taxonID	type	description	language	source
191C87F56F297632FCCFFA5BD92DF8F5.taxon	description	S. c. hallamontanus is found between 800 - 1,400 m around Halla-san, but its natural history has not been described (Oh et al., 2007). On Korean peninsula, S. caecu- Species Extinction period Remarks Prionailurus begalensis 1930 s- 1940 s Last sample acquired by Mori (1928) Ursus arctos Prehistoric era Fossil record (Park, 1974) Sus scrofa Early 20 th century Fossil record (Park, 1974) Cervus nippon Early 20 th century Fossil record (Park, 1974) Species Introduced period Cause of introduction Current status Vulpes vulpes 1987 Farming Few escaped but the population never established Sus scrofa 2003 Farming Increasing Cervus nippon 1992 - 1993 Undesigned restoration Few remained Sciurus vulgaris 2000 s Human release Few remained Tamias sibiricus 1980 s Human release Sustained Myocastor coypus 1990 s Farming Exterminated around 2000 s and reoccurred in 2011 tiens is distributed within montane areas and it is relatively abundant in the north (Won, 1967; Won, 1968; Yoon et al., 2002).	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F287631FF66F8A8D9C6FD33.taxon	description	In 1934, Orii collected this species and Kuroda includ- ed it in C. dsnezumi as a subspecies (Kuroda, 1934; Won, 1967). Jameson and Jones (1977) included C. dsnezumi in C. russula but Corbet (1978) treated C. dsnezumi as a separate species. Iwasa et al. (2001) treated the Jeju population as C. suaveolens but confusion with C. d. quelpartis and C. suaveolens may exist (Motokawa et al., 2003). Motokawa et al. (2003) treated the Jeju population as a junior synonym of C. shantungensis. However, Jeju animals have distinct morphological variations (e. g., larger size) compared to those in the mainland population (Motokawa et al., 2003). Wilson and Reeder (2005) refer to the possibility of subspecies of C. shantungensis. There is still controversy over the presence of C. dsinezumi on Jeju regardless of C. shantungensis. However, only C. shantungensis has been captured in recent surveys. Defining the subspecific level of Jeju’s population is necessary, unless 2 species in the genus Crocidura exist on the island. This species inhabits various habitats from lowland to high mountains up to 1,100 m (Won, 1967; Oh et al., 2007). There is constant home range that widens at the time of breeding season (H. S. Oh, Cheju National University, unpublished report).	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2B7631FCCFFEF9DB79FE00.taxon	description	Far Eastern myotis were captured on the northern part of Jeju and Halla-san in the 1980 s and in 2002 (B. J. Choi, Korean Nature and Environment Institute, Unpublished data).	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2B7631FCCFFCD1DC6CFBF8.taxon	description	This species occurs with Myotis macrodactylus in Gurin cave of Jeju (B. J. Choi, Korean Nature and Environment Institute, Unpublished data).	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2B7631FCCFFBC4DC9CFA6C.taxon	description	On Jeju, a hibernating population has been consistently recorded in Gurin cave (B. J. Choi, Korean Nature and Environment Institute, Unpublished data). Hodgson’s bat is the only endangered mammal on Jeju designated by Korean ministry of environment.	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2B7631FCCFFA56DCF2F95F.taxon	description	There are 2 specimens of Ikonnikov’s myotis on Jeju, in the north and Halla-san (B. J. Choi, Korean Nature and Environment Institute, Unpublished data).	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2B7630FCCFF927D9AAFED0.taxon	description	Around northern Jeju and Gurin cave, the big-footed myotis has been observed in groups of females that foster pups (B. J. Choi, Korean Nature and Environment Institute, Unpublished data).	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2B7631FF64FCA6D9C4FB2E.taxon	description	Greater horseshoe bats on Jeju are found to roost in sea caves, montane caves, and tunnels in large groups of 50 to several hundred. It is commonly observed even around villages, and prefers riparian areas in evergreen broadleaf forests (Oh et al., 2007).	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2A7630FCC1FB77DD54F9D1.taxon	description	Siberian roe on Jeju was regarded as C. p. bedfordi but was revised as C. p. tianschanicus based on genetic data (Koh and Yang, 2000). Jeju has the most abundant roe deer population in Korea due to active protection since the 1980 s (Won and Smith, 1999; Oh et al., 2011). This species inhabits all parts of Jeju above 300 m. Also, road-killed individuals are found often. The Siberian Roe is the most common large mammal species on Jeju.	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2A7637FCC1F999DAD2FEF0.taxon	description	Sika deer on Jeju used to be abundant, but became extinct around 1915 (Mori, 1928). In 1992 and 1993, 12 Taiwanese sika deer (C. n. taioanus) were released for restoration in private without scientific planning (Oh et al., 2007). These individuals were present until 2004, but it is unknown if they still persist. The situation is complicated as several private deer farms operate on Jeju.	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2A7630FF66FA48D936F8B0.taxon	description	Badgers were rare on Jeju, and Kishida and Mori (1931) were not convinced of the species’ presence on the island. Won and Woo (1958) collected the first scientific specimen. Jeju’s badger population now exceeds that of the Korean peninsula. It is unknown whether the population has increased naturally or as a result of releases from badger farms. Badgers on Jeju inhabit shrub forest and small valleys around hills, and excavate burrows or use holes in rocky areas.	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2A7630FF66FD8BDA25FC12.taxon	description	This species inhabits various habitats, including river banks, hills, montane forests, and grassland. Hibernacula and breeding caves are distinct. Long-fingered bats move seasonally and females cooperate in breeding and fostering as a group. This species has been found in northern Jeju and Halla-san (B. J. Choi, Korean Nature and Environment Institute, Unpublished data).	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2A7630FF66FBDCDA6BFAC4.taxon	description	There is collection record of greater tube-nosed bat from the northern part of Jeju (B. J. Choi, Korean Nature and Environment Institute, Unpublished data).	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2D7637FF64F9D9DCEFFD72.taxon	description	The striped field mouse is the most abundant rodent on Jeju and inhabits various habitats from grassland, hills, and shrub forest, to the top of Halla-san.	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2D7637FCCFFD3EDC06FC07.taxon	description	General habitat for this species on Jeju is grassland of low-lying ground, riparian habitats with sedges or grasses and silver grass community of middle mountainous area. This mouse is distributed from lowlands to mountainous areas up to 1,200 m.	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2D7637FF64FBB4D9CDFA5C.taxon	description	On Jeju, T. triton inhaibits shaded, damp habitats near streams within dense forest.	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2C7635FF66F96DD8E8FED0.taxon	description	According to national list of Korean mammals (NIBR, 2012), 71 species of terrestrial mammals are listed as present on the Korean peninsula, and 28 species occur on Jeju Island (Table 3). With 5 species of invasive mammals (Sus scrofa, Cervus nippon, Sciurus vulgaris, Tamias sibiricus and Myocastor coypus), Jeju has 1 endemic species (Apodemus chejuensis) and 3 subspecies (Sorex caecutiens hallamontanus, Mustela sibirica quelpartis and Micromys minutes hertigi). Also, the subspecific level of white-toothed shrew (Crocidura sp) on Jeju is not clear. Compared to the Korean peninsula, which has 1 endemic mammal (NIBR, 2011), the number of endemic mammals on Jeju is quite large. Conservation of this island’s endemism is an important priority (Van Dyke, 2008).	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
191C87F56F2C7636FF0AFE94DAF4F9ED.taxon	description	Crocidura shantungensis, Asian Lesser White-Toothed Shrew Order Chiroptera Family Rhinolophidae Rhinolophus ferrumequinum quelpartis, Greater Horseshoe Bat Family Vespertilionidae Pipistrellus abramus, Japanese Pipistrelle Hypsugo alaschanicus coreensis, Alashanian Pipistrelle Myotis bombinus, Far Eastern Myotis Myotis branditii, Brandt’s Myotis Myotis daubentonii, Daubenton’s Myotis Myotis formosus, Hodgson’s Myotis EN Myotis ikonnikovi, Ikonnikov’s Myotis Myotis macrodactylus, Big-footed Myotis Miniopterus fuscus, Southeast Asian Long-fingered Bat Miniopterus schreibersii fuliginosus, Schreibers’s Long-fingered Bat Murina leucogaster, Greater Tube-nosed Bat Order Carnivora Family Mustelidae Meles leucurus, Asian Badger Mustela sibirica quelpartis, Jeju Weasel E Order Artiodactyla Family Suidae Sus scrofa, Wild Boar A Family Cervidae Capreolus pygargus tianschanicus, Siberian Roe Cervus nippon, Sika A Order Rodentia Family Sciuridae Sciurus vulgaris, Eurasian Red Squirrel A Tamias sibiricus, Siberian Chipmunk A Family Cricetidae Tscherskia triton, Greater Long-tailed Hamster Family Muridae Apodemus chejuensis, Jeju Striped Field Mouse E Micromys minutus hertigi, Jeju Harvest Mouse E Mus musculus mollossinus, House Mouse Rattus norvegicus, Brown Rat Rattus rattus, Roof Rat Family Myocastoridae Myocastor coypus, Coypu or Nutria A 5 orders 10 families 21 genera 28 species Key: E, endemic species; EN, endangered species; A, invasive alien species	en	Jo, Yeong-Seok, Kim, Tae-Wook, Choi, Byeong-Jin, Oh, Hong-Shik (2012): Current status of terrestrial mammals on Jeju Island. Journal of Species Research 1 (2): 249-256, DOI: 10.12651/JSR.2012.1.2.249, URL: http://koreascience.or.kr/journal/view.jsp?kj=JOSRB5&py=2012&vnc=v1n2&sp=249
