Vegas Valley leopard frog

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Vegas Valley leopard frog
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Amphibia
Order:
Anura
Family:
Ranidae
Genus:
Rana
Species:
R. fisheri
Binomial name
Rana fisheri
Stejneger, 1893
File:Rangemap-VegasValleyFrog.png
Former range (in red)
Synonyms

Lithobates fisheri
Rana pipiens fisheri
Rana onca fisheri
Rana (Pantherana) fisheri

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The Vegas Valley leopard frog (Rana fisheri) is a species of frog previously declared extinct.[1] Once it occurred in the Las Vegas Valley, as well as Tule Springs, Clark County, southern Nevada, United States of America, at elevations between 370 and 760 m (1,210 and 2,490 ft).[2][3][4][5] It was believed to be the only frog endemic to the United States to have become extinct in modern times.[6]

A. Vanderhorst collected 10 specimens of this species at Tule Springs on January 13, 1942. These frogs were believed to be the last recorded specimens of the Vegas Valley leopard frog, and are now in the University of Michigan Museum of Comparative Zoology collection.[7][8] The Vegas Valley leopard frog was considered extinct[5] after extensive searches have failed to locate the species.[1]

In 2011, a genetic analysis using DNA from preserved museum specimens of the Vegas Valley leopard frog revealed it is 100% identical, genetically, to the northwestern Mogollon Rim populations[9] of the Chiricahua leopard frog (Rana chiricahuensis), which is extant but threatened.[10] While it has been extirpated from the Las Vegas area, the frog is no longer considered extinct because it is the same species as the Chiricahua leopard frog.[11] According to nomenclatural priority, the northwestern Mogollon Rim population of R. chiricahuensis, described in 1979, is referable to the 1893-described, extinct population of the species, R. fisheri.[9] R. chiricahuensis may remain a valid taxon for the southern and eastern range of the Chiricahua leopard frog.[9]

It appears then that there are two separate species within the fisheri/chiricahuensis complex - Rana fisheri, comprising the former Vegas Valley leopard frogs near Las Vegas and the Chiricahua leopard frogs from the Mogollon Rim, and Rana chiricahuensis, comprising the Chiricahua leopard frogs from the southern and eastern portions of the range in Arizona and New Mexico. The status of the Chiricahua leopard frogs in northern Mexico may be uncertain, and this may be yet another separate lineage. The fisheri/chiricahuensis complex has a close relationship with an unnamed leopard frog species called only "Rana species 2" known from San Luis Potosí, Mexico.[12]

Rana fisheri is in the subgenus Pantherana.[13]

References

  1. ↑ 1.0 1.1 1.2 Randy Jennings, Geoffrey Hammerson (2004) Lithobates fisheri. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Stebbins, R. C. (1951) Amphibians of western North America. University of California Press, Berkeley, California.
  4. ↑ Stebbins, R. C. 1985. A field guide to western reptiles and amphibians. Houghton Mifflin Co., Boston, MA.. Mild. Nat. 77:323–355 ISBN 039538253X.
  5. ↑ 5.0 5.1 Jennings, R.D., Riddle, B.R. and Bradford, D. (1995) Rediscovery of Rana onca, the relict leopard frog, in southern Nevada with comments on the systematic relationships of some leopard frogs (Rana pipiens complex) and the status of populations along the Virgin River. Unpublished report.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Platz, J. E. (1984) Status report for Rana onca Cope. Unpublished report prepared for Office of Endangered Species, U. S. Fish and Wildlife Service, Albuquerque, New Mexico.
  8. ↑ Center for Biological Diversity and Southern Utah Wilderness Alliance (2002) Petition to list the relict leopard frog (Rana onca) as an endangered species under the Endangered Species Act. biologicaldiversity.org
  9. ↑ 9.0 9.1 9.2 Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ Bhanoo, S. N. A frog endangered but extinct no more. New York Times June 17, 2011. Accessed June 17, 2011.
  11. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  12. ↑ Hillis, D.M. & Wilcox, T.P. (2005). Phylogeny of the New World true frogs (Rana). Mol. Phylogenet. Evol. 34(2): 299–314.
  13. ↑ Hillis, D. M. (2007). Constraints in naming parts of the Tree of Life. Mol. Phylogenet. Evol. 42: 331–338.

Further reading

  • Hillis, D.M., Frost, J.S.,& Wright, D.A. (1983). Phylogeny and biogeography of the Rana pipiens complex: A biochemical evaluation. Systematic Zoology' 32: 132–143.
  • Hillis, D.M. (1988). Systematics of the Rana pipiens complex: Puzzle and paradigm. Annual Review of Systematics and Ecology 19: 39–63.
  • Hillis, D.M. & Wilcox, T.P. (2005). Phylogeny of the New World true frogs (Rana). Mol. Phylogenet. Evol. 34(2): 299–314. doi:10.1016/j.ympev.2004.10.007 PDF fulltext.
  • Hillis, D. M. (2007). Constraints in naming parts of the Tree of Life. Mol. Phylogenet. Evol. 42: 331–338.

External links

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