Berry Cave salamander

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Berry Cave salamander
Gyrinophilus gulolineatus (10.3897-subtbiol.28.30506) Figure 1.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Urodela
Family: Plethodontidae
Genus: Gyrinophilus
Species:
G. gulolineatus
Binomial name
Gyrinophilus gulolineatus
Brandon, 1965
Synonyms
  • Gyrinophilus palleucus gulolineatusBrandon, 1965 [2]

The Berry Cave salamander (Gyrinophilus gulolineatus) is a species of salamander in the family Plethodontidae, [3] endemic to the Ridge-and-Valley Appalachians of eastern Tennessee in the United States. Its natural habitat is inland karsts where it lives underground. It is threatened by habitat loss.

Contents

Description

This salamander resembles the Tennessee cave salamander (Gyrinophilus palleucus) but grows to a larger size, has a more spatulate snout, a broader head and more pigmentation. The premaxilla bones at the tip of the snout are completely divided in adults of this species while they are not in the Tennessee cave salamander. The larvae have small, functional eyes and they can detect vibrations in the water with the help of mechanoreceptors which are located on the head and sides. If they proceed to the full adult state, their eyes become functionless. [4]

Distribution

This salamander is known from caves in the Ridge-and-Valley Appalachians of eastern Tennessee; its range is smaller than that of the spring salamander (Gyrinophilus porphyriticus) and is completely inside it, and the two species sometimes inhabit the same cave systems. [4]

Biology

Phylogenetic analysis using nuclear and mitochondrial DNA seems to indicate that the Berry Cave salamander and the Tennessee cave salamander have diverged from the spring salamander only recently. [4] The Berry Cave salamander is usually a paedomorphic species which does not undergo metamorphosis to an adult stage, instead remaining and breeding in the larval state, retaining its juvenile traits for the rest of its life. [4]

Status

G. gulolineatus inhabits a limited number of caverns in the mountains of East Tennessee, and the total area it occupies is less than 5,000 km2 (1,900 sq mi). In the Berry Cave for which it was named, the population seems to be declining, and its population overall is unknown. The International Union for Conservation of Nature has rated its conservation status as "endangered" and advocates protection of the watersheds that drain into the underground systems in which it lives. [1]

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References

  1. 1 2 Geoffrey Hammerson (2004). "Gyrinophilus gulolineatus". IUCN Red List of Threatened Species . 2004: e.T59280A11896479. doi: 10.2305/IUCN.UK.2004.RLTS.T59280A11896479.en . Retrieved 15 November 2021.
  2. Brandon, R. A. (1965). "A new race of the neotenic salamander Gyrinophilus palleucus". Copeia. 1965 (3): 346–352. doi:10.2307/1440799. JSTOR   1440799.
  3. Frost, Darrel R. (2015). "Gyrinophilus gulolineatus Brandon, 1965". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 8 September 2015.
  4. 1 2 3 4 White, William B.; Culver, David C. (2012). Encyclopedia of Caves. Academic Press. pp. 612, 673–674. ISBN   978-0-12-383832-2.