• 제목/요약/키워드: wild animals

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자연생태계 보호를 위한 법적 연구 - 멸종위기야생동.식물 보호를 중심으로 - (A Legal Study on the Natural Ecosystem Protection)

  • 이준복
    • 환경정책연구
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    • 제7권4호
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    • pp.75-103
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    • 2008
  • 산업화에 따른 역기능으로 인해 자연생태환경이 파괴되고 있는 현실은 인류를 위협하고 있는 것이 사실이다. 그 중 산업화가 되기 이전부터 인류와 함께 공존해 온 야생생물의 멸종 위기는 곧 인류가 지구상에서 사라질 수 있다는 경고의 메시지이기도 하다. 이에 본 연구에서는 궁극적으로는 자연생태환경보호를 도모하고자 야생생물 보호에 초점을 맞춰서 진행한다. 이러한 야생생물 보호는 단지 보호 차원에서 끝나는 것이 아니라, 자연생태계의 다양성 보전을 바탕으로 이루어지는 각종 생물의 종이 지닌 유전자의 다양성으로 인한 유용한 경제적 가치를 생각해 볼 수도 있는 것이며, 사라진 종들에게서는 결코 회복될 수 없는 특징을 생각해 보면 우리에게 처해진 현실을 해결하는 것이 얼마나 시급한 문제안가 하는것을 인식할 수 있을 것이다. 따라서 우선 야생동 식물에 대한 개념정리와 생존위협 원인을 분석하여 야생동 식물 보호에 대한 이론적 고찰을 시도하고, 다음으로는 현행 보호입법의 문제점을 짚어보며 외국의 입법례를 통해 우리가 수용해야 되는 부분에 대해 정리한다. 나아가 앞서 언급한 내용을 바탕으로 현재 시행되고 있는 보호법의 한계를 극복할 수 있도록 법률의 체계적인 정비를 모색해 보고, 제도적 측면에서도 외국의 보호제도를 수렴하여 제도적인 대책까지 마련하고자 한다.

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Status of Radiation Dose and Radioactive Contamination due to the Fukushima Accident

  • Baba, Mamoru
    • Journal of Radiation Protection and Research
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    • 제41권2호
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    • pp.133-140
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    • 2016
  • Backgrounds: The accident at Fukushima Daiichi Nuclear Power Plant (NPP), March 2011, caused serious radioactive contamination over wide area in east Japan. Therefore, it is important to know the effect of the accident and the status of NPP. Materials and Methods: This paper provides a review on the status of radiation dose and radioactive contamination caused by the accident on the basis of publicized information. Results and Discussion: Monitoring of radiation dose and exposure dose of residents has been conducted extensively by the governments and various organizations. The effective dose of general residents due to the accident proved to be less than a mSv both for external and internal dose. The equivalent committed dose of thyroid was evaluated to be a few mSv in mean value and less than 50 mSv even for children. Monitoring of radioactivity concentration has been carried out on food ingredients, milk and tap water, and actual meal. These studies indicated the percentage of foods above the regulation standard was over 10% in 2011 but decreasing steadily with time. The internal dose due to foods proved to be tens of ${\mu}Sv$ and much less than that due to natural $^{40}K$ even in the Fukushima area and decreasing steadily, although high level concentration is still observed in wild plants, wild mushrooms, animals and some kind of fishes. Conclusion: According to extensive studies, not only the effect of the accident but also the pathway and countermeasures against radioactive contamination have been revealed, and they are applied very effectively for restoration of environment and reconstruction of the area.

모피 의류의 패션 변화와 수출 산업 육성 방안 연구 (Fashion Changes in fur Clothing & Export Industry Supporting Plan)

  • 김혜경
    • 복식
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    • 제38권
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    • pp.245-260
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    • 1998
  • Our country's fur clothing industry has rapidly grown for a short time since it started with simple needlework of fur pieces, and now it is still developing as export industry that some enterprises besides general business firm export more than ten million dollars a year. However, it is true that fur clothing industry is still in unsatisfactory level in its size and system, compared with manufacturing or leather industry. Of course, we import crude material and processed fur on an entire base, and we have few wild fur on an entire base, and we have few wild fur animals because of our natural condition and it is hard to breed them. On the other hand, the world's fur industry shows that the demand of fur clothes is increasing as fur animal breeding is improved and developed and supply has become rather abundant with the help of fur clothing fashion since late 19th century : Also, there is a trend that some developed countries depend on importing rather than self-prodoction because of the character-istic of labor-concetntraled fur industry. Accordingly, considering this situation, we can expect fur clothing industry as promising export industry by analyzing the present situation of our country's fur clothing industry and suggesting its problems and solutions, and here are developing plans for growing fur clothing industry as promising export industry. First, smoothing delivery of crude material. Second, making high quality products and diversifying goods. Third, establishing effective competition system in fur clothing industry. Fourth, raising skilled man power. Lastly, there should be coopetation among the related fields in the aspect of policy including the support from the government.

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Essential Role of brc-2 in Chromosome Integrity of Germ Cells in C. elegans

  • Ko, Eunkyong;Lee, Junho;Lee, Hyunsook
    • Molecules and Cells
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    • 제26권6호
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    • pp.590-594
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    • 2008
  • brc-2, an ortholog of BRCA2 in Caenorhabditis elegans, is essential in the maintenance of genetic integrity. In C. elegans, cellular location correlates with meiotic progression, and transgene-induced cosuppression is observed in the germ line but not in somatic cells. We used these unique features to dissect the role of brc-2 in the germ line from that in somatic cells. In situ hybridization of wild type animals revealed that brc-2 gene expression was higher in oocytes than in other germline cells, and was barely detectable in mitotic cells. In contrast, germ cells containing multicopies of the brc-2 transgene showed no significant in situ hybridization signal at any oogenesis stage, confirming that brc-2 expression was functionally cosuppressed in the transgenic germ line. RAD-51 foci formation in response to DNA damage was abrogated in brc-2-cosuppressed germ cells, whereas wild-type germ cells showed strong RAD-51 foci formation. These germ cells exhibited massive chromosome fragmentation and decompaction instead of six bivalent chromosomes in diakinesis. Accordingly, lethality was observed after the early stage of germline development. These results suggest that brc-2 plays essential roles in chromosome integrity in early prophase, and therefore is crucial in meiotic progression and embryonic survival.

Perspectives provided by leopard and other cat genomes: how diet determined the evolutionary history of carnivores, omnivores, and herbivores

  • Kim, Soonok;Cho, Yun Sung;Bhak, Jong;O'Brian, Stephen J.;Yeo, Joo-Hong
    • BMB Reports
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    • 제50권1호
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    • pp.3-4
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    • 2017
  • Recent advances in genome sequencing technologies have enabled humans to generate and investigate the genomes of wild species. This includes the big cat family, such as tigers, lions, and leopards. Adding the first high quality leopard genome, we have performed an in-depth comparative analysis to identify the genomic signatures in the evolution of felid to become the top predators on land. Our study focused on how the carnivore genomes, as compared to the omnivore or herbivore genomes, shared evolutionary adaptations in genes associated with nutrient metabolism, muscle strength, agility, and other traits responsible for hunting and meat digestion. We found genetic evidence that genomes represent what animals eat through modifying genes. Highly conserved genetically relevant regions were discovered in genomes at the family level. Also, the Felidae family genomes exhibited low levels of genetic diversity associated with decreased population sizes, presumably because of their strict diet, suggesting their vulnerability and critical conservation status. Our findings can be used for human health enhancement, since we share the same genes as cats with some variation. This is an example how wildlife genomes can be a critical resource for human evolution, providing key genetic marker information for disease treatment.

Expression of Pseudorabies Virus (PRV) Glycoproteins gB, gC and gD using Bacterial Expression System

  • Yun, Bit-Na-Rae;Bae, Sung-Min;Lee, Jun-Beom;Kim, Hee-Jung;Woo, Soo-Dong
    • International Journal of Industrial Entomology and Biomaterials
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    • 제23권1호
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    • pp.147-153
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    • 2011
  • The Pseudorabies (PR), also called Aujeszky's disease (AD), is an infectious viral disease caused by an alpha herpes virus and has domestic and wild pigs, as well as a wide range of domestic and wild animals, as the natural host. Pseudorabies virus (PRV) virions contain several envelope glycoproteins. Among them, gB, gC and gD are regarded as the major immunogenic proteins. We expressed these glycoproteins using the bacterial expression system and analyzed recombinant proteins. Expression of glycoproteins gC and gD were observed on SDS-PAGE or Western blot analysis, but gB was not. Optimal concentration of IPTG and inducing time were determined as 1.0 mM and 4 h, respectively, for the expression of both gC and gD in E. coli. A sodium dodecyl sulfate (SDS) was the most efficient detergent in solubilizing insoluble recombinant protein.

Bone Fractures in Raptors in the Daegu-Gyeongbuk Region: A Retrospective Study

  • Kim, Taeil;Kwon, Youngsam
    • 한국임상수의학회지
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    • 제33권5호
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    • pp.261-265
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    • 2016
  • The purpose of this study was to perform retrospective data collection of the sites and types of fracture in raptors in order to enable wildlife veterinarians to manage cases of fracture more effectively. This study included raptors with fracture, rescued between January 2013 and August 2015 in the Daegu-Gyeongbuk region in Republic of Korea. The data were collected from the medical reports and radiographic findings acquired from designated animal hospitals for wild animals, the Dongin Animal Hospital and the Kyungpook wildlife rescue center. The distribution, sites, and types of fracture, and outcomes of rescue and fracture management of the raptors included in this study were analyzed. Among the 31 birds included in this study, Falco tinnunculus was the most common species. Of the 42 sites of fracture, the diaphysis of the humerus was the most common site of fracture, and comminuted fracture was the most common type. Of the 31 birds, 13 were treated surgically. Intramedullary pinning with bandaging was the most common method of surgical treatment. While 7 of the 13 birds died, 2 were reintroduced into the wild, and 4 were kept captive. This study presents the evaluation of the data on the species, sites, and types of fracture, and treatment procedures and outcomes in raptors with fractures, rescued in the Daegu-Gyeongbuk region. The findings of this study could serve as a basic database for the treatment of fracture in raptors.

Mycobacterium genavense induced mycobacteriosis in an Indian peafowl (Pavo cristatus)

  • Oh, Yeonsu;Lee, Sang-Joon;Tark, Dong-Seob;Cho, Ho-Seong
    • 한국동물위생학회지
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    • 제44권2호
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    • pp.119-124
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    • 2021
  • The report describes an avian mycobacteriosis in a captive wild bird. A 7-year-old female Indian peafowl (Pavo cristatus) maintained in a zoo of Korea presented a gradual cachexia and eventually was found dead. At necropsy, severely atrophied pectoral muscles exposing the keel bone were noticed. Yellowish thick nodules in varying sizes were scattered in all lobes of lungs, liver and spleen, suggesting mycobacteriosis. Histopathologically, multifocal to coalescing granulomas surrounded by multinucleated giant cells were observed. Numbers of acid-fast bacilli were revealed in granulomas. Then, a series of molecular diagnostic techniques were followed: a nested PCR, DNA sequencing and bioinformatics analysis. It resulted as Mycobacterium genavense. The identification of M. genavense as an etiological agent suggested that it might serve as a risk factor for other captive wild animals, and for a potential zoonotic risk since M. genavense have been a definite cause of disseminated mycobacterial infection in immunocompromised people. To the authors' knowledge, this is the first report of avian mycobacteriosis with M. genavense in a captive Indian peafowl.

Prevalence and Phylogenetic Analysis of Coccidian Parasites from Wild Animals with Diarrhea in Jeonbuk Province, Korea

  • Myeongsu Kim;Phyo Wai Win;Yoonhee Kim;Seulgi Gim;Haerin Rhim;Jae-Ik Han
    • 한국임상수의학회지
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    • 제40권3호
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    • pp.189-196
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    • 2023
  • This study was conducted to determine genetic diversities of Eimeria spp. detected from wildlife. From January 2020 to December 2021, molecular analysis was conducted for Eimeria spp. detected from wildlife rescued in Jeonbuk province, Korea. Polymerase chain reaction targeting 18 s rRNA gene for Eimeria spp. detected from 8 domestic pigeon (Columba livia domestica), 1 Oriental turtle dove (Streptopelia orientalis), 1 Eurasian eagle owl (Bubo bubo), 1 Azure-winged magpie (Cyanopica cyanus), 1 Moorhen (Gallinula chloropus), and 1 raccoon dog (Nyctereutes procyonoides) was conducted for phylogenetic analysis. Domestic pigeon and Oriental turtle dove were bound to the same cluster. In addition, carnivorous Eurasian eagle owl and poultry were bound to the same cluster. These results suggest that Eimeria spp. can be shared between similar species regardless of species along the food chain, suggesting that wild birds could be carriers of Eimeria spp. in Korea.

Cross-Sectional and Skeletal Anatomy of Long-tailed Gorals (Naemorhedus caudatus) Using Imaging Evaluations

  • Sangjin Ahn;Woojin Shin;Yujin Han;Sohwon Bae;Cheaun Cho ;Sooyoung Choi;Jong-Taek Kim
    • Journal of Veterinary Science
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    • 제24권4호
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    • pp.60.1-60.8
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    • 2023
  • Background: Accurate diagnosis of diseases in animals is crucial for their treatment, and imaging evaluations such as radiographs, computed tomography (CT), and magnetic resonance imaging (MRI) are important tools for this purpose. However, a cross-sectional anatomical atlas of normal skeletal and internal organs of long-tailed gorals (Naemorhedus caudatus) has not yet been prepared for diagnosing their diseases. Objectives: The objective of this study was to create an anatomical atlas of gorals using CT and MRI, which are imaging techniques that have not been extensively studied in this type of wild animal in Korea. Methods: The researchers used CT and MRI to create an anatomical atlas of gorals, and selected 37 cross-sections from the head, thoracic, lumbar, and sacrum parts of gorals to produce an average cross-sectional anatomy atlas. Results: This study successfully created an anatomical atlas of gorals using CT and MRI. Conclusions: The atlas provides valuable information for the diagnosis of diseases in gorals, which can improve their treatment and welfare. The study highlights the importance of developing cross-sectional anatomical atlases of gorals to diagnose and treat their diseases effectively.