Not applicable
Minimum Criteria for an Occurrence: Occurrences are based on evidence of historical presence, or current and likely recurring presence, at a given location. Such evidence minimally includes collection or reliable observation and documentation of one or more individuals (including larvae or eggs) in or near appropriate habitat where the species is presumed to be established and breeding.
Separation Barriers: Busy highway, especially with high traffic volume at night; other totally inappropriate habitat that the salamanders cannot traverse.
Alternate Separation Procedure: Separation distance for stream-dwelling species along riverine corridors: 10 stream km. Separation distance for other freshwater aquatic and wetland habitats: 3 km. Separation distance for upland habitat: 1 km.
Separation Justification: These salamanders rarely successfully cross roadways that have heavy traffic volume at night, when most movements occur. Salamanders in this Specs Group, except strictly subterranean species, tend to be able to traverse upland habitat when conditions are wet, and generally they can pass through atypical wetland and aquatic habitats to reach another patch of suitable habitat. However, Grover and Wilbur (2002) created replicated seeps at distances of 3, 15, and more than 30 m from streams or natural seeps and found that Desmognathus fuscus and Gyrinophilus porphyriticus colonized the new seeps at 3 m and 15 m but were rare or absent at new seeps more than 30 m from the nearest stream or natural seep.

Although these specifications do not include rivers as barriers, Adams and Beachy (2001) documented morphological variation among populations of Gyrinophilus porphyriticus in the southern Appalachian Mountains and found patterns "consistent with the hypothesis that large rivers restrict sizable gene flow." Large rivers probably function at least as unsuitable habitat for many species in this Specs Group.

Compared to larger ambystomatid salamanders, the movements of plethodontids are poorly documented, but home ranges likely tend to be very small, on the order of a few meters to a few dozen meters in length or diameter. Yet, on occasion, dispersing individuals likely travel at least several hundred meters, and stream-dwelling species likely disperse much farther along riverine corridors. Over a number of years, it is likely that these salamanders can spread multiple kilometers through suitable habitat.

Inferred Minimum Extent of Habitat Use (when actual extent is unknown): .1 km
Date: 28Oct2004
Author: Hammerson, G.
Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 04May2011
NatureServe Conservation Status Factors Author: Hammerson, G.
Element Ecology & Life History Edition Date: 16Jul2003

Zoological data developed by NatureServe and its network of natural heritage programs (see Local Programs) and other contributors and cooperators (see Sources).

References
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  • Harrison, J. R., III, and S. I. Guttman. 2003. A new species of Eurycea (Caudata: Plethodontidae) from North and South Carolina. Southeastern Naturalist 2(2):159-178.

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