Description
provided by AmphibiaWeb articles
This species is the smallest of all brown frogs found in Korea, with males reaching up to 38 mm and females to 44 mm svl. Two dorsal stripes with black spots. This species differs from other brown frogs (e.g., Rana dybowskii) by having a continuous white line along the upper lips. Distinct dark speckling extends from behind the eardrums to the hedge of the snout. Dorsal and ventral skin are smooth with no tubercles. Toe webbing is well-developed. Males are smaller than females and have nuptial pads on the first finger during breeding season.
- Fidenci, P. (2009). Personal observations on Rana coreana. Kyeonggi-do, Sinbuk-myeon, Gawol-eup, Republic of Korea. May 2009.
- Shannon, F. A. (1956). ''The reptiles and amphibians of Korea.'' Herpetologica, 12, 22-49.
- Song, J.-Y. (2008). Rana coreana. In: IUCN 2009. IUCN Red List of Threatened Species. Version 2009.1. www.iucnredlist.org. Downloaded on 22 June 2009.
- Song, J.-Y., Matsui, M., Chung, K.-H., Oh, H.-S., and Zhao, W. (2006). ''Distinct specific status of the Korean brown frog, Rana amurensis coreana (Amphibia: Ranidae).'' Zoological Science, 23, 219-224.
- Szyndlar, Z. (1984). ''A description of a small collection of amphibians and reptiles from the People's Democratic Republic of Korea with notes on the distribution of the herpetofauna in that country.'' Acta Zoologica Cracoviensia, 27, 1-18.
- Yang, S.-Y., and Yu, C. H. (1978). ''Checklist of Korean amphibians.'' Bulletin of the Institute of Basic Sciences, Inha University, 5, 81-90.
Distribution and Habitat
provided by AmphibiaWeb articles
It occurs in Korea (Democratic People's Republic of and Korea, Republic of). Widely distributed in Republic of Korea. It inhabits mostly paddy fields and associated creeks at low elevations (up to 700 m asl but usually below 400 m asl; Song 2008).
Life History, Abundance, Activity, and Special Behaviors
provided by AmphibiaWeb articles
Breeding occurs in early spring and metamorphs can be observed in late May (P. Fidenci, personal observation 2009). This species returns to mountain valleys prior to hibernation.
Life History, Abundance, Activity, and Special Behaviors
provided by AmphibiaWeb articles
Population trends are unknown, however it can be quite common in some areas of Korea. This species has been observed to successfully breed in rice paddies where local residents used pesticides (P. Fidenci, personal observation 2009). Threats to this species include aquatic habitat alteration and loss, pesticides, fertilizers, and pollutants.
Relation to Humans
provided by AmphibiaWeb articles
The species is dependent on the use and preservation of rice paddies.
Rana kunyuensis
provided by wikipedia EN
The Korean brown frog (Rana coreana) is a species of frog in the genus Rana. It is native to the Korean Peninsula and Shandong, China.[2]
Taxonomy and systematics
The Korean brown frog has earlier mostly been considered as subspecies of Rana amurensis, that is, R. a. coreana. However, morphological and genetic analyses support its status as a distinct species, though closely related to R. amurensis.[3] The boundary between these two species is unclear.[1]
Until recently, Korean brown frog was considered Korean endemic. However, molecular and morphological evidence show Rana kunyuensis from Mount Kunyu in the Shandong province of China is the same species as Korean brown frog and its junior synonym.[2][4]
Description
It is the smallest of brown frogs in Korea, with males reaching up to 38 mm (1.5 in) and females to 44 mm (1.7 in) in snout-vent length.[5]
Habitat and conservation
The Korean brown frog inhabits coniferous, mixed and deciduous forests, shrublands, and grasslands. Most commonly it occurs in open, wet places (e.g., wet meadows, swamps, riverbanks, floodplains, etc.). They breed in shallow lakes, ponds, ditches, large puddles, and marshes. Hibernating frogs can be found in large numbers in the bottom mud of ponds and pools.[1]
Korean brown frog may be locally threatened by habitat loss, but this common species is not threatened overall.[1]
The now-synonymized Rana kunyuensis has been assessed as "Data Deficient" by the International Union for Conservation of Nature (IUCN).[6]
References
-
^ a b c d IUCN SSC Amphibian Specialist Group (2019). "Rana coreana". IUCN Red List of Threatened Species. 2019: e.T89108544A110101367. doi:10.2305/IUCN.UK.2019-1.RLTS.T89108544A110101367.en. Retrieved 12 November 2021.
-
^ a b Frost, Darrel R. (2015). "Rana coreana Okada, 1928". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 8 January 2016.
-
^ Song, J.-Y.; Matsui, Masafumi; Chung, Kyu-Hoi; Oh, Hong-Shik; Zhao (2006). "Distinct specific status of the Korean brown frog, Rana amurensis coreana (Amphibia: Ranidae)" (PDF). Zoological Science. 23 (2): 219–224. doi:10.2108/zsj.23.219. hdl:2433/65039. PMID 16603814. S2CID 10206671.
-
^ Zhou, Yu; Yang, Bao-Tian; Li, Pi-Peng; Min, Mi-Sook; Fong, Jonathan J.; Dong, Bing-Jun; Zhou, Zheng-Yan; Lu, Yu-Yan (2015). "Molecular and morphological evidence for Rana kunyensis as a junior synonym of Rana coreana (Anura: Ranidae)". Journal of Herpetology. 49 (2): 302–307. doi:10.1670/13-111. S2CID 85751527.
-
^ "Rana coreana". AmphibiaWeb: Information on amphibian biology and conservation. [web application]. Berkeley, California: AmphibiaWeb. 2016. Retrieved 8 January 2016.
-
^ Li Pipeng, Xie Feng. (2004). "Rana kunyuensis". IUCN Red List of Threatened Species. 2004: e.T58636A11816906. doi:10.2305/IUCN.UK.2004.RLTS.T58636A11816906.en. Retrieved 26 April 2023.
- license
- cc-by-sa-3.0
- copyright
- Wikipedia authors and editors
Rana kunyuensis: Brief Summary
provided by wikipedia EN
The Korean brown frog (Rana coreana) is a species of frog in the genus Rana. It is native to the Korean Peninsula and Shandong, China.
- license
- cc-by-sa-3.0
- copyright
- Wikipedia authors and editors
