• Title/Summary/Keyword: Endemics

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Taxonomic study of the Family Engraulidae(Pisces : Clupeiformes) from Korea (한국산 멸치과 어류의 분류학적 연구)

  • Youn, Chang-Ho;Kim, Ik-Soo
    • Korean Journal of Ichthyology
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    • v.8 no.2
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    • pp.33-46
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    • 1996
  • Taxonomic revision of the family Engraulidae was conducted based on the specimens collected from the coasts of Korean Peninsula from 1990 to 1995. Seven species representing four genera are reviewed, and provisional keys to the species and genera are provided with synonyms and their distributions. Thryssa adelae (Rutter, 1897) newly reported from Korea is redescribed in this paper. Thryssa kammalensis (Bleeker, 1849) is a synonym of Thryssa koreana or Thryssa chefuensis. Setipinna tenuifilis (Valenciennes, 1848) is proposed as a replacement name for Setipinna taty, Thryssa adelae (Rutter, 1897) for Thryssa mystax and Thryssa purava, Coilia nasus Schlegel 1846 for Coilia ectenes. Most species of clupeoid fishes in Korea are shared with Chinese and Japanese faunas including tropical and temperature species without endemics.

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Taxonomic Revision of the Flounders (Pisces : Pleuronectiformes) from Korea (한국산 가자미아목 어류의 분류학적 연구)

  • Kim, Ik-Soo;Youn, Chang-Ho
    • Korean Journal of Ichthyology
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    • v.6 no.2
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    • pp.99-131
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    • 1994
  • The taxonomic revision of the flounders of the suborder Pleuronectoidei was made based on the specimens collected from the coasts of the Korean Peninsula from 1989 to 1993. The flounders of Korea are composed 34 species belonging to 24 genera and 4 families, and the keys to species, genera and families are provided with redescriptions and distributions. Three species of the flounders are found to be new to Korea : Tarphops oligolepis (Bleeker) of the family Paralichthyidae, Parabothus kiensis (Tanaka) of the family Bothidae and Pleuronectes pallasii Steindachner of the family Pleuronectidae. Laeops lanceolata, previously recorded in the Korean fish list, was found to be synonym of L. kitaharai. The fishes of the families Paralichthyidae and Bothidae were distributed in the Yellow Sea and the southern coast of Korea, while most of the flounder species of the family Pleuronectidae except Limanda yokohamae, Eopsetta grigorjewi, and Pleuronichthys cornutus were found along the eastern coast of Korea. It appears that Korean flounders are similar to those of Chinese and Japanese faunas which include tropical and temperate species without endemics.

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Assessing the risk of recurrence of porcine epidemic diarrhea virus in affected farms on Jeju Island, South Korea

  • Jang, Guehwan;Lee, Sunhee;Lee, Changhee
    • Journal of Veterinary Science
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    • v.22 no.4
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    • pp.48.1-48.15
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    • 2021
  • Background: Porcine epidemic diarrhea virus (PEDV) is a swine enteropathogenic coronavirus that has devastated the swine industry in South Korea over the last 30 years. The lack of an effective method to control the endemics has led to a surge in PEDV recurrences in affected farms throughout the country. Objectives: In the first step toward establishing systematic monitoring of and active control measures over the swine populations, we constructed an assessment model that evaluates the status of (1) biosecurity, (2) herd immunity, and (3) virus circulation in each of the PEDV-infected farms. Methods: A total of 13 farrow-to-finish pig farms with a history of acute PEDV infection on Jeju Island were chosen for this study. The potential risk of the recurrence in these farms was estimated through on-site data collection and laboratory examination. Results: Overall, the data indicated that a considerable number of the PEDV-infected farms had lax biosecurity, achieved incomplete protective immunity in the sows despite multi-dose vaccination, and served as incubators of the circulating virus; thus, they face an increased risk of recurrent outbreaks. Intriguingly, our results suggest that after an outbreak, a farm requires proactive tasks, including reinforcing biosecurity, conducting serological and virus monitoring to check the sows' immunity and to identify the animals exposed to PEDV, and improving the vaccination scheme and disinfection practices if needed. Conclusions: The present study highlights the significance of coordinated PEDV management in infected farms to reduce the risk of recurrence and further contribute towards the national eradication of PEDV.

The Vascular Plants in Mt. Gaji (Gyeongsang nam-do) (가지산(경남)의 관속식물상)

  • Kim, Jung-Hyun;Lee, Ji-Yeon;Lee, Byoung-Yoon;Yoon, Chang-Young;Kim, Min-Ha
    • Korean Journal of Plant Resources
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    • v.23 no.4
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    • pp.303-326
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    • 2010
  • This study was carried out to investigate the flora of Mt. Gaji(Gyeongsang nam-do). The vascular plants which are collected in 12 times(from May to Oct. 2006 and Mar. to Oct. 2009) were identified as 573 taxa in total, including 106 families, 314 genera, 503 species, 6 subspecies, 56 varieties, 8 forms. There were many useful plants such as 20 taxa of Korean endemics and 10 taxa of specially designated plants which were determined by the Korea Forest Service. The designated in endangered plants by the Ministry of Environment, which should be protected by the wildlife protection law, were identified as 3 taxa and 64 taxa of specially designated floristic regional indicator plants by the Ministry of Environment. Based on the list of approved for delivering overseas of plants, 23 taxa were recorded in the investigated area. The naturalized plants were identified as 22 taxa, and their naturalization ratio were found to be 3.8% respectively. The 573 taxa listed consists of 217 taxa(37.8%) of edible plants, 181 taxa(31.5%) of medicinal plants, 91 taxa(15.8%) of pasture plants, 86 taxa(15%) of ornamental plants, 19 taxa(3.3%) of timber plants, 11 taxa(1.9%) of fiber plants and 7 taxa(1.2%) of industrial plants.

Floristic Study of Dalmasan and its Adjacent Regions (달마산과 그 인근지역의 식물상 연구)

  • Lee, You-Mi;Park, Su-Hyun;Choi, Hyeong-Seon;Yang, Jong-Cheol;Nam, Gi-Heum;Chung, Gyu-Young;Choi, Hyeok-Jae
    • Korean Journal of Environment and Ecology
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    • v.23 no.1
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    • pp.1-21
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    • 2009
  • The vascular flora of Dalmasan and its adjacent regions, located in Haenam-gun, Jellanam-do, is surveyed from Mar. to Oct. 2005. The number of the vascular plant taxa based on voucher specimens is 545 total which belongs to 112 families, 322 genera, 473 species, 3 subspecies, 60 varieties and 9 forms respectively. Among them, 12 taxa of Korean endemics and 4 taxa of rare and endangered plants were investigated in addition to 86 taxa of specially designated plants announced by the Ministry of Environment. A unrecorded taxon, Stellaria neglecta Weihe, is also collected in this area. Furthermore, The habitat of 5 taxa such as Asplenium trichomanes L., Asplenium wilfordii Mett. ex Kuhn, Miscanthus sinensis var. chejuensis Y.N.Lee, Impatiens kojeensisi Y.N.Lee and Digitaria violascens var. intersita Ohwi were newly added to the flora of korea, and 29 taxa of induced and naturalized plants were observed in this area.

Floristic study of Ibamsan Mt. and Baekamsan Mt. (입암산과 백암산의 식물상)

  • SUN, Eun-Mi;SON, Hyun-Deok;PARK, Seong-Bae;KIM, U-Nam;IM, Hyoung-Tak
    • Korean Journal of Plant Taxonomy
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    • v.50 no.1
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    • pp.27-55
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    • 2020
  • We investigated the flora of Ibamsan Mt. and Baekamsan Mt., and discuss here important vascular plants found on these mountains. We created a plant list using voucher specimens collected from Ibamsan Mt. and Baekamsan deposited at CNU. There are 769 taxa in Ibamsan Mt. and Baekamsan Mt., consisting of 116 families, 403 genera, 687 species, 16 subspecies, 58 varieties, and 8 forms. Twenty-four endemic plants of Korea were found, including Coreanomecon hylomeconoides Nakai and Eranthis byunsanensis B. Y. Sun. There are 15 rare plants on Ibamsan Mt. and Baekamsan as designated by the Korea Forest Service, including Iris koreana Nakai and Chamaegastrodia shikokiana Makino & F. Maek., as well as 14 red-list plants as designated by the Ministry of the Environment, including Lycoris chinensis var. sinuolata K. Tae & S. C. Ko ex K. Tae & S. C. Ko and Cymbidium macrorhizon Lindl. In total, there are 133 taxa of floristic regional indicator plants, including four level V taxa, such as Iris koreana Nakai; ten level IV taxa, such as Lindera sericea (Siebold & Zucc.) Blume; 28 level III taxa, such as Botrychium japonicum (Prantl) Underw.; 22 level II taxa, including Hylomecon vernalis Maxim.; and 69 level I taxa, including Dryopteris erythrosora (D. C. Eaton) Kuntze. There are 37 invasive plants, including Rumex acetosella L. and Symphyotrichum pilosum (Willd.) G. L. Nesom.

Floristic Study on T$\v{o}$kyusan National Park (덕유산 국립공원지역의 관속식물상)

  • 임경빈;김용식;전승훈;전정일
    • Korean Journal of Environment and Ecology
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    • v.7 no.2
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    • pp.91-103
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    • 1994
  • The floristic characteristics and ecological conservation measures for the plant resources of the Tokyusan National Park. Chollapuk-do, Korea were discussed. The field works was done for three times in nine major areas from April to July, 1993. The total number of vascular plants in this area were summarized as 97 families, 297 genera, 469 species and 541 kinds. The nineteen kinds of artificially planted, twelve kinds of Korean endemics and sixteen kinds of Korean rare and endangered species in the area were revised and compiled in the list. The flora of the area were categorized into the Southern part of the Korean Region, where the species such as Quercus serrata. Fraxinus sieboldiana, Ilex macropoda, Lindera erythrocarpa, Lindera glauca, Rubus coreanus, Taxus cuspidata, Cephalotaxus koreana and Abies koreana were roled as major floristic components in the Korean Region and endemized in the southern part of Korea. The natural communities such as Adonis amurensis Community, Taxus cuspidata Community, Betula ermanii Community, Hemerocalis spp. Community, Rhododendron tschnoskii Community, Rhododendron schlippenbachii Community, Disporum ovale Community, Tricyrtis dilatata Community, and present natural distribution of Abies koreana, and swamp vegetation in Tumunsan areas, as well as upland grassland at the summit of Hyangchokpong were represented for their floristic values in the area. The fifteen kinds of medicinal plants such as Gastrodia elata, seven kinds of ornamental plants such as Adonis amurensis, and thirteen kinds of edible plants such as Ligularia fischeri are faced potentially in endangered from the outrageous collections by the local peoples. The Action Plan for the conservation management of the area which enables sustainable use by the local peoples must be established in the near future.

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The Vascular Plants in Mt. Bohyeon, Gyeongbuk, Korea (보현산(경북)의 관속식물상 연구)

  • Park, Kyu Tae;Choi, Kyoung Su;Son, Ogyeong;Lee, Eun Mi;Kim, Hae Sik;Boo, Da Un;Park, SeonJoo
    • Korean Journal of Plant Resources
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    • v.28 no.2
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    • pp.193-216
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    • 2015
  • This study was carried out to investigate the vascular plants of Mt. Bohyeon (Gyeongbuk). The vascular plants were collected 22 times and summarized as 589 taxa, including 105 families, 327 genera, 522 species, 11 subspecies, 48 varieties and 8 forms respectively. Among them, 13 Korean endemics, 10 red list of vascular plants, 2 endangered plants and 83 specially designated plants by the Ministry of Environment were included respectively. The naturalized plants were 37 taxa and the naturalized ratio was 6.41 of 589 taxa. Usage of 589 taxa were consists of 240 taxa (40.1%) of edible plants, 205 taxa (34.2%) of medicinal plants, 62 taxa (10.3%) of ornamental plants, 213 taxa (35.6%) of pasture plants, 15 taxa (2.5%) of timber plants, 8 taxa (1.3%) of fiberplants, and 3 taxa (0.5%) of industrial plants.

Reconsideration of Rare and Endangered Plant Species in Korea Based on the IUCN Red List Categories (IUCN 적색목록 기준에 의한 환경부 멸종위기 야생식물종에 대한 평가)

  • Chang, Chin-Sung;Lee, Heung-Soo;Park, Tae-Yoon;Kim, Hui
    • The Korean Journal of Ecology
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    • v.28 no.5
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    • pp.305-320
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    • 2005
  • Recently 64 species in Korea have been ranked as rare and endangered taxa by the Ministry of Environment using two categories, I and II. The original threat categories produced by the Ministry of Environment were developed to provide a standard for specifying animals and plants in danger of extinction and has been influential sources of information used in species conservation in Korea. However, the criteria by Ministry of Environment were applied to the whole taxa only by regional boundaries, especially in South Korea, rather than international context, and it also lacked an explicit framework that was necessary to ensure repeatability among taxa because of the absence of quantitative criteria to measure the likelihood of extinction. The World Conservation Union (IUCN) has developed quantitative criteria for assessing the conservation status of species. The threatened species categories, the 2000 IUCN Red List, proposed by SSC (Species Survival Commission) of IUCN have become widely recognized internationally. Details of threatened Korean plants, identified by applying the IUCN threat categories and definitions, were listed and analyzed. The number of species identified as threatened was only 34 out of 64 taxa (48.4%), while the rest of taxa were rejected from the original lists. Many of the species (51.6%, 33 taxa) excluded from the original list proposed by Ministry of Environment do not qualify as Critically Endangered, Endangered or Vulnerable because these taxa were widely distributed either in Japan or in China/far eastern Russia and there is no evidence of substantial decline in these countries. An evaluation of taxa in Korea has been carried out only based on subjective views and qualitative data, rather than quantitative scientific data, such as rates of decline, distribution range size, population size, and risk of extinction. Therefore, the national lists undermine the credibility of threatened species lists and invite misuse, which have been raised by other cases, qualitative estimate of risk, political influence, uneven taxonomic or geographical coverage. The increasing emphasis on international responsibilities means that global scale is becoming more significant. The current listings by Environment of Ministry of Korea should be challenged, and the government should seek to facilitate the resolution of disagreements. Especially the list should be flexible enough to handle uncertainty and also incorporates detailed, quantitative data. It is suggested that the highest priorities for the Red List should be given to endemic species in Korea first. After setting up the list of endemic species to Korea, quantitative data on population size and structure, distributional range, rated of decline, and habitat fragmentation should be collected as one of long term projects for the Red list categories. Transparency and accountability are the most important key factors. Also, species assessors are named and data sources referenced are required for the future objective evaluations on Korean plant taxa.

A Reconsideration of the List of National Endemic Plants (appendix 4-1) Under the Creation and Furtherance of Arboretums Act Proposed by Korea Forest Service (산림청 수목원 조성 및 진흥에 관한 법률의 특산식물 목록의 재고)

  • Park, Soo Kyung;Gil, Hee-Young;Kim, Hui;Chang, Chin-Sung
    • Journal of Korean Society of Forest Science
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    • v.102 no.1
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    • pp.38-58
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    • 2013
  • The existence of endemism in many parts of the world is an important factor for conservationists. Conservation can only be carried out under national legislation, and national endemics, which have very limited ranges, fully depend on the effort and success of conservation. A total of 523 vascular plant taxa were listed in the latest national checklist by Ministry of Environment in 2005, while the 'Creation and Furtherance of Arboretums Act' including a national endemic list (appendix 4-1) was established by Korea Forest Service and was legislated as a law in late 2011. This legislation by Korea Forest Service on endemism of Korean vascular plants have required much attention because of discrepancies of nomenclature, taxonomic bias and inflation. Examining data for both lists proposed by Ministry of Environment and Korea Forest Service, of the total of 360 legislated taxa, around 286 taxa are shared with the list of Ministry of Environment, of which about 80% have been found as common taxa. Around 67(18.7%) are typographic errors, and 14 taxa (3.9%) are recorded as illegitimate and invalidly published names. Through this analysis 12 taxa (3.4%) were found in China as well as in Korea and these are thought to be non Korean endemic taxa. Taken together, the legislated list displayed 1/4 (24.9%) errors out of the total list. Only 59 taxa (16.5%) are identified as national endemic species. The remainder are either unresolved candidates (73 taxa, 20.4%) or synonyms (196 taxa, 54.7%) status. It must be noted, that the concept of endemism very much depends on the knowledge of the species concept, taxonomic bias and geographical range of a species. Also, the most major nomenclatural problem tend to be more stable if the information on database about Korea Plant Name, which is managed by Korea National Arboretum are well updated year to year. These exaggerated numbers underscore the urgency for regional conservation planning and implementing effective strategies to preserve these real endemic taxa into the future.