• Title/Summary/Keyword: Taxonomic Study

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Conceptions of Play and Work Held by Mothers of Preschool Children in Korea (한국 유아원 아동 어머니의 놀이와 일의 개념-질적인 접근)

  • Nam, Hyun Sook
    • Korean Journal of Child Studies
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    • v.13 no.2
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    • pp.229-240
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    • 1992
  • Although play is a key element in child development, little research has been done on how play is conceptualized by adults directly involved with children on a daily basis. The purpose of the study was to determine meanings of the concept "play" held by mothers of preschool children in Korea. Specifically, the study sought to determine Korean mothers' conceptions of the nature and functions of play, and their conceptions of play in contrast to work. An open-ended/semi-structured interview instrument was constructed to generate research data. Interview questions focused on three content categories: (1) the nature of play, (2) the functions of play, and (3) conceptions of work. Questions in each content category consisted of four distinct types: (1) experience/behavioral, (2) opinion/value, (3) feeling, and (4) knowledge. The instrument was pilot-tested with two subjects, revised, and administered to eleven mothers of preschool children. Interview data were subjected to domain and taxonomic analyses. Analyses yielded two principal themes: (1) Play is viewed as an intrinsically motivated and pleasurable activity; (2) while play and work could be consonant, the values inherent in play and work are generally in opposition.

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A Taxonomic Study on Genus Moina (Branchiopoda, Cladocera, Moinidae) of Korea (한국산 Moina 속 (새각 강, 지각 목, 모이나물벼룩 과) 물벼룩류의 분류학적 연구)

  • Yoon, Seong-Myeong;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • v.8 no.1
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    • pp.89-106
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    • 1992
  • The specimens belonging to genus Mina collected from various freshwater habitats at 65 localties in South Korea during the period from July 1983 to July 1991 were examined. As a result of the present study, three species were identified and one of which was newly reported from Korea. We provided a key to four species of the genus Moina occurring in Korea and described and illustrated males and ephipoidal females poorly known in Korea as well as parthenogenetic females of the three species.

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New records of genus Scenedesmus (Chlorophyceae) found in Korea

  • Kim, Yong Jae
    • Journal of Ecology and Environment
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    • v.38 no.2
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    • pp.213-227
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    • 2015
  • This study summarizes the taxonomic notes and distribution of 13 taxa of the genus Scenedesmus (Chlorophyceae) collected from several swamps, reservoirs, and rivers throughout South Korea from 2012 to 2014. In this study, light microscopy images of all 13 taxa are presented and briefly discussed with regard to their taxonomy, distribution, and ecology and environmental factors of occurrence sites. All 3 subgenera (subgenus Scenedesmus 1 taxon; subgenus Acutodesmus 2 taxa; subgenus Desmodesmus 10 taxa) are newly described in Korean freshwater algal flora: S. linearis, S. acuminatus var. elongatus, S. acuminatus var. tetradesmoides, S. carinatus, S. denticulatus var. disciformis, S. gutwinskii var. heterospina, S. helveticus f. bicaudatus, S. lefevrei, S. oahuensis var. clathratus f. longiclathratus, S. oahuensis var. clathratus, S. pannonicus, S. polydenticulatus, and S. tenuispina.

Analysis of Bacterial Community Structure in Bulk Soil, Rhizosphere Soil, and Root Samples of Hot Pepper Plants Using FAME and 16S rDNA Clone Libraries

  • Kim, Jong-Shik;Kwon, Soon-Wo;Jordan, Fiona;Ryu, Jin-Chang
    • Journal of Microbiology and Biotechnology
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    • v.13 no.2
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    • pp.236-242
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    • 2003
  • A culture-independent and -dependent survey of the bacterial community structure in the rhizosphere and soil samples from hot pepper plants was conducted using 16S rDNA clone library and FAME analyses. Out of the 78 clones sequenced, 56% belonged to Proteobacteria, 4% to high G+C Gram- positive group, 3% to Cytophyga-Flexibacter-Bacreroides, and 32% could not be grouped with any known taxonomic division. Among the 127 FAME isolates identified, 66% belonged to low G+C Gram-positive bacteria (Baciilus spp.) and 26% to high G+C Gram-positive bacteria. In a cluster analysis, the results for both methods were found to be strikingly dissimilar. The current study is the first comparative study of FAME and 165 rDNA clonal analyses performed on the same set of soil, rhizosphere soil, and root samples.

A Study on the Fine Structure of the Marine Diatoms of Korean Coastal Waters - Genus Thalassiosira 3

  • Lee, Jin-Hwan;Park, Joon-Sang
    • ALGAE
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    • v.23 no.3
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    • pp.187-199
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    • 2008
  • A study on the fine structure of the marine diatom Thalassiosira has been carried out during the periods from January 2007 to March 2008 in Korean coastal waters. As the third series of the Thalassiosira species, a fine structure, description, distribution and taxonomic remarks of the six Thalassiosira species were observed by means of light microscope and scanning electron microscope. The critical features of Thalassiosira species were a shape of external tubes of marginal strutted processes and labiate process. Six species showed each different shape of external tubes, marginal strutted processes and labiate process. The shape of external tube was divided into five types: T shape of Thalassiosira curviseriata, small-rounded shape of T. lundiana, double-layer form and flame shape of T. nordenskioeldii, tulip shape of T. punctigera and tooth-shape of T. tenera. This external character may be able to key character for positive identification of the Thalassiosira species. Of these Thalassiosira lundiana, T. minuscula and T. tenera were new records for Korean coastal waters.

Taxonomic Study on the Lichen Genus Coccocarpia (Lecanorales, Ascomycota) in South Korea

  • Wang, Xin Yu;Wei, Xin Li;Han, Keon-Seon;Koh, Young-Jin;Hur, Jae-Seoun
    • Mycobiology
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    • v.35 no.4
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    • pp.174-179
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    • 2007
  • Three species of Coccocarpia have been reported from Korean Peninsular. However, there was no revisional study on this genus before. After careful examination of the specimens deposited in the Korean Lichen Research Institute (KoLRI) and collected from main mountain areas of Korea, two species of Coccocarpia, C. palmicola and C. erythroxyli, have been revealed to occur and confirmed in South Korea. The presence and absence of isidia and apothecia are the most important characters for the South Korean species. We provide the detailed description and illustration of the available two species. A key to the species is also provided.

Taxonomic Study on Pemphigidae(Aphidoidea: Homoptera) from Korea (한국의 면충과 (매미목:진딧물상과)에 관한 분류학적 연구)

  • 이원구;서홍렬;황창연
    • Animal Systematics, Evolution and Diversity
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    • v.9 no.2
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    • pp.237-249
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    • 1993
  • This study on Pemphigidae was based on the specimens collected from May 1989 to April 1993, at 16 localities of southern part of Korean Penninsula. As a result, 11 species of 7 genera were identified. Of these, four species (Colophina zelkovae, Prociphilus chaenomelis, Tetraneura pumilae, T. iriensis) are new to science. These four species were described and drawn.

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Taxonomic Study of Dorylaimoidea (Nematoda : Dorylaimida) from Korea (한국산 창선충 상과의 분류학적 연구)

  • ;E. Geraert
    • Korean journal of applied entomology
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    • v.36 no.1
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    • pp.1-29
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    • 1997
  • A study on the Dorylaimoidea from Korea yielded the following fifteen species belonging to 10 different genera; Dorylaimus stagnalis, Laimydorus siddiqi, Mesodorylaimus usitatus, Sectonema basilgoodeyi, Labronema hyalinum, L. nepalense, L. vulvapapillatum, Eudorylaimus carteri, E. pseudocarteri, Ecumenicus monhystera, Discolaimus major, Enchodelus longidens, E. hopedorus, E. macrodorus, Oriverutus pagarus. They represent four families: Dorylaimidae, Aporcelaimidae, Qudsianematidae, Nordiidae.

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Neotypification of Veronica pusanensis (Scrophulariaceae)

  • Jang, Hyun-Do;Noh, Tae-Kwon
    • Journal of Species Research
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    • v.9 no.4
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    • pp.375-376
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    • 2020
  • A type specimen is the specimen originally used to name a new species; thus, it is one of the most significant materials for taxonomic study. In our study on the inventory and management of endemic species in Korea, we checked the type materials for Pseudolysimachion pusanensis (Y. Lee) Y. Lee, combination name Veronica pusanensis Y. Lee, recorded as deposited at the herbaria of the Ewha Womans University and the National Institute of Biological Resources, and failed to find any specimens. Thus, we concluded that all type specimens of V. pusanensis have since been misplaced. According to articles 9.11 and 9.13 of the International Code of Nomenclature for algae, fungi, and plants, it is necessary to select a neotype if the holotype is missing and no other original material exists. Therefore, we designate the neotype maintained in the herbarium of the National Institute of Biological Resources of the Republic of Korea.

The Systematic Study on the Freshwater Rotifera of Korea (한국산 담수 윤형동물의 계통분류학적 연구)

  • Kim, Won;Moon, Seung-Yeo;Song, Min-Ok
    • The Korean Journal of Zoology
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    • v.34 no.4
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    • pp.548-556
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    • 1991
  • The rosters collected loom various keshwater habitats, such as rivers, steams, lakes, ponds, and rice paddies at twenty-four different sites in Korea were investigated. Eleven species and/or subspecies in three families of monogonont freshwater rotifers were identified, of which two species, Notholco marina and Lecane (Monostyra) stenroosi stenroosi were new to Korea. A key is presented for the twenty-two Korean species and/or subspecies which have been described by the previous taxonomic reports and the present study.

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