• 제목/요약/키워드: Ecology literature

검색결과 351건 처리시간 0.025초

멸종위기 야생생물 I 급 털복주머니란 서식지 복원을 위한 서식지 적합성 지수(HSI) 개발 (Development of Habitat Suitability Index for Habitat Restoration of Class I Endangered Wildlife, Cypripedium guttatum Cw.)

  • 윤영준;김선령;장래하;한승현;이동진;심윤진;박용수
    • 한국환경복원기술학회지
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    • 제23권4호
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    • pp.1-11
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    • 2020
  • This study aimed to develop the HSI (Habitat Suitability Index) model of Cypripedium guttatum. and to verify this model by applying to the candidate sites for replacement habitat. The development of HSI and SI (Suitability Index) model was conducted based on the existing literature, field surveys, and expert opinions for information on ecological habitat characteristics. Seven variables were selected as habitat variables including mean maximum temperature in Jul.-Aug., lighting, slope, altitude, effective soil depth, soil texture, and artificial overexploitation (i.e. protected areas). HSI model was developed for C. guttaum based on these variables. This HSI model showed high applicability to selection and evaluation of replacement habitats for C. guttaum. Our findings could provide the basic information on habitat assessment to prevent the extinction of endangered C. guttatum. However, since there is a limitation that the survey data were insufficient, further field surveys should be conducted on several habitat types to improve the accuracy of the HSI model.

The First Case of Diarrhoea in Tibetan Sheep, Ovis aries, Caused by Balantidium coli in the Qinghai Tibetan Plateau Area, China

  • Jian, Ying-Na;Wang, Ge-Ping;Li, Xiu-Ping;Zhang, Xue-Yong;Ma, Li-Qing
    • Parasites, Hosts and Diseases
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    • 제56권6호
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    • pp.603-607
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    • 2018
  • This study was carried out to determine the pathogen-causing diarrhoea in sheep Ovis aries in the Qinghai Tibetan Plateau Area, China. A trophozoite was identified as species of ciliate alveolates infecting the sheep based on morphological characteristics examined by microscope. It was mostly spherical, colourless and transparent, with many vesicles. Macronucleus and contractile vacuoles could not be distinguished. Size of the trophozoite was $80-180{\times}70-150{\mu}m$ and its surface was covered with cilia. Molecular analysis based on sequences of 18S rRNA and ITS genes confirmed the ciliate species as Balantidium coli. According to the literature, there have been many epidemiological investigations of B. coli infection in pigs, monkeys and humans. To our knowledge, this was the first report of B. coli infections in sheep in the Qinghai Tibetan Plateau Area of China, or eleswhere around the world. Importantly, the sheep case was rare but raised our concern that B. coli may spread across species and expand its host range.

생태계서비스 평가를 위한 공간 수준별 측정지표 선정 - 공급서비스를 중심으로 - (The Selection of Measurement Indicators by Spatial Levels for Ecosystem Services Assessment - Focused on the Provisioning Service -)

  • 정필모;김정인;여인애;주우영;이경은
    • 한국환경복원기술학회지
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    • 제24권6호
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    • pp.67-87
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    • 2021
  • Provisioning service, which is one of the ecosystem service functions, means goods and services such as food and fuel that people get from ecosystem. Provisioning functions are closely related to the primary industry, a sector of economy. Excessive demand and use of human society can cause trade-offs among regulation, cultural, and supporting services. Therefore, it is important to perform evaluation ecosystem services periodically and to monitor the time series fluctuations to identify the impact of provisioning services on other ecosystem services (trade-off) and to maintain sustainable provisioning service. When it comes to the precise assessment of provisioning service, it is necessary to get the statistical data and standardize indicators and methods. In this study, indicators and methods, which are applicable to the spatial level of national-local-protected areas, were derived through literature analysis and expert survey. The result of this study implies that provisioning services measurement by spatial level improve the efficiency of the establishment of environmental conservation plans by whose purpose.

울릉도의 귀화식물 현황 및 특성 (Study on the Current Status of Naturalized Plant in Ulleung-do)

  • 이경연;남희정;김나영;김덕기;류태복
    • 한국환경복원기술학회지
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    • 제26권6호
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    • pp.165-177
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    • 2023
  • Field surveys were conducted at a total of 50 locations targeting naturalized plants on Ulleung-do. A total of 109 taxa were identified, including the list of naturalized plants in the preceding literature. The naturalized plants of Ulleung-do had a high proportion of Asteraceae, which appeared frequently in the habitat of the ruderal type. There were no naturalized plants that settled only on Ulleung-do, and all naturalized plants found on Ulleung-do first settled on the Korean Peninsula. This was proved by the high rates of epecophyten (90.8%) and the introduction period 2nd (70.6%). On the other hand, among ecosystem-disturbing species that have a great influence in the inland of the Korean Peninsula, Hypochaeris radicata and Rumex acetosella appeared in a limited area in Ulleung-do. On the other hand, Lapsana communis appeared in high density along the forest edge, requiring management of naturalized plants different from those in the Korean Peninsula. Naturalized plants on Ulleung-do showed a rapid increase in the 1990s after increased academic research, coastal road development, and other development projects. This highlights the necessity for continuous research on the pattern of naturalized plant occurrence after the completion of the Ulleung Airport, which is currently under construction.

전주지역 중학생의 가정교과의 주생활 영역에 대한 행동체계별 요구도 (The Behavioral Systemic Needs of Students for the Housing Chapters in Home Economics Curriculum)

  • 유원희;최병숙
    • 한국가정과학회지
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    • 제10권2호
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    • pp.5-18
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    • 2007
  • The purpose of this study was to examine middle school students' three behavioral systemic needs for the Housing chapter in Home Economics curriculum, Through literature review, the concepts of the three behavioral systems in this study were divided into technical, interpretive and emancipatory one. The questionnaire survey method was used, The subjects were selected randomly the third grade 259 students at 6 middle schools located in Jeonju city, from December 17, 2004 to January 17, 2005, Data were analyzed by using SPSS/WIN 11.5 program. The results were as follows; 1) Average of importance which middle school students recognized was showed the interpretive behavioral system> the emancipatory behavioral system> the technical behavioral system, That of reflection of the text book was showed that the technical was same with the interpretive, and the emancipatory was a little lower value than two systems, And needs in each system were the emancipatory behavioral system> the technical behavioral system> the interpretive behavioral system, 2) Average needs were showed according to the sub-chapter of housing. 'Preservation and Repair of house' in the technical behavioral system and 'Indoor Environment and Equipment' in the interpretive and the emancipatory behavioral systems.

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서해안 송도매립지에서 번식하는 검은머리갈매기의 현황과 번식생태 (Breeding Status and Ecology of Saunders' Gulls (Larus saundersi) in Songdo Reclaimed Land, West Coast of Korea)

  • 권영수;정훈
    • Ocean and Polar Research
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    • 제31권3호
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    • pp.277-282
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    • 2009
  • Saunders' gulls (Laurs saundersi) which are listed as globally vulnerable species on the IUCN Red List are distributed in East Asia and breed mainly in China and Korea. Their population is estimated to be between 7,100 to 9,600. Songdo reclaimed lands in the western coast of South Korea are the main breeding sites for these species. However, most of these breeding sites have been seriously disturbed in the last several years because of new urban development constructions. This study was conducted to provide baseline data on the breeding ecology of Saunders' gulls. Since 1998, the breeding population has rapidly increased in South Korea, with the number of nests rising from 85 nests in 2000 to 185 nests in 2005. Egg volume is more variable than breadth or length. Clutch size, hatching and breeding success were $2.9{\pm}0.81$ (n=182, mean$\pm$sd.), 48.07% (75 hatched egg/156 eggs) and 29.08% (155 fledglings/533 eggs), respectively. Factors affecting breeding failure were predation, rainfall, starvation and supernormal clutches. These results are provided along with other cited literature to argue for conservation of Saunders' gulls.

한·미·일 프로야구 유니폼의 비주얼 아이덴티티 연구 - 색채를 중심으로 - (A Study on Visual Identity of Professional Baseball Uniforms in Korea, America, and Japan - Focused on Color -)

  • 임송미;이미숙
    • 패션비즈니스
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    • 제17권2호
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    • pp.117-135
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    • 2013
  • With the growth of mass media, professional baseball teams have strived to keep up team's tradition and individuality and build a distinctive image through sports marketing using visual identity. Among others, a baseball uniform is used as a sports marketing tool more than an uniform. Uniform color acts as a distinctive element in team's uniform design and is effective to raise attention, manifest a positive image to spectators, and increase trust and affinity. This study aims to compare and analyze color characteristics and images of professional baseball uniforms in America, Japan, and Korea as visual identity. For this, literature review was made on the history of baseball, uniforms, sports marketing, and visual identity, and then color characteristics and images were analyzed on professional baseball away uniforms in Korea, America, and Japan collected in Internet and official web sites. The results are as follows. First, for color characteristics of professional baseball uniforms, the most frequently used color was R(V) color in Korea, ltGy color in America, and Bk color in Japan. Second, for color images of professional baseball uniforms, the most frequently used image was a casual image in Korea, a dandy image in America, and a modern image in Japan.

중고한복시장 및 한복리폼시장의 활성화 방안 연구 (A Study on the Activation of Used Market of Hanbok and Hanbok Reform Market)

  • 이인화;손미영
    • Human Ecology Research
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    • 제59권1호
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    • pp.59-69
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    • 2021
  • In order to find ways to re-use used Hanbok and activate Hanbok reform, it is necessary to investigate the current status and problems of used Hanbok and Hanbok reform in the domestic Hanbok market. The purpose of this study was to investigate the status and problems of the used Hanbok market and the Hanbok reform market through literature data surveys and in-depth interviews with Hanbok experts, and to study ways to activate used Hanbok and Hanbok reform. Based on the results of this study, as a way to activate the used Hanbok market and the Hanbok reform market, expand opportunities and create a social and cultural atmosphere for wearing Hanbok, and research on design, pattern, size, and materials. It also suggested the establishment of a systematic system for separate collection, reform, sales and management, the establishment of a central institution that manages and operates the re-use of used Hanbok and Hanbok reform, support for education institutions and programs for Hanbok reform, public relations, and changes in Hanbok production methods.

상호작용하는 건축공간에서 나타나는 생태학적 특성에 관한 연구 (A Study on Ecological characteristic in Interactive architecture)

  • 고귀한
    • 한국실내디자인학회논문집
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    • 제21권4호
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    • pp.121-128
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    • 2012
  • Interactive space became one of the modern contemporary society design paradigms. For elevating the interactive effect, we need Interactive design development which uses the influential factors on the interactivity. Digital technology is resulted in a change to a society as well as to the life of human and its way of communication. This study is inquiry into the relations and the common characteristics between ecological architecture space and eco-centric environmental philosophy by making a comparative research. This aims to examine type of spatial contexts for performed through literature research for theory by interactive space and case studies for ecological construction elements to design. And the range of case study is limited to interaction space in addition of interactive elements and user interface. And analysis conclusion is show the many type. Five principles that draw at ecological design conceptualization process, whole unity, variety of organic at ecological design conceptualization process, circularity, homeostasis, allness, biological evolution, diversity have involved with concept that presents in ecological esthetics and organic property of ecology-system.

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유아기 자녀의 교육에 대한 어머니 신념 척도 개발 (Development of a maternal beliefs scale on preschool children's education)

  • 송명숙;옥선화
    • 한국생활과학회지
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    • 제14권1호
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    • pp.1-13
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    • 2005
  • This study has a purpose of developing a scale to evaluate maternal beliefs on preschool children's education. The subjects were 307 mothers of preschool children in Gwang-ju. The methods for data analyses included a factor analysis for construct validity, Pearson correlations between beliefs and learning-related activities for construct validity, and Cronbach's a for reliability. 4 factors were found, through literature review, in parental beliefs: passive learning, active learning, instruction, and expectation for academic-related skills acquisition. Factor analysis revealed that the 4-factor solution is the best fit. Correlations between beliefs and learning-related activities were statistically significant. Cronbach's a ranged from .65 to .87 for 4 sub-scales. It was concluded that the maternal beliefs scale is acceptable for use.

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