• 제목/요약/키워드: culture.ecology

검색결과 719건 처리시간 0.031초

Surface Mating as an Alternative Mating Strategy in the Fiddler Crab Uca lactea

  • Kim, Tae-Won;Kim, Tae-Keun;Hong, Sun-Kee;Choe, Jae-Chun
    • Journal of Ecology and Environment
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    • 제29권1호
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    • pp.49-53
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    • 2006
  • The fiddler crab, Uca lactea, which lives on intertidal mudflats in Korea, exhibits both burrow mating and surface mating. We observed 17 cases of surface mating that occurred on Ganghwa Island, South Korea. Most surface-mating males did not build semidomes, structures that attract searching females for burrow mating. Based on the conclusion of a previous study that semidome building is condition-dependent, we suggest that food availability may influence the mating tactic of this species. In addition, there was a strong correlation between the carapace size of both sexes that surface-mated, which suggests that males use body size of females as a mating cue.

1990년대 초반 복식유행에 나타난 에콜로지 이미지 (Ecological Image in Fashion During the Early Period of 1990's)

  • 한소원;김영인
    • 한국의류학회지
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    • 제23권2호
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    • pp.296-306
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    • 1999
  • This study reflects the aim of analyzing the fashion design connection with ecology. Ecology has been linked to human life through its changing relations with environment. In order to recover eco-system ecology-nature oriented methodology and technology oriented approach will suffice. On the modern design field Green design Recycling and Green marketing resulted in increasing rates of environment-friendly production and an effort to deliver environment-friendly corporate image. Based on above research ecological image on fashion design during the year 1990 to 1995 represents the following conclusion. In the fashion design field natural image primitive image nature -harmonious image material-recyling image culture-recycling image are proposed. In the technology field clean image and high-tech image are proposed. In the marketing field happy image harmonious image serious image and realistic image are proposed.

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Fibrolytic Rumen Bacteria: Their Ecology and Functions

  • Koike, Satoshi;Kobayashi, Yasuo
    • Asian-Australasian Journal of Animal Sciences
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    • 제22권1호
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    • pp.131-138
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    • 2009
  • Among rumen microbes, bacteria play important roles in the biological degradation of plant fiber due to their large biomass and high activity. To maximize the utilization of fiber components such as cellulose and hemicellulose by ruminant animals, the ecology and functions of rumen bacteria should be understood in detail. Recent genome sequencing analyses of representative fibrolytic bacterial species revealed that the number and variety of enzymes for plant fiber digestion clearly differ between Fibrobacter succinogenes and Ruminococcus flavefaciens. Therefore, the mechanism of plant fiber digestion is also thought to differ between these two species. Ecology of individual fibrolytic bacterial species has been investigated using pure cultures and electron microscopy. Recent advances in molecular biology techniques complement the disadvantages of conventional techniques and allow accurate evaluation of the ecology of specific bacteria in mixed culture, even in situ and in vivo. Molecular monitoring of fibrolytic bacterial species in the rumen indicated the predominance of F. succinogenes. Nutritive interactions between fibrolytic and non-fibrolytic bacteria are important in maintaining and promoting fibrolytic activity, mainly in terms of crossfeeding of metabolites. Recent 16S rDNA-based analyses suggest that presently recognized fibrolytic species such as F. succinogenes and two Ruminococcus species with fibrolytic activity may represent only a small proportion of the total fibrolytic population and that uncultured bacteria may be responsible for fiber digestion in the rumen. Therefore, characterization of these unidentified bacteria is important to fully understand the physiology and ecology of fiber digestion. To achieve this, a combination of conventional and modern techniques could be useful.

지속 가능한 개발 및 생태조경분야의 연구경향과 과제 (Issues and Trends concerning of Ecological Landscape Planning and Design with ESSD)

  • 이명우
    • 한국조경학회지
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    • 제32권1호
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    • pp.139-156
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    • 2004
  • All Papers on Ecological Landscape Degign in KILA from 1973 to 2003 are listed herein for finding research issues and trends. The emerging field of Ecological studies of landscape design is based on Landscape Ecology and Watershed Ecology, the Principles of which can be applied to surveying and evaluation, Planning and design, construction and management focusing preservation of wildlife habitat and niche. This field can be classified into six categories: 1. Sustainable site planning and index, 2. Ecological planning process and regulation, 3. landscape ecology and biotope map, 4. Watershed and eco corridor project, 5. Urban forestry and environment, and 6. artificial ground and restoration ecology. The following is the summary of the findings from Paper review: 1. Sustainable index shall be studied about more specified sites. Water recycling facilities, and reservation wet land need to be studied. 2. Policy and legislation research on Ecological design shall be researched by expanding of the application field. Nature park planning and management fields shall be considered as the main theme of green networking Parts. 3. Landscape Ecological studies should be connected to practical surveying data, e.g. the eco-maps published by Environment Ministry. Traditional culture and science should be joined with the modem science. 4. Eco-corridor planning will go with the scenarios and theories of watershed ecology. 5. Urban forestry shall be studied with the wildlife's behavior and habitat. 6. Restoration engineering techniques should be reconsidered with the wildlife's existence and environmental affiliation.

Identification and Characterization of the Antifungal Substances of a Novel Streptomyces cavourensis NA4

  • Pan, Hua-Qi;Yu, Su-Ya;Song, Chun-Feng;Wang, Nan;Hua, Hui-Ming;Hu, Jiang-Chun;Wang, Shu-Jin
    • Journal of Microbiology and Biotechnology
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    • 제25권3호
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    • pp.353-357
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    • 2015
  • A new actinomycete strain NA4 was isolated from a deep-sea sediment collected from the South China Sea and showed promising antifungal activities against soilborne fungal pathogens. It was identified as Streptomyces cavourensis by morphological, physiological, and phylogenetic analyses based on its 16S rRNA gene sequence. The main antifungal components were isolated and identified from the fermentation culture as bafilomycins B1 and C1. These compounds exhibited significant antifungal activities and a broad antifungal spectrum. The results suggest that the Streptomyces cavourensis NA4 and bafilomycins B1 and C1 could be used as potential biocontrol agents for soilborne fungal diseases of plants.

Conservation of landscape and culture in southwestern islands of Japan

  • Somiya, Kazuo
    • Journal of Ecology and Environment
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    • 제38권2호
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    • pp.229-239
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    • 2015
  • The southwestern islands of Japan, especially southward from Amamioshima Island, have distinguished sets of nature and culture. However, various problems are arising on those islands. This report first introduces island characteristics as well as, their status briefly. Then it introduces conservation efforts. Since nature and culture are closely connected in the island system, conservation of the set of nature and culture is essentially important. From this point of view, this report focuses on two efforts. The first example is the effort for designation of a new national park with a new concept of "environmental culture type" and "ecosystem management type" in the Amami Gunto Islands. This effort is a new challenge to focus on the importance of cultural aspects. The second example is the unique effort of the national park visitor center to conserve as one set of integrated nature and culture with an alliance of all stakeholders in Taketomijima Island, Iriomote-Ishigaki National Park. The visitor center serves not only visitors, but also islanders. These two cases are good models that suggest hints for future conservation measures.

제주 해녀문화를 기반으로 한 어패럴디자인 개발 (The Development of Apparel Design based on JEJU Haenyeo Culture)

  • 김현미;장애란
    • 한국생활과학회지
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    • 제22권2호
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    • pp.357-363
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    • 2013
  • The purpose of this study is to suggest a new method to develop the apparel design applied construction of traditional swimsuit wearing Jeju woman divers known as Haenyeo. Jeju Haenyeos are represented as an image of the diligent and strong woman. With such an image, they have become the symbol of Jeju women. Furthermore, Jeju Haeyeo culture will be rebranded. The Jeju woman divers wear special swimsuit (Mul-sojungii) when harvesting the various sea products. The Mul-sojungii was buttoned down the right side so that it could be easily removed. Therefore, it is to review the fashion design products for effective item applied the original or modified folding technique of Mul-sojungii. As a result, it was to develop the bolero, jump suit and dress design of Korean image using folding technique(Guljapgi) of Mul-sojungii that is one of the unique, indigenous construction of Jeju.

노인급식에 적용하기 위한 새우 죽의 물리적, 관능적 품질특성 평가 (Assessment of Quality Characteristics of the Shrimp Powder, Jook, for Elderly Foodservice Operation)

  • 조희숙;김경희
    • 한국식생활문화학회지
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    • 제24권4호
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    • pp.419-425
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    • 2009
  • This study examined the effects of added amounts of shrimp powder on the physical and sensory properties of Jook for elderly foodservice operation. According to the amylograph data, the composite shrimp flour-wheat flour samples increased the gelatinization temperature, with increasing shrimp-flour content; moreover, initial viscosity at $95^{\circ}C$, viscosity at $95^{\circ}C$ after 15 minutes, and maximum viscosity were reduced. As the level of shrimp powder in samples increased, L-values decreased, and a-values and b-values increased. In addition, the Jook had higher viscosity and lower spreadability values as the amount of shrimp powder increased. Sensory characteristics, such as nutty taste, color, viscosity, and overall preference increased significantly with the addition of shrimp powder. In conclusion, to enhance the quality of Jook, a 3% addition of shrimp powder would be the most beneficial.

홍어 분말 첨가 쿠키의 품질 특성 연구 (Quality Characteristics of Cookies fortified with Skate (Raja kenojei) Powder)

  • 조희숙;김경희
    • 한국식생활문화학회지
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    • 제23권6호
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    • pp.771-778
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    • 2008
  • This study was conducted to investigate the quality characteristics of cookies prepared using skate powder (0, 1, 3, 5, 7%) as a substitute for flour. The pH of the cookie dough decreased significantly in response to the addition of all levels of skate powder. However, there were no significant differences in the dough values among the test groups. Furthermore, when the spread factor values were compared among groups, they were found to be inversely proportional to the skate powder concentration. In addition, the Hunter's color L, a and b values decreased significantly as the level of skate powder increased. Moreover, the addition of 1-7% skate powder resulted in increased hardness, cohesiveness, springiness, and brittleness when compared to the control. Finally, the results of the sensory evaluation and acceptance test showed that the cookies containing 3% skate powder had the highest scores.

Grovesiella abieticola (Tympanidaceae): an Unrecorded Endophytic Fungus from South Korea

  • Eo, Ju-Kyeong;Park, Eunsu
    • 한국균학회지
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    • 제48권2호
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    • pp.169-173
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    • 2020
  • We report on an unrecorded endophytic fungus, Grovesiella abieticola (Zeller & Goodd.) M. Morelet & Gremmen isolated from Abies koreana of Mt. Halla in Jeju. In this study, we used a culture method to determine its conidia and compared relative species using an internal transcribed spacer (ITS) 1, 2, and 5.8S ribosomal DNA sequence. Thus, we present the cultural characteristics and morphology of G. abieticola in this paper.