• 제목/요약/키워드: Six species

검색결과 1,901건 처리시간 0.031초

A report of three unrecorded Ellobiid species (Gastropoda, Eupulmonata) from Korea

  • Lee, Jun-Sang;Lee, Yong-Seok
    • 한국패류학회지
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    • 제31권4호
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    • pp.323-326
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    • 2015
  • Three species of Ellobiid molluscs collected from Korea were identified as Auriculastra duplicata (Pfeffer, 1854), Laemodonta siamensis (Morelete, 1875) and Melampus (Pira) flavus (Gmelin, 1791). This is the first record from the Korea, providing a description of the species with illustration for the shell morphology. Including the new recorded in this study, the family Ellobiidae contained six genera and 13 species in the Korea.

한국산 장고말속(녹조식물문) 6분류군의 추가 (An Addition of 6 Taxa of the Genus Cosmarium (Chlorophyta) in Korea)

  • 박정훈;이옥민
    • ALGAE
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    • 제19권2호
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    • pp.139-144
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    • 2004
  • Six taxa of unrecorded Korean species of genus Cosmarium were collected from several freshwater sites of South Korea in 2003. They were 3 species and 3 varieties of Genus Cosmarium. Genus Cosmarium of Korea was reported to totally 273 taxa 125 species, 113 varieties and 35 forms including this study.

Taxonomic survey on ciliate diversity in eastern area of Kangwon-province, Korea: Brief records of fifteen species unrecorded from Korea

  • Kim, Ji-Yeong;Jung, Jae-Ho
    • Journal of Species Research
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    • 제5권3호
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    • pp.333-342
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    • 2016
  • Based on the taxonomic survey to uncover the ciliate diversity in the eastern Kangwon-province, twenty-six species were identified from moss-covered soils and assigned to 5 classes, 9 orders, 12 families, and 15 genera. Of these, fifteen species are first records from Korea, and brief remarks with photographs were provided.

낙동강에서 채집된 Gnorimosphaeroma 속(잔벌레쥐) 등각류의 1 신종 및 이 속의 한국산 종에 대한 검색표 (A New Species of the Genus Gnorimosphaeroma (Crustacea, Isopoda,Sphaeromatidae) from the Naktong River, with a Key to the Korean Species of the Genus)

  • 권도헌;김훈수
    • Animal Systematics, Evolution and Diversity
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    • 제3권1호
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    • pp.51-56
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    • 1987
  • 낙동강 하구에서 채집된 등각류 1종을 Gnorimosphaeroma naktongense(국명: 낙동잔벌레)로 명명하여 기재한다. 또 본 종을 포함한 한국산 Gnorimosphaero-ma속 전 6종에 대한 검색표를 제시한다.

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애기박쥐과에 속하는 한국산 박쥐류 6종에 대한 핵형학적 연구 (A Karvotvpic Studv on Six Korean Vespertilionid Bats)

  • 유동호;윤명희
    • 한국동물학회지
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    • 제35권4호
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    • pp.489-496
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    • 1992
  • The karyotypes of 4 Korean Myotis species (M. mystucinus gracilis, M. jormous tsuensis, M. duubentonii ussuriensis and M. macrodoctvlusp and 2 Pipistrelfus species (p. coreensis and p. abramusl belonging to the Vespertilionidae were examined. The 4 Mvotis species had the karyotypes of 2n : 44 with FN : 50 (M. m. gracilis and M. f. tsuensisl or 52 (M. d. ussuriensis and M. mncrodactylus). Furthermore the karyotype of R obrumus (2n : 26, FN : 441 seemed advanced compared with that of U coreensis (2n : 44, FN : 501 which is similar to the original karyotype of Mvotis species (2n : 44, FN : 50).

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Interspecific and Intraspecific Variation in Pollen Grains of Quercus Subgenus Lepidobalanus Endl. in Korea

  • Kim, Sang-Yong;Kim, Kae hwan
    • Plant Resources
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    • 제5권1호
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    • pp.17-28
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    • 2002
  • Palynological characters such as pollen grain polar axis length (PL), pollen equatorial diameter (ED), colpus length, colpus width, and P/E ratio of six species of Quercus subgenus Lepidobalanus Endl. from Korea were studied. A significant interspecific variation, unequal distances between the species, and various degree of intraspecific variations were found. The taxonomic value of the pollen morphology parameters measured was found to vary according to species. These results suggest a possible relationship between parameters measured and ploidy level of the Quercus species studied.

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천남성(天南星) 유전자 감별을 위한 DNA 바코드 분석 및 Marker Nucleotide 발굴 (Identification of Marker Nucleotides for the Molecular Authentication of Arisaematis Rhizoma Based on the DNA Barcode Sequences)

  • 김욱진;이영미;지윤의;강영민;최고야;김호경;문병철
    • 대한본초학회지
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    • 제29권6호
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    • pp.35-43
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    • 2014
  • Objectives : Official Arisaematis Rhizoma is described only three species, Arisaema amurnse, Arisaema erubescens, and Arisaema heterophyllum, in national Pharmacopoeia. However, other Arisaema species, Arisaema ringens, Arisaema takesimense and Arisaema serratum, also have been distributed as an inauthentic Arisaematis Rhizoma in the herbal market. To develop a reliable molecular authentication method for Arisaematis Rhizoma in species level, we analyzed DNA barcode regions using six Arisaema species. Methods : Thirty-eight samples of six Arisaema plants species (A. amurense, A. amurense f. serratum, A. heterophyllum, A. takesimense, and A. serratum) were collected from different habitate and nucleotide sequences of DNA barcode regions (rDNA-ITS, matK, and rbcL gene) were analyzed after PCR amplification. The species-specific sequences and phylogenetic relations were estimated using entire sequences of three DNA barcodes based on the analysis of ClastalW and UPGMA, respectively. Results : The comparative analysis of DNA barcode sequences were revealed inter-species specific nucleotides to distinguish the medicinal plant of Arisaema Rhizoma in species levels excluding between A. amurense and its subspecies (A. amurense f. serratum) and A. takesimense and A. serratum, respectively. However, we obtained sequence differences enough to discriminate authentic and inauthentic Arisaematis Rhizoma. Therefore, we suggest that these SNP type molecular genetic markers were an reliable method avaliable to identify official herbal medicines. Conclusions : These marker nucleotides could be useful to identify the official herbal medicines by providing definitive information that can identify original medicinal plant and distinguish from inauthentic adulterants and substitutes.

도심하천과 자연하천의 저서성 대형무척추동물 군집 구조 (Community Structure of Benthic Macroinvertebrate in the Urban and Nature Stream)

  • 신석민;최일기;서을원;이종은
    • 한국환경과학회지
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    • 제22권12호
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    • pp.1551-1559
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    • 2013
  • This study was conducted to compare benthic macroinvertebrate communities of urban stream and nature stream in Daegu-si, Gyeongju-si, Gyeongsan-si, Andong-si, and Cheongsong-gun. The survey was carried out with 12 points in total six points for urban stream, six points for nature stream from Sept. 2011 to July 2012. In the urban stream were 33 species belonged to 24 families, 11 orders, 7 classes and 4 phyla while in the nature stream were 73 species belonged to 38 families, 12 orders, 5 classes and 4 phyla. In general, species diversity indices and species richness indices appeared low in urban stream but dominance indices was high. Functional feeding groups and Habitat Oriented Groups appeared comparatively simple in urban stream rather than nature stream. As a result of analysis of community stability, species included to area I and area III equally appeared in nature stream while species included to area I mostly appeared in urban stream. An analysis of the correlation between the population density and the number of species, the population number and biological indicators such as DI, H', RI, and ESB revealed that there was a significant correlativity with the diversity index and a very high correlativity with the number of species, abundance index and the ESB. On the other hand, the population number and the dominance index did not reveal any correlativity. For indicator species, Hydroptila KUa, Physa acuta appeared in urban stream while Paraleptophlebia chocolata, Epeorus pellucidus appeared in nature stream.

합천호의 어류상과 어류 군집구조 (Ichthyofauna and Structure of the Fish Community in Hapcheon Lake on the Hwang River)

  • 이충렬
    • 한국어류학회지
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    • 제17권2호
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    • pp.131-141
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    • 2005
  • 본 연구는 2004년 5월부터 2005년 2월까지 합천호를 중심으로 댐 내부에서 4곳, 댐 상 하류 하천에서 각각 1곳씩 모두 6개 지점을 중심으로 어류상을 조사 분석하였다. 그 결과 모두 12과 31속 36종으로 확인되었다. 본 조사 기간동안에 출현한 어류 가운데 우점종으로는 H. eigenmanni로 전체 어류의 28.4%의 출현률을 나타내었고, 아우점종으로는 H. labeo가 24.1%였다. 또한 출현한 어류 중 생산량이 가장 높은 어종은 H. labeo로서 전체의 36.5%의 비중을 차지하였고, 다음으로는 H. eigenmanni 22.3%, C. carpio 7.5%, H. nipponensis 6.9%의 순이었다. 합천댐 일대에서 종별 출현빈도가 가장 높은 분류군은 Cyprinidae 어류가 24종으로 전체의 66.7%였고, 그 다음으로는 Cobitidae와 Centropomidae가 각각 2종씩이고, 나머지는 1종씩이었다. 본 조사 구역에서 출현하는 우리나라의 특산어종은 모두 10종, A. koreensis, C. splendidus, S. gracilis majimae, S. chankaensis tsuchigae, M. yaluensis, H. eigenmanni, N. multifasciata, L. mediadiposalis, C. herzi, O. platycephala 등이며, 이 중 H. eigenmanni와 C. herzi는 출현 개체수가 많았으나, 그 외의 종은 비교적 희소하였다. 본 합천댐에서 출현하는 어류 중에서 외래어종은 C. carpio (Israeli), C. cuvieri, L. macrochirus이었고, 우리나라의 다른 하천에서 유입된 P. fulviraco가 확인되었다.

Verification on Cold-Tolerance of Some Fruit Trees as Species for Urban Greening Plants

  • Lee, Jin-Hee;Oh, Hee-Young;Kwon, O-Man
    • 한국환경과학회지
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    • 제26권10호
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    • pp.1155-1166
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    • 2017
  • This study selected commonly known species of fruit trees, and re-selected the species that endure the stress of extreme cold weather and physiologically restore themselves to the previous state until the following year. Then we could go ahead to propose the species that were appropriate as urban greening plants in weather condition of any part of the country. To do this, we conducted an experiments for six species of fruit trees based on the preference of the general public and recommendation of the experts; Morus alba (English name: mulberries), Diospyros kaki (English name: Persimmon), Prunus persia (English name: Peach), Elaeagnus umbellata var. coreana (English name: Korean Autumn Olive), Malus domestica 'Alps Otome' (English name: Alps Otome), and Prunus mume (English name: Blue Plum). The experiment verifies whether the trees survive without any stress from the cold weather under the national climate conditions (one in the suburbs of Seoul: Yongin city, one in the central Chungcheong region: Daejeon city, and in the southern Gyeongsang region: Jinju city in Korea). The experiment lasted for a year from August 2016 to August 2017. The levels of electrolytic efflux, chlorophyll content, plant height, fresh weight, and dry weight were measured four times (on August of 2016, January, February, and August of 2017) for each tree planted bare ground outdoors. Results showed that Diospyros kaki, Prunus persia, and Malus domestica 'Alps Otome' were proven durable and resistant to winters of all three areas (one in the suburbs of Seoul: Yongin city, one in the central Chungcheong region: Daejeon city, and in the southern Gyeongsang region: Jinju city in Korea). Especially, the increase of chlorophyll content and the reduction of electrolytic efflux were noticeable in Prunus persia than in the other two species, proving itself as the most cold-tolerant among the six species used in the experiment. In addition, interpreting from the physiological restoration data of one-year span before and after getting through winterer, Prunus persia was proven to be the most cold-tolerant species.