Desmognathus kanawha
Pyron and Beamer, 2022
Kanawha Black-bellied Salamander
G4Apparently SecureGlobal Rank
UnknownThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.1256212
Element CodeAAAAD03290
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVertebrate Animal
Endemicendemic to a single nation
KingdomAnimalia
PhylumCraniata
ClassAmphibia
OrderCaudata
FamilyPlethodontidae
GenusDesmognathus
Other Common NamesNew River Black-bellied Salamander (EN)
Concept ReferencePyron, R. A. and D. A. Beamer. 2022b. Nomenclatural solutions for diagnosing 'cryptic' species using molecular and morphological data facilitate a taxonomic revision of the Black-bellied Salamanders (Urodela, Desmognathus 'quadramaculatus') from the southern Appalachian Mountains. Bionomina 27(1): 1-43.
Taxonomic CommentsThe former Desmognathus quadramaculatus E lineage of Pyron et al. (2022d). Pyron and Beamer (2022) revised the taxonomy of black-bellied salamanders and described this species based on genetic divergence and apparent reproductive isolation from other Black-bellied populations. Populations of this species were described, at least in part, by (Organ 1961), Mills (1996), Wooten (2001) and Merritt (2005) (Pyron and Beamer 2022).
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-08-14
Change Date2024-08-14
Edition Date2024-08-14
Edition AuthorsGundy, R. L. (2024)
Threat ImpactUnknown
Range Extent20,000-200,000 square km (about 8000-80,000 square miles)
Number of Occurrences81 - 300
Rank ReasonsThis species has a limited range in the southeastern United States. It is considered widespread and abundant in the range with no evidence of population declines or significant threats.
Range Extent CommentsThis species occurs primarily in the Kanawha River drainage of Virginia and West Virginia, with populations in the drainages of the Upper Pee Dee of North Carolina and Virginia, the Upper Tennessee of southwestern Virginia and potentially adjacent northeastern Tennessee, the Roanoke of north-central North Carolina and south-central Virginia, and the Lower Chesapeake of west-central Virginia, USA. The southwestern and northeastern distributional extents of this species are unknown (Pyron and Beamer 2022). Using iNaturalist (2024) records, range extent is estimated to be approximately 37,086 km².
Occurrences CommentsApplying a 3 km separation distance to iNaturalist (2024) records, there are approximately 107 occurrences.
Threat Impact CommentsNo major threats are known at this time. Mills (1996) noted overcollection of this species for fishing bait at one site in West Virginia. Logging activities in national forests have the potential to degrade habitat and reduce populations (Petranka et al. 1993).
Ecology & Habitat
Diagnostic Characteristics
Pyron and Beamer (2022) state "this species cannot, to our knowledge, be reliably differentiated from closely related, Black-bellied congeners by any feature of external phenotype."
Habitat
This species occupies large and small streams, and is found within the stream and along stream banks (Organ 1961, Mills 1996). All age classes shelter under rocks and seasonally available leaf packs, with adults generally preferring rocks (Mills 1996). Found at elevations from 3100-5100 ft. (944-1554 m) in the Balsam Mountains of southwestern Virginia (Organ 1961). Found at 549-605 m at one site in West Virginia (Mills 1996).
Ecology
At the upper elevational limits in the Balsam Mountains of southwest Virginia, this is often the only Desmognathus species occupying the water (Organ 1961).
Reproduction
Females lay 21-43 (average 31) eggs attached to the underside of rocks, from June-August (Organ 1961). Females brood egg clusters (Organ 1961, Mills 1961). Eggs hatch in August-September, with hatchlings measuring 12-16 mm SVL (Organ 1961, Mills 1996, Pyron and Beamer 2022). Metamorphosis takes place at 2-5 years of age (Organ 1961, Mills 1996). Males may mature as early as 4 years (Organ 1961) and females as late as 8 years (Mills 1996). Adult males may be slightly larger than females (Organ 1961, Pyron and Beamer 2022).
Palustrine HabitatsRiparian
Other Nations (1)
United StatesNNR
| Province | Rank | Native |
|---|
| West Virginia | S3 | Yes |
| Virginia | S4 | Yes |
| North Carolina | S4 | Yes |
Roadless Areas (23)
Virginia (18)
| Area | Forest | Acres |
|---|
| Bear Creek | Jefferson National Forest | 18,274 |
| Beaver Dam Creek | Jefferson National Forest | 1,135 |
| Brush Mountain | Jefferson National Forest | 6,002 |
| Horse Heaven | Jefferson National Forest | 4,748 |
| Lewis Fork Addition | Jefferson National Forest | 749 |
| Little Walker Mountain | Jefferson National Forest | 9,818 |
| Little Wilson Creek Addition B | Jefferson National Forest | 1,725 |
| Long Spur | Jefferson National Forest | 6,417 |
| Mountain Lake Addition A | Jefferson National Forest | 1,469 |
| Mountain Lake Addition B (VA) | Jefferson National Forest | 3,405 |
| Mountain Lake Addition C | Jefferson National Forest | 494 |
| New London Bridge Branch | Jefferson National Forest | 844 |
| Peters Mountain Addition A (VA) | Jefferson National Forest | 1,268 |
| Peters Mountain Addition B | Jefferson National Forest | 2,909 |
| Raccoon Branch | Jefferson National Forest | 4,388 |
| Rogers Run | Jefferson National Forest | 181 |
| Seng Mountain | Jefferson National Forest | 6,428 |
| Shawvers Run Addition | Jefferson National Forest | 1,927 |
References (17)
- Behler, J. L., and F. W. King. 1979. The Audubon Society field guide to North American reptiles and amphibians. Alfred A. Knopf, New York. 719 pp.
- Camp, C. D., and D. G. Lovell. 1989. Fishing for "spring lizards": a technique for collecting blackbelly salamanders. Herpetol. Rev. 20:47.
- Camp, C. D., and T. P. Lee. 1996. Intraspecific spacing and interaction within a population of <i>Desmognathus quadramaculatus</i>. Copeia 1996: 78-84.
- Conant, R. 1975. A Field Guide to Reptiles and Amphibians of Eastern and Central North America. Second Edition. Houghton Mifflin Company, Boston, Massachusetts. xvii + 429 pp.
- Hairston, N. G., Sr., and R. H. Wiley. 1993. No decline in salamander (Amphibia: Caudata) populations: a twenty-year study in the southern Appalachians. Brimleyana 18:59-64.
- Huheey, J. E., and A. Stupka. 1967. Amphibians and reptiles of Great Smoky Mountains National Park. Univ. Tennessee Press, Knoxville. ix + 98 pp.
- iNaturalist. 2024. Online. Available: https://www.inaturalist.org (accessed 2024).
- Martof, B. S., W. M. Palmer, J. R. Bailey, and J. R. Harrison, III. 1980. Amphibians and reptiles of the Carolinas and Virginia. University of North Carolina Press, Chapel Hill, North Carolina. 264 pp.
- Merritt, D. S. 2005. Analysis of genotypic and phenotypic differences in <i>Desmognathus quadramaculatus</i> across the Southern Appalachians. M.S. Thesis, Marshall University, Huntington, West Virginia:1-56.
- Mills, G. 1996. A study on the life history and seasonal foraging habits of the salamander <i>Desmognathus quadramaculatus</i> Holbrook, in WV. M.S. Thesis, Marshall University, Huntington, West Virginia:1-122.
- Organ, J. A. 1961. Studies of the local distribution, life history, and population dynamics of the salamander genus <i>Desmognathus</i> in Virginia. Ecological Monographs 31(2): 189–220. doi: 10.2307/1950754
- Peterman, W. E., J. A. Crawford, and R. D. Semlitsch. 2008. Productivity and significance of headwater streams: population structure and biomass of the black-bellied salamander (<i>Desmognathus quadramaculatus</i>). Freshwater Biology 53: 347–357.
- Petranka, J. W., M. E. Eldridge, and K. E. Haley. 1993. Effects of timber harvesting on southern Appalachian salamanders. Conservation Biology 7(2): 363-370.
- Pyron, R. A. and D. A. Beamer. 2022b. Nomenclatural solutions for diagnosing 'cryptic' species using molecular and morphological data facilitate a taxonomic revision of the Black-bellied Salamanders (Urodela, <i>Desmognathus </i>'<i>quadramaculatus</i>') from the southern Appalachian Mountains. Bionomina 27(1): 1-43.
- Pyron, R. A., K. A. O'Connell, E. M. Lemmon, A. R. Lemmon, and D. A. Beamer. 2022d. Candidate-species delimitation in <i>Desmognathus </i>salamanders reveals gene flow across lineage boundaries, confounding phylogenetic estimation and clarifying hybrid zones. Ecology and Evolution 12:e8574.
- Valentine, B.D. 1974. <i>Desmognathus quadramaculatus</i>. Catalogue of American Amphibians and Reptiles. 153:1-4.
- Wooten, J. A. 2001. Distribution, morphometrics, and tooth morphology of the genus <i>Desmognathus </i>in West Virginia. M.S. Thesis, Marshall University, Huntington, West Virginia:1-395.