• Title/Summary/Keyword: Emergence ecology

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Developing Ecological Trails and Route Alignment for Revitalizing Rural Traditional Theme Village in Naegok-ri (농촌전통테마마을 활성화를 위한 내곡리 여산팔경 마을 생태탐방로 노선설정 방안 연구)

  • Lee, Seung-Joo;Han, Bong-Ho;Kang, Hyun-Kyung;Lee, Soo-Dong;Kim, Sang-Bum
    • Journal of Korean Society of Rural Planning
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    • v.15 no.3
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    • pp.61-79
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    • 2009
  • This study discusses developing ecological trails and route alignment in mountainous rural area. Through a process of ecological resources survey, ecological trails and route alignment has been established. Mainly, by focusing on ecological resources in rural areas, it was indifferent to their own ecological resource and charm to make it unique strengths. Based on survey the results, Natural ecology resources, there were the climate factor, surface, geological, terrain analysis. Furthermore, ecological resources were researched and analyzed the elements of it, distribution of resources, types, location, semantic analysis. The results are expressed on the map and recorded by taking pictures. Plant ecosystem, there were actual vegetation, land use, flora analysis. Wild animal ecosystem, it was checked and recorded on 1/1,000 map partition the emergence of wild birds, the number of species distributed by foraging guild, the emergence of amphibians, reptile, mammals and insect species. The site is chosen as rural theme village in 2007, base on their own rich ecological and landscape resources. Therefore, we carried out ecological trails and route alignment plan in accordance with analyzed the natural ecological resource and after setting up the basic goal, ecological trail has been composed and planting has done and direction.

Overwintering Ecology of the Peach Pyralid Moth, Dichocrosis punctiferalis in Southern Regions of Korea (남부지방에서 복숭아명나방 Dichocrosis punctiferalis의 월동생태)

  • Kang, Chang-Heon;Lee, Sang-Myeong;Chung, Yeong-Jin;Choi, Kwang-Sik;Park, Chung-Gyoc
    • Korean journal of applied entomology
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    • v.43 no.3 s.136
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    • pp.201-209
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    • 2004
  • Overwintering ecology of the peach pyralid moth, Dichocrosis punctiferalis Guenee (Lepidoptera: Pyralidae) was studied in laboratory and in a chestnut orchard in 2001/2002 winter and 2003 spring. All twenty-four female and fourteen male moths were fruit-feeding type which were emerged from the larvae collected at the same chestnut orchard in 2003 winter. Periodical thermal treatment of overwintering larvae at $25^{\circ}C$ revealed that diapause termination of the larval population started from the end of January and was completed until April 20 in southern region of Korea. Pupation of diapause-terminated larvae started from early May and reached to $100\%$ at June 3 in chestnut orchard. Days to pupation of female larvae after diapause termination were 12.5, 8.9, and 7.5 at $20^{\circ}C,\;25^{\circ}C$, and $30^{\circ}C$, respectively. Those of male larvae were similar to those of females. Pupal periods of female were 14.7, 11.8, and 9.0 days at the three temperatures. Moths of the overwintered generation emerged from May 20 to June 28, and reached to $50\%$ emergence on June 8 to 9 under emergence cage. Attraction of the male moths of overwintered generation to sex pheromone traps showed that the date of $50\%$ catches to the traps were June 17, when data from 3 southern regions of Korea were pooled.

Diversity and Abundance of Bark Beetles (Coleoptera, Curculionidae: Scolytinae and Platypodinae) in Deadwoods of Quercus serrata and Carpinus laxiflora (졸참나무와 서어나무 고사목의 나무좀의 다양성과 풍부도)

  • Kwon, Tae-Sung;Lee, Bong-Woo;Park, Shin-Young;Byun, Bong-Kyu;Park, Sang-Wook;Lee, Cheol-Min
    • Korean journal of applied entomology
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    • v.50 no.4
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    • pp.353-362
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    • 2011
  • This study was conducted to elucidate the patterns of occurrence of bark beetles on deadwoods of Quercus serrata Fisher and Carpinus laxiflora Blume which are expected to increase due to climate change. The survey was carried out at the LTER site in Gwangneung forest in Gyeonggi Province in 2007-2008. Bark beetles were collected using emergence traps and attraction traps (funnel trap and window trap). A total of 408 beetles belonging to 12 species in two subfamilies were collected. Platypus koryoensis (Murayama) was the most abundant species. P. koryoensis and Xylosandrus germanus (Blandford) occurred mainly in deadwoods of Q. serrata. All other species, except two rare species, occurred commonly in deadwood of both tree species. Species richness and abundance of bark beetles were higher in the attraction traps than in the emergence traps, and higher in Q. serrata than in C. laxiflora. These indexes were higher in classes I-II or I-III than in classes III-IV or IV of deadwood. Bark beetle communities differed according to years and showed a little difference between tree species.

Soil Seed Banks at Three Ecological Preservation Areas in Seoul (서울시 생태계 보전지역 3곳에서의 토양 종자은행)

  • Kim, Jae-Geun;Ju, Eun-Jung
    • The Korean Journal of Ecology
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    • v.28 no.5
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    • pp.271-279
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    • 2005
  • Soil seed banks at ecological preservation areas in Seoul, Jinkwannae-dong, Bangi-dong and Bam-sum, were studied by seedling emergence method from May to October 2004. Total number of species and individuals in seed banks were 42 and 5,190 at Jinkwannae-dong, 39 and 2,290 at Bangi-dong, and 39 and 1,047 at Bamsum. Salix koreensis community at Jinkwannae-dong has the highest number of seedlings among all sites. The most abundant species were Lindernia procumbens in Jinkwannae-dong and Bam-sum and Typha spp. in Bangi-dong. The dominant species of seed banks were different from that of plant communities such as Phragmites communis community, Salix koreensis community, Persicaria thunbergii community, Phragmites japonica community, and Populus tomentiglandulosa community. However the dominant species of seed banks in Typha community was Typha spp. Total 63 species emerged in either the wet or submerged conditions. Fifty six species appeared in the wet condition and 25 in the submerged condition. Eighteen species appeared in both conditions. Numbers of species and individuals were much less in the submerged condition than in the wet condition but free-floating hydrophytes including Rorippa islandica and floating-leaved hydrophytes including Monochoria vaginalis appeared only in the submerged condition. In the investigation of soil seed bank by distance from water edge (Bamsum), water side 3 ($300\sim350m$ from water) edge, where water level is fluctuating frequently, has the highest number of seedlings.

Sprouting and Emergence Properties of Eleocharis kuroguwai Ohwi (올방개 괴경(塊莖)의 맹아(萌芽) 및 출현(出現) 특성(特性))

  • Lee, H.K.;Lee, I.Y.;Ryu, G.H.;Lee, J.O.;Lee, E.J.
    • Korean Journal of Weed Science
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    • v.14 no.4
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    • pp.233-238
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    • 1994
  • The experiment on sprouting and emergence properties of Eleocharis kuroguwai was conducted at laboratory and greenhouse conditions in 1993. Most of tubers had the apical dominance of buds at sprouting and had the competitive relationship for mesocotyl elongation. When pyrazosulfuron was applied on soil surface, all of apical buds were killed, but the first and second lateral buds survived to 50% and 90%, respectively, and the third lateral buds were almost at presprouted state. The tubers at 10-15cm deep soil emerged 1 week late and 35% low in emergence rate compared with the tubers at 2-5cm deep. As the plants emerged from the deep soil, the mesocotyl and the roots were distributed at deep soil more or less. Among the tubers buried at 10cm and 15cm deep soil, 25% and 30% respectively were not emergerd due to the suspension of mesocotyl elongation. Although the roots and shoots were removed from the tubers at the stage of 20cm high, all of mother tubers emerged again even 2 weeks late.

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A Study on the Expression of Techno Fashion in Modern Fashion (현대패션에 나타난 테크노패션의 표현성에 관한 연구)

  • Lee, Eun-Kyung
    • Korean Journal of Human Ecology
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    • v.13 no.1
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    • pp.173-183
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    • 2004
  • The techno fashion presents the new formative beauty of fashion with a stream of light and dynamic phenomenon on human body. Also it opens the futurism arising from the combination of technology with fashion. The purpose of this paper was to investigate the internal trend and external form that techno-fashion aims at, and to analyze the expressive characteristics in design. The results were as follows. ${\cdot}$ The techno fashion created the new formative artifact through the dismantlement and reorganization of form. ${\cdot}$ The techno fashion used the composition of the geometrical abstraction as an expression of beauty symbolizing the modernity. ${\cdot}$ The techno fashion created the diverse colors by using the light along with colors of gold, silver, metal, intense fundamental colors, and artificial rotor. ${\cdot}$ The techno fashion expressed the dynamism, brilliance, youthfulness, futuristic image by using the sense of dazzling brightness by means of metal. ${\cdot}$ The techho fashion along with the development of science and technology made the atmosphere of silhouette of clothes different by expanding the category of materials more widely, together with the possibility of continual emergence of new material. ${\cdot}$ The techno fashion expressed the dynamic movement on clothes and gave the sense of periodical rhythm by the reflective action of light when they were clad. ${\cdot}$ The techno fashion grafted wearable technology into the fashion and made the information instruments recognized as a concept of clothes. ${\cdot}$ The techno fashion pursued the values of not only the beauty of the simple geometrical design, but also the values of functionality and expressed the image of high quality of life through the harmony of technology with human.

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The Analysis of the Present Ethnic Fashion's Major Characteristics (현대 에스닉 패션(Ethnic Fashion)의 특성 분석)

  • Choi, Young-Ok
    • Fashion & Textile Research Journal
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    • v.7 no.5
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    • pp.481-493
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    • 2005
  • Reason for contemporary ethnic-look's remarkable world popularity is viewed as due to counteraction of disordered world conditions such as war, terror, and economic depression. These conditions led people to desire the returning to primitive human society where freedom and peace are preserved. The background of ethnic look emergence is influences of post-modernism, eastern and western culture hybrid, and ecology. This study will mainly focus on the analysis of present ethnic fashion trend and, with following to this, their images will be analyzed and categorized. The result of ethnic trend, especially that of Asian's and African's, from 2000 to 2005 is like this: representative Asian ethnic fashion tendency is focusing on Japanese and Chinese. In Japanese style, oversized silhouette was derived by Kimono and wide belt was appeared by influence of Kimono's Obi. Chinese ethic style are analyzed as adapting feministic silhouette and details from Chinese traditional clothes, Chipao. Additionally, in some of the Chinese ethnic-look, there are mixtures with Japanese, North American, and African's images. Mixing with pop images and ancient ones are also emerged. In the African ethnic look, people used colorful cloth and new materials which is considered as integration of primitives and modern science. From the study, it is possible to conclude that current modern ethnic fashion can be defined as blends with one country's image to the other, mixture with new technology, and acceptance to the multi-national folk fashion. These trends are widely revealed and extended in the world fashion. In the following result of the analysis, there were four outstanding images lying underneath in the present ethnic-look. That is eclectic, traditional, natural, and mysterious images.

Life Cycle and Host Specificity of Tanysphyrus (Tanysphyroides) major Roelofs (Coleoptera : Curculionidae), a Possible Candidate Agent for the Biological Control of Monochoria vaginalis var. plantaginea (물달개비의 생물학적 방제인자 물달개비바구미의 생활사 및 기주특이성)

  • Park, Jin-Young;Park, Jae-Eup;Lee, In-Yong;Kwon, Oh-Seok;Park, Jong-Kyun
    • Korean Journal of Weed Science
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    • v.31 no.1
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    • pp.103-111
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    • 2011
  • Monochoria vaginalis var. plantaginea (Pontederiaceae) is one of the most problematic weed in the rice field in Korea. Tanysphyrus (Tanysphyroides) major was selected as a potential biological control agent for M. vaginalis. Continuous rearing of T. (T.) major was carried out from 2006 to 2007, and its morphological characteristics and ecological characteristics were investigated. This species has a single generation per year, over-wintering as an adult stage. The emergence of adults starts in later June and last until September. These observations indicate that T. (T.) major takes $22{\pm}0.7$ days to develop from egg to adulthood. Host specificity test showed that finally selected this species was suitable candidates for the biological control of M. vaginalis var. plantaginea since it showed negative host specificity against major 60 test crops.

Distribution patterns of Monochamus alternatus and M. saltuarius (Coleoptera: Cerambycidae) in Korea

  • Kwon, Tae-Sung;Lim, Jong-Hwan;Sim, Sang-Jun;Kwon, Young-Dae;Son, Sung-Kil;Lee, Kooi-Yong;Kim, Yeon-Tae;Park, Ji-Won;Shin, Chang-Hoon;Ryu, Seok-Bong;Lee, Chong-Kyu;Shin, Sang-Chul;Chung, Yeong-Jin;Park, Young-Seuk
    • Journal of Korean Society of Forest Science
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    • v.95 no.5
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    • pp.543-550
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    • 2006
  • Distribution patterns of two pine sawyer species (Monochamus alternatus which is the main vector insect and M. saltuarius which is the potential insect vector of the pine wood nematode) were investigated in Korea. The data were collected at 89 study sites which were chosen to cover the whole region of South Korea. The selected pine trees were killed in early April and left for I year in the pine stands to be egg-laid by the pine sawyers. Emergence of the beetles from the dead pine trees was checked from early April to late July. M. saltuarius was the most abundant in the mid to northern areas of South Korea, whereas M. alternatus in Jeju-do, southernmost island of Korea. Considering temperature distribution patterns in areas where the two species occur, their thermal distribution boundary may be formed around $13.2^{\circ}C$ of annual mean temperature. The hypothesized distribution map of the two Monochamus species under the invasion of pine wilt disease is suggested on the base of thermal distribution of Korean peninsula.

Proposition of Dragonfly's Appropriate Survey Period Inhabited in Temperate Zone (온대지역에 서식하는 잠자리의 적정 조사 시기 제안)

  • Lee, Soo-Dong
    • Korean Journal of Environment and Ecology
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    • v.33 no.1
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    • pp.16-27
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    • 2019
  • This study was identified the survey period and emergence of main species of dragonfly species, an indicator species that can identify the characteristics of wetland ecosystem. I surveyed the species and population of dragonflies once every two weeks from May 2015 to October 2016(29 times). From January to March, November and December were excluded from the cluster classification because the dragonflies were not observed. In April and October, the species was emerged but it was not suitable because it could not represent the time of the seasons. When we divide by month, it was able to judge from April to June as spring. Except the May, there were some changes due to rainfall and temperature, and sometimes June was included in the summer season. June, July and August correspond to summer, and September and October fall in Autumn. In June and October, the change was expected due to the effects of temperature and so it was judged as a partial fit. Looking at the change of the species, Coenagrion johansson and Paracercion calamorum were increase at the spring, and then Crocothemis servilia mariannae, Paracercion calamorum, Anax nigrofasciatus, Lyriothemis pachygastra, Orthetrum melania were abruptly enlarge in summer. At last, Sympetrum kunckeli, Lestes temporaris tended to be higher in Autumn.