• Title/Summary/Keyword: New habitat

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Wetland Assessment and Improvement of Evaluation Index Using Rapid Assessment Method (RAM) (신속평가방법(Rapid Assessment Method)을 이용한 습지평가 및 평가항목의 개선)

  • Choi, Jong-Yun;Kim, Seong-Ki;Yun, Jong-Hak;Joo, Gea-Jae
    • Korean Journal of Ecology and Environment
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    • v.50 no.3
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    • pp.314-324
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    • 2017
  • In order to consider application and evaluation of value and class of domestic wetland, we investigated 146 wetlands located Gyeongsangnam-do using Rapid Assessment Method (RAM). We utilized Self-Organizing-Map (SOM) to analysis relationship between evaluation index and land coverage ratio surrounding wetland. Among total 8 evaluation index, 'Fish and herptile habitat' and 'Aesthetic value' were higher, most of the wetlands evaluated as 2, 3 grade. Result of SOM analysis, 'vegetation diversity and wild animals habitat' is negatively related to the 'Fish and herptile habitat', because fishs were not prefer habitat excessively occupied by plant. However, high vegetation diversity can be support high score of 'Aesthetic' in wetland. Also, 'Erosion control' and 'Flood storage and control' were closely related, wetlands with high score of 'Erosion control' have high score of 'Flood storage and control'. When applied RAM in domestic wetland, six out of 6 evaluation index induced biased results, the index of RAM need a little change as some new or modify evaluation index. Therefore, we consider to need adjustable, subdivide, and actualization of some evaluation index for application of RAM in domestic wetlands. Consequently, wetland assessment and class using RAM can be utilized as important indicate for conservation and management of wetland, and contributed greatly to maintain biodiversity include to endangered species by preserving remaining wetland.

A new species of Huperzia (Lycopodiaceae) from Jeju Island, Korea: Huperzia jejuensis (한국(제주도)의 1신종: 긴다람쥐꼬리)

  • Lim, Jina;Sun, Byung-Yun
    • Korean Journal of Plant Taxonomy
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    • v.45 no.1
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    • pp.17-21
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    • 2015
  • A new species belonging to Lycopodiaceae Mirb. Huperzia Bernh. s.l. is described and illustrated: Huperzia jejuensis B.-Y. Sun & J. Lim. H. jejuensis has been considered conspecific with H. integrifolia (Matsuda) B. ${\emptyset}$llg. ex. Z. Satou, but it is clearly distinguished by the characteristics of linear-lanceolate leaves with parallel margins from the base to the mid-part, minute dentate margins from the mid-part to the end of the leaf, and cuspidate gemma apex. Because the habitat of the new species was confined to Jeju Island, 'jejuensis' was chosen as the specific epithet of the scientific name of the new taxon.

New Records of Xylaria Species in Korea: X. ripicola sp. nov. and X. tentaculata

  • Kim, Chang Sun;Jo, Jong Won;Kwag, Young-Nam;Oh, Soon-Ok;Lee, Sle-gee;Sung, Gi-Ho;Han, Jae-Gu;Oh, Junsang;Shrestha, Bhushan;Kim, Sang-Yong;Shin, Chang-Ho;Han, Sang-Kuk
    • Mycobiology
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    • v.44 no.1
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    • pp.21-28
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    • 2016
  • During a Korean mushroom diversity survey from 2011 to 2014, we found one new Xylaria species (X. ripicola sp. nov.) and one Xylaria species that had not been previously observed in Korea (X. tentaculata). To confirm the phylogenetic placement of the new species, we conducted a phylogenetic investigation based on internal transcribed spacer regions of ribosomal DNA sequences. Additionally, the new species, X. ripicola, was subsequently analyzed for RNA polymerase II subunit sequences. We also evaluated the macroscopic and microscopic features of this species. Herein, X. ripicola is described as a new species that was collected from a natural beach habitat and X. tentaculata is formally reported as newly found in Korea.

A New Euthyplociid Burrowing Mayfly (Ephemeroptera: Euthyplociinae, Polymitarcyidae) from Vietnam

  • Nguyen, Van-Vinh;Bae, Yeon-Jae
    • Animal cells and systems
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    • v.7 no.4
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    • pp.279-282
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    • 2003
  • A new euthyplociid burrowing mayfly (Polymitarcyidae, Ephemeroidea, Ephemeroptera), Polyplocia orientalis n. sp., from Vietnam is described with larval habitus and line drawings of mouthparts. The larva of the species is characterized by the mandibular tusks that bear numerous hairlike and stout setae on their dorsal and lateral surfaces and by the apical process of foretibiae that is nearly one-fourth the length of foretarsi. Its habitat and biological data and taxonomic remarks are provided. The burrowing mayfly subfamily Euthyplociinae is reviewed from a historical perspective.

A Study on the methods for analysing character of townhouse for improvement of residental environment in korea (주거환경 향상을 위한 타운하우스의 특성 분석에 관한 연구)

  • Lee, Dong-Eun;Chung, Jae-Yong
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2006.11a
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    • pp.426-431
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    • 2006
  • Townhouse takes both private housings' and apartments' strengths as its own and forms a new style of house planning. It is highly convenient in maintenance and complement, also satisfying the residents with its independence and refundability. Currently, metropolitan area in Korea being the ignition of the townhouse planning, the gradual housing site development in metropolitan area is laying a foundation for further developments throughout Korea. Through amendment of legislation and qualitative upgrade of habitat, standard about new residence should be readied for activating of townhouse in korea. Therefore This research examines several residence types to secure diversification of residence type and good quality of residence place, introduce the townhouse that developed fast in internal recently and make a planed option for activating in korea.

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Curtain Wall Façades on the New Generation of Supertall Buildings Present and Future Directions

  • Oh, Sae Hwang
    • International Journal of High-Rise Buildings
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    • v.9 no.2
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    • pp.113-125
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    • 2020
  • Beginning in the late 19th century, construction of skyscrapers spread throughout Chicago, New York City, and then the world as demand of space in buildings and increase of cost of land. With this change curtain wall systems have evolved to be more visually complex; these unique profiles of the skyscraper became powerful images and symbols of our cities. A curtain wall is defined as usually aluminum-framed wall containing in-fills of glass and metal panels. The framing is attached to the building structure and does not carry the floor or roof loads of the building.

Distribution of Carex nakasimae Ohwi, a Korean endemic sedge (Cyperaceae)

  • CHUNG, Kyong-Sook;IM, Hyoung-Tak;MASAKI, Tomomi;HOSHINO, Takuji;LEE, Chang-Shook
    • Korean Journal of Plant Taxonomy
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    • v.50 no.2
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    • pp.239-246
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    • 2020
  • Carex nakasimae Ohwi (Cyperaceae) is an endemic species on the Korean peninsula. This study reports a new locality of the species, updating the distribution map. A new population of the species was found during field surveys in 2014 in a small swamp in Haman-gun, Gyeongsangnam-do province, located in the southeastern part of the Korean peninsula. In the flowering and fruiting periods of the species, the population is associated with ca. 91 vascular plant taxa from 40 families. To conserve the endemic species, maintaining the habitat is critical. Furthermore, taxonomic and phylogenetic positions of the species should be clarified to establish biological conservation strategies for the rare, endemic C. nakasimae.

New Records of the Diatoms (Bacillariophyta) in the Brackish and Coastal Waters of Korea

  • Park, Joon Sang;Yun, Suk Min;Lee, Sang Deuk;Lee, Joon Baek;Lee, Jin Hwan
    • Korean Journal of Environmental Biology
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    • v.35 no.3
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    • pp.215-226
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    • 2017
  • A study on indigenous diatoms was carried out at 10 sites from May 2014 to December 2016 in marine and freshwater in Korea. Seventeen species of diatoms are new to Korea and they are divided into 3 classes, 4 subclasses, 10 orders, 14 families, and 16 genera. The nomenclatures, references, dimensions, specimens examined, local habitat, distribution in Korea, and photograph are reported here. Seventeen species found in marine, freshwater, and brackish water showed species-specific habitats.

Population dymamics of apodemus agrarius inhabiting in the vicinity of new urbanizing at pundang area (盆唐 新市街地 開發에 따른 周邊地域 野鼠類의 生態)

  • Lee, Hai-Poong;Sang-Hun Kim;Meung-Hai Kim;Chong-Ⅱ Lee
    • The Korean Journal of Ecology
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    • v.15 no.2
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    • pp.201-208
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    • 1992
  • Wild rats inhabiting pundang area where urbanized since 1989 were there species including apodemus agrarius. amoung them, a. agrarius was dominant as shown in other areas of korea. They were captured much more 85.00$\pm$9.46 per ha., 64.40$\pm$7.50 per ha. respectively in may and August than inother seasons all through the year. The proportion of female and male was in the ratio of 2 to 1 regardless of the season and habitat, and this species was inhabiting more at oak forest community in summer and at hill-upland boundary in winter than at other habitats in the same season. The change of environment by new urbanizing did not affect in density of wild rats. In general, seasonal percentage of capture in different habitats inceased in accordance with high density.

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Caloglossa beccarii (Delesseriaceae, Rhodophyta) from freshwater rivers in Kerala, India, a critical new record

  • West, John A.;Kamiya, Mitsunobu;Ganesan, E.K.;Louiseaux-de Goer, Susan;Jose, L.
    • ALGAE
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    • v.30 no.3
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    • pp.207-216
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    • 2015
  • Caloglossa species occurs in freshwater streams around Southest Asia. We report it from 2 different riverine sites in Kerala, India. Tetrasporangiate plants were observed in field collections from the Periyar River and Chalakkudy River. The Chalakkudy isolate did not reproduce in culture but the Periyar isolate developed abundant tetrasporangial sori in culture. Many spores were discharged and most were abortive, but some germinated normally, sporelings forming male gametophytes with numerous spermatangial sori and females with many procarps, viable carposporophytes and some nonfunctional (no carpospores) pseudocystocarps. Some carpospores germinated forming new tetrasporophytes. Molecular evidence (28S rDNA and rbcL) placed the Indian specimens close to C. beccarii and C. fluviatilis. Considering the freshwater habitat and morphology of vegetative thalli (blade shape, rhizoid arrangement, and number of rhizoid filament per cell), the Indian specimens should be assigned to C. beccarii.