• Korean Journal of Environment and Ecology
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• v.22 no.1
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• pp.59-65
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• 2008

This study is mainly focused on the mating of 9 couples of Eagle Owl Bubo bubo habitating in Paju, Ganghwa Island, Icheon, Sihwa Lake, Chungju. For this study, from 2005 to 2007, regular filming and mornitoring for the breeding ecology and copulation behavior of 9 couples of Eagle Owl in the nest and near area had been done. Clutches ranged in size from one to four eggs but averaged 2.27 eggs(n=15), hatching success rate was 71 %(n=34) and fledgling success rate was 83%(n=23). Through the filming and mornitoring, it was found that Eagle Owl continued to copulate each other even after hatching and kept its copulation until the chicks left their nest($7\sim8$ weeks after hatching). This copulation behaviour without fertilization seems to be done for confirming, maintaining and strengthening of pair-bond by the necessity of both male and female, and to aim at stable breeding of their chicks.

• Mycobiology
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• v.44 no.1
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• pp.14-20
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• 2016

A new species and 2 new records of lichen genus Buellia were discovered from Chuja-do Island in Jeju Province during a recent floristic survey: B. chujana X. Y. Wang, S. Y. Kondr., L. $L\ddot{o}k\ddot{o}s$ & J.-S. Hur sp. nov., B. halonia (Ach.) Tuck., and B. mamillana (Tuck.) W. A. Weber. The new species is characterized by a brown, areolate thallus, the presence of perlatolic acid, and a saxicolous habitat. Together with previously recorded species, 10 Buellia species were confirmed from Jeju-do Island. Among these species, 3 growing in the exposed rocky area contained xanthone (yellowish lichen thallus, UV + orange), indicating that production of xanthone in this genus might be a defense strategy against the harm of UV light. Although the genus Buellia has been thoroughly studied in Korea before, novel species have been discovered continuously, and large species diversity has been found in this crustose genus, even from a small rocky island. This study indicates that the coastal area harbors a vast number of crustose lichen species, and there is great potential to discover unknown lichens in the coastal rocky area in Korea.

• Journal of Wetlands Research
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• v.4 no.1
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• pp.1-19
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• 2002

This study was carried out to provide basic data for biodiversity about phytoplankton at crater of Cheju parasite volcano from March to November 2000. In the study area, we identified 6 class 12 order 23 family 44 genus 87 species 13 variety 2 forma, Which were totally 102 taxa. Those were composed of 40 taxa(39.2%) of Chlorophyceae, 34 taxa(33.3%) of Bacillariophyceae, 14 taxa(l3.7%) of Canophyceae, 9 taxa(8.8%) of Euglenophyceae, 3 taxa(3.0%) of Dinophyceae, 2 taxa(2.0%) of Chrysophyceae, respectably. Monthly appearance of phytoplankton were 74 taxa on March, 46 taxa on May, 21 taxa on August, 22 taxa on November. Biodiversity of phytoplankton by station was 54 taxa in Moolchat, 22 taxa in Moolyoungari, 26 taxa in Mooljangauri, 12 taxa in Dongsuack, 6 taxa in Asungseang, 27 taxa in Samiaorum, respectably.

• Korean Journal of Plant Taxonomy
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• v.33 no.4
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• pp.411-420
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• 2003

To examine the seed morphology in Korean Orobanchaceae, seeds of 5 species including 1 variety in five genera and one related taxon, Boschniakia himalaica Hook. f. & Thomson in Hook. f. from the Himalaya (7 taxa in total) were investigated by scanning electron microscopy (SEM). Two different seed types are recognized depending on three characters (e.g, .the seed size, seed coat structure and seed number per fruit). - Type I: size less than 1mm, seed coat structure reticulate and seed number per fruit more than ca. 1,000; Type II: size more than 1 mm, exotesta irregularly crested and seed number per fruit less than 1,000 (Lathraea japonicu Miq.). In Type I, three subtypes of exotesta internal surface pattern can also be classified; (1) Subtype Ia: reticulate - include irregularly striate (Ia') and deeply reticulate (Ia"), (2) Subtype Ib: foveolate, (3) Subtype Ic: smooth. Systematics application of the seed morphological data for the Korean Orobanchaceae is also briefly discussed.

• Journal of the Korean Society of Costume
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• v.63 no.5
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• pp.18-34
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• 2013

This paper examines the costumes of 18th century Joseon dynasty that appears in the writings of Lee Ok(李鈺, 1760~1815). The main characteristics that can be inferred about the clothing from his writings are as follows. 1) It suppose that the color of first grade(一品) official uniform was purple. The popular color for the bride's ceremonial dress was red. 2) It was likely that only bridesmaids or married women were allowed to wear Jokduri(ceremonial coronet). 3) White clothes were only preferred in Yeongnam-udo, whereas other regions mainly wore blue, which differs from the national preference for white clothes that was prevalent in the end of the Joseon dynasty. 4) Once cotton was harvested, it only took 5 days to convert it into cotton cloth and be sold on the market. Cotton cloth was one of the most important products during the latter half of the Joseon dynasty. It was common practice in markets to sell expensive costume materials as counterfeits or fungible goods with the intent to cheat. 5) The buddhist monk's hat is various that short cylinder form(短桶帽) and jade or gold headband button(玉圈 金圈) attached shape, etc. Consequently, Lee Ok's writing is a suitable reference for researching Joseon dynasty clothing, since it includes detailed and various descriptions of everyday clothing worn by strict noblemen, which is difficult to find elsewhere.

• Korean journal of applied entomology
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• v.51 no.4
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• pp.331-342
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• 2012

The effects of number of host plants and nectar plants on the number and diversity of butterflies were monitored and analyzed by simple and multiple regression from May 2008 to Sep 2009 in the Bubjusa region (Mt. Sokri, Boeun-gun, Chungcheongbuk-do), which was divided into four regions. The results demonstrate that the number of butterflies has a positive correlation with the number of host plant species, the number of nectar plant species, and the number of host plants multiple regression analysis. The number of butterflies also increased habitat area. However, the butterfly species number and diversity index showed lower correlation with the number of host plants and the area size of the divided region, respectively, when analyzed by simple regression. In addition, increased species diversity in a region with more diverse plant flora. These results suggest that the composite distribution of host and nectar plants with diverse plant flora is required for butterfly diversity and population preservation. Additionally, it also suggest that vegetation types complementarity all factors.

• Molecules and Cells
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• v.22 no.3
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• pp.323-327
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• 2006

DNA barcoding, an inventory of DNA sequences from a standardized genomic region, provides a bio-barcode for identifying and discovering species. Several recent studies suggest that the sequence diversity in a 648 bp region of the mitochondrial gene for cytochrome c oxidase I (COI) might serve as a DNA barcode for identifying animal species such as North American birds, insects and fishes. The present study tested the effectiveness of a COI barcode in discriminating Korean bird species. We determined the 5' terminus of the COI barcode for 92 species of Korean birds and found that species identification was unambiguous; the genetic differences between closely related species were, on average, 25 times higher than the differences within species. We identified only one misidentified species out of 239 specimens in a genetic resource bank, so confirming the accuracy of species identification in the banking system. We also identified two potential composite species, calling for further investigation using more samples. The finding of large COI sequence differences between species confirms the effectiveness of COI barcodes for identifying Korean bird species. To bring greater reliability to the identification of species, increased intra- and interspecies sampling, as well as supplementation of the mitochondrial barcodes with nuclear ones, is needed.

• International Journal of Industrial Entomology and Biomaterials
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• v.22 no.2
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• pp.65-74
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• 2011

The Scarites aterrimus (Coleoptera: Carabidae), is one of the carabid beetles dwelling exclusively on coastal sandy dunes. Habitat deterioration and equivalent activity have greatly concerned population declines in several species dwelling on the coastal sandy dunes. As a first step to establish long-term conservation strategy, we investigated the nation-wide magnitude and nature of genetic diversity of the species. As a first step, we sequenced a portion of mitochondrial COI gene, corresponding to "DNA Barcode" region (658 bp) from a total of 24 S. aterrimus individuals collected over nine sandy dunes belonging to four Korean provinces. The sequence analysis evidenced moderate to low magnitude of sequence diversity compared with other insect species distributed in Korean peninsula (0.152% to 0.912%). The presence of closely related haplotypes and relatively high gene flow estimate collectively suggest that there had been no historical barriers that bolster genetic subdivision. Population decline was postulated on the basis of several missing haplotypes that are well found in the species with a large population size. This interpretation is consistent with field observation of small population size in the coastal sandy dune habitats. The highest genetic diversity estimates were found in the coastal sand dune population of Seogwipo, Jeju Island, justifying a prior attention to the population, in order to sustain overall genetic diversity of the species. Further scrutinized study might be required for further robust conclusion.

• Journal of the Korea Convergence Society
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• v.9 no.12
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• pp.169-174
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• 2018

The museum, run by the archives, should show historical facts about the president through objective records that are not fully evaluated. The wartime atmosphere should maintain solemnity to highlight the evidential value of records about history, but include an interesting element that allows visitors to come comfortably. It would be possible to accommodate 360 viewers at the same time, and it would be an option to limit the number of visitors considering the operation of weekend events and the donor honor hall. In this study, we established and presented an image integration plan centered on the color plan and the signature plan. Although the real image integration plan is a case study that starts with symbols and logos and is conducted through an integrated and systematic system through the basic design and application design system, it is considered to be a meaningful study in terms of practical use.

• Korean Journal of Plant Taxonomy
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• v.48 no.4
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• pp.331-356
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• 2018

We investigated the flora of Jogyesan Mt. and discussed important vascular plants found on this mountain. In total, 16 separate field trips (20 days overall) were completed from 2013 to 2017. There are 577 taxa on Mt. Jogyesan, consisting of 115 families, 333 genera, 520 species, 8 subspecies, 45 varieties, and 4 forms. Eighteen endemic plants of Korea were found on Jogyesan Mt., including Carex okamotoi Ohwi, Coreanomecon hylomeconoides Nakai, and Stewartia koreana Nakai ex Rehder. There are 80 taxa of floristic regional indicator plants in total, including level V such as Adenophora palustris Kom. and level IV such as Dryopteris championii (Benth.) C. Chr. ex Ching, Gastrodia elata Blume, Lindera sericea (Siebold & Zucc.) Blume and Corylopsis glabrescens var. gotoana (Makino) T. Yamanaka. There also are 24 taxa of naturalized plants, including Ambrosia artemisiifolia L.