• Title/Summary/Keyword: Butterflies

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Seasonal Distribution of Wildlife in An Urban Stream -The Case of Gongji Stream in Chuncheon- (도시하천의 계절별 야생동물 서식 연구 - 춘천시 공지천을 대상으로 -)

  • Jo, Hyun-Kil;Han, Gab-Soo;Choi, Jae-Suk;Park, Jeong-Ho;Lee, Joon-Suk
    • Journal of Environmental Science International
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    • v.16 no.3
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    • pp.277-285
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    • 2007
  • The purpose of this study is to analyze seasonal distribution of insects, birds, fishes, and benthos for Gongji stream in Chuncheon and to explore some strategies towards creating a desirable close-to-nature stream. The number of species occurred in the study stream was 23 for butterflies and 149 for other insects, 23 for birds, 15 for fishes, and 47 for benthos. The study stream was dominated by Artogenia rapae, Polygonia caureum, Cyntia cardui for butterflies, and Passer montanus, Anas crecca, Anas platyrhynchos for birds. The dominant species were Rhynchocypris oxycephalus, Zacco plutypus, Carassius auratus for fishes, and Limnodrilus sp. 2, Chiranumus sp. 2, Hydropsyche KUb for benthos. Attracting insect species of higher density requires planting of host plant species and stabilization of plant coverage against disturbances. To enhance species diversify and density of birds, it is desirable to provide diverse habitats including preservation of downstream wetland and natural vegetation, creation of sand bars and islands with sand and gravel, and restriction or traffic passing and parking. Restoring fish and benthos habitats needs improvement of water quality, layout of gravels and stones on sand-dominant streambed, and use of close-to-nature revetment techniques.

In vivo visualization of liquid-feeding phenomena of a butterfly (나비 펌프의 구조와 동적 거동의 in vivo 가시화)

  • Lee, Seung-Chul;Kim, Bo-Heum;Lee, Sang-Joon
    • Journal of the Korean Society of Visualization
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    • v.9 no.4
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    • pp.69-73
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    • 2011
  • Butterflies have been known to suck viscous liquids through a long, cylindrical proboscis using the large pressure difference formulated by the cyclic expansion and contraction of a muscular pump located inside their head. However, there are few studies on the liquid-feeding phenomena in a live butterfly, because it is hard to observe the internal morphological structures under in vivo condition. In this study, the dynamic motion of the pump system in a butterfly was in vivo visualized using synchrotron X-ray micro-imaging technique to analyze the liquid-feeding mechanism. The period of the liquid-feeding process is about 0.3sec. The expansion stage is about two times larger than the contraction stage in one cycle. The cyclic variation of pump volume generate large negative suction pressure and the pressure difference inside the long proboscis of a butterfly is estimated to be larger than 1atm.

Pyebaeck Prepared by Park, Bokja in Jeonju (전주 박복자 할머니의 폐백 음식)

  • Suh, Hye-Kyung
    • Journal of the Korean Society of Food Culture
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    • v.17 no.4
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    • pp.473-481
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    • 2002
  • Pyebaek of Jeonju area based on the method prepared by late old madame Park, Bokja can be characterized as follows: First, vegetables which could be obtained locally constituted the main body of materials of Jeonju Pyebaek and animal foods used in Pyebaek were dried fishe for the most of times. In the pre-refrigerator era, the main reason behind the heavy uses of dried fish such as dried abalone or octopus instead of animal foods can be attributed to the easy availability of dried fish. In recent years, foods made of animal foods has been indispensible items. Second for the patterns and decorations of Pyebaek natural figures such as birds, flowers, butterflies, loaves and half moon were imitated in making of octopus cuttings, squid cuttings, Yakkwa, Hwajeon, Dried persimmons, Jeonbokssam, etc. Beef jerky, Yeotgangjeong were decorated beautifully with pine nuts, shredded dried dates and raisins. Many colors were used in various items of Jeonju Pyebaek such as Hwajeon, Songpyun, Saji. Finally, flavors of Jeonju Pyebaek are sweet and tasty of sesame oil.

The Research Regarding of Visitors' Perception of Animal Elements in Landscape Architecture

  • Shen, Ning;Bae, Jung Nam;Zhang, Li-Qin;Piao, Yong-Ji
    • Journal of Environmental Science International
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    • v.22 no.6
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    • pp.679-686
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    • 2013
  • Based on the survey of East Lake Park, South Lake Park and Tian Waicun in Tai'an by questionnaire survey, on-the-spot investigation and in-depth interview, the paper analyzes the tendencies of visitors to the animal elements and animal landscape in landscape architecture from three terms: primary attributes, the cognition of animal elements and animal elements landscape preferences. We have drawn several conclusions: the landscapes of animal elements are in urgent demand by the public ; The animal elements having lovely image, auspicious meaning and local characteristics are the most popular application types of animal elements landscapes ; The most favorite types of animals and animal elements are: doves, cranes monkeys, pandas, butterflies, dragonflies, fold fish, dolphins, dragons and cartoon animals ; The popular landscaping techniques of animal elements are the methods of combining with plants, buildings and garden ornaments.

Numerical Flow Visualization of Cyclic Motion of a Fling-Clapping Wing (프링-크래핑 날개의 주기적 운동에 관한 수치적 흐름 가시화)

  • Chang, Jo-Won;Sohn, Myong-Hwan
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.28 no.12
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    • pp.1511-1520
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    • 2004
  • A flow visualization of the two-dimensional rigid fling-clap motions of the flat-plate wing are performed to gain knowledge of butterfly mechanisms that might be employed by butterflies during flight. In this numerical visualization, the time-dependent Navier-Stokes equations are solved for cyclic fling and clap types of wing motion. The separation vortex pair that is developed in the fling phase of the cyclic fling and clap motion is observed to be stronger than those of the fling followed by clap and pause motion(1st cycle motion). This stronger separation vortex pair in the fling phase is attributable to the separation vortex pair of the outside space developed in the clap phase as it moves into the opening in the following fling phase. Accordingly, higher lift and power expenditure coefficients in the fling after clap phase is caused by the stronger separation vortex pair.

Study of Microrobot formed the Wing of a Insect (곤충 날개를 형상화한 마이크로로봇의 연구)

  • 김종걸;이건영
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.424-424
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    • 2000
  • The implementation of a insect-based flying microrobot has been previously proposed as using magnetic force. The flying principle of a butterfly is different from that of a airplane, which obtain lifting force above the wings by a air stream with low pressure. Butterflies obtain lifting force below the wings by flapping. They can fly when drag during the down stroke is greater that during the up stroke. The structure of flying microrobot must satisfy these condition. And that must be manufacture lightly and keep balance for rising to the air sufficiently. Moreover the efficiency of an electromagnet is high and the flux density is sustained uniformly and widely Nevertheless these condition is satisfied, the implementation of a flying microrobot is very difficult as the flying microrobot has to fly without guides or sensor. We propose differently a new model il] comparison with that other paper has suggested. This imitates the form of the Korean shield-shaped kite.

Diet Composition of Japanese Tree Frog (Hyla japonica) in a Rice Paddy, South Korea

  • Park, So Hyun;Lee, Hyun;Cho, Kang-Hyun
    • Ecology and Resilient Infrastructure
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    • v.5 no.1
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    • pp.54-58
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    • 2018
  • Diet composition of amphibians usually reflects the distribution of potential prey within habitats, as well as their diet preference. We identified the diet items of Japanese tree frog (Hyla japonica) using a stomach flushing method in a rice paddy for the establishment of bio-monitoring systems of landscape changes. During the reproductive period, 71% of calling males had empty stomachs. All prey items in the stomachs belonged to the phylum Arthropoda, from eight orders of Insecta and one order of Arachnida. Among insect prey, the most common items in the stomachs were adults of beetles, flies and bugs, and larvae of butterflies and moths. There was a significant positive correlation between the body mass of Japanese tree frogs and the volume of prey items. Our results can provide a basic framework to guide the monitoring systems using prey identification of Japanese tree frogs.

A Study on Embroidered Figures of Miao's Traditional Costume Guizhou Province in China (중국 귀주성(貴州省) 묘족(苗族)의 복식에 나타난 문양의 특성에 관한 연구)

  • Kim, Young-Sin
    • Fashion & Textile Research Journal
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    • v.4 no.1
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    • pp.31-39
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    • 2002
  • The analysis revealed that the pattern represent the function of written language, the Miao's idea of nature as tie object of worship and exorcism, and their primitive thinking. The patterns are chiefly embroidered collars, shoulders of blouse, waist blind and hem lines of skirt. The design of patterns are animals and plants and geometrical figured. Most of patterns are dragon, fishes, birds, butterflies, which are liked by the Miao people. The patterns are highly imaginative and true to life, and are made with strong national and popular features.

Notes on the Ahlbergia (Lepidoptera, Lycaenidae, Theclinae) from Korea, with Two Newly Recorded Species

  • Sung-Soo Kim;Jung-Dal Sohn;Young Joon Lee;Sang-Kyu Sohn;Bora Shin;Sei-Woong Choi
    • Animal Systematics, Evolution and Diversity
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    • v.40 no.1
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    • pp.94-101
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    • 2024
  • Four species of green hairstreak butterflies, namely Ahlbergia ferrea, A. tricaudata, A. frivaldszkyi, and A. leei, belonging to the genus Ahlbergia Bryk, 1946 (Papilionidea: Lycaenidae), are examined in Korea. It was discovered that Ahlbergia frivaldszkyi, which was previously incorrectly reported in Korea, is actually A. leei. We report two species, A. frivaldszkyi and A. tricaudata as new additions to the Korean fauna. Detailed diagnoses of these four species are provided, including descriptions of both male and female genitalia, along with a key for identifying the four species found in Korea.

A Study of the Butterfly Community of Mt. Gyeryong National Park, Korea (계룡산국립공원의 나비류 군집에 관한 연구)

  • Jeon, Sung-Jae;Cho, Young-Ho;Han, Yong-Gu;Kim, Young-Jin;Choi, Min-Joo;Park, Young-Jun;Nam, Sang-Ho
    • Korean Journal of Environment and Ecology
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    • v.26 no.3
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    • pp.348-361
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    • 2012
  • Altitude is a factor that plays an important role in the diversity, richness and composition of species. Recently, much attention has been paid to the distribution of butterflies and insects according to altitude. The purpose of this article is to propose a method to preserve and manage species efficiently by reviewing the distribution of butterflies according to different altitudes in Mt. Gyeryong National Park. This study found that the number of species and individuals decreased as the altitude increased, possibly due to the increased amount of shade caused by the crown density. When analyzing the factors influencing the distribution of species other than altitude, it was found that the slope, vegetative colonies and hydrosphere distance were correlated with the change in species distribution. As these species are closely related to food plants, it may save time and reduce the cost as well as allow an efficient evaluation of the bio-diversity if these species are selected as biological indicator species suitable for detecting the changes in the forest. It is judged to be a more efficient means of species preservation to accumulate and quantify the materials regarding environmental elements such as the climate, microclimate and food plants, as this would allow the butterfly distribution to be estimated.