• Journal of the Korean earth science society
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• v.23 no.7
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• pp.543-551
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• 2002

The purpose of this study is to investigate the types of middle school students’ responses to dinosaur extinction inconsistent with the students’ previous conceptions. The types of texts about ‘the cause of dinosaur extinction’ were developed; one that was based on students’ previous ideas, while the other was based on conflicting materials. The students’ responses to the conflict materials were classified into six types: rejection, reinterpretation, uncertainty, belief decrease, partial theory change, and conceptual change. These results show that the use of conflict materials does not always promote conceptual change. Therefore, teachers will be able to help students change their conceptions in science classrooms by understanding students’ various responses to conflict materials and designing instructional strategy concretely.

• Journal of Digital Convergence
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• v.18 no.8
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• pp.385-390
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• 2020

The purpose of this study is to analyze the cases of endangered species protection campaigns of domestic and foreign enterprises and to present improvement points and direction. Therefore, this study analyzed the cases and characteristics of the campaign by setting above small and medium sized domestic and foreign companies as subjects for research. The study found that there were mainly campaigns conducted in cooperation with large environmental organizations in Korea, and as an IT powerhouse, there were examples of such campaigns. Foreign companies independently participated in environmental protection, and cases of fashion and cosmetic brand campaigns were easily found. Based on these characteristics, this study aims to present improvements and directions for animal protection campaigns in the future.

• Korean Journal of Environment and Ecology
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• v.19 no.2
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• pp.112-118
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• 2005

Based on the specific plant species for environmental assesment by the Ministry of Environment(MoE), a total of 68 taxa were identified; 29 taxa for the floristic degree(FD) I, 12 taxa for the FD II, 11 taxa for the FD III, 9 taxa for the FD IV and 6 taxa for the FD V. The endangered plant species, in Woraksan National Park, such as Lilium cernum and Berchemia berchemiaefolia are categorized as the Conservation Degree (CD) II which is designated by the MoE. The rare and endangered species such as Crypsinus hastatus, Lilium cernum, Berchemia berchemiaefolia, Lilium callossum, Gastrodia elata, Aristolochia contorta, Koelreuteria paniculata, Rhododendron tschonoskii, Scopolia japonica, Cypripedium macranthum, Paeonia japonica and Thymus quinquecostatus including 12 plant taxa are categorized as Rare and Endangered Plant Species by the Korea Forest Service.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.745-749
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• 2012

국내 주요하천은 지속적인 산업화와 난개발로 인해 생태계파괴 및 수변생물의 서식처 환경 악화로 하천 생태계에 많은 악영향을 받고 있다. 그러나 1990년대 이후 국내에서는 하천의 기능과 생물의 다양성, 하천환경 및 생태학적인 가치와 중요성에 대한 인식이 매우 커짐에 따라 하천의 생태적 기능을 매우 중요시 하고 있으며, 하천의 난개발로 인한 피해를 복원하기 위해 활발한 연구가 진행되고 있다. 대표적인 연구로 생태계 건전화 개념을 도입하여 담수성 어류 서식처 제공 및 이동에 필요한 유량을 산정한 한국 수자원공사(1995)의 연구가 있으며, 김규호 등(1996a, 1996b)은 물고기 서식처 환경 중 특히 수심과 유속 등 수리조건을 유지하기 위한 최소유량 산정 방법을 제시하였다. 또한 노경범(2011)은 섬진강의 하천환경 회복을 위한 연구대상 구간에서의 대표어종을 선정하여 서식처 특성 파악을 위해 하천 특성을 연구하였다. 이와 같이 현재 국내에서도 하천의 기능과 생태학적 기능을 위한 노력과 연구가 진행되고 있다. 그러나 생태학적 서식처 연구에서는 아직까진 미진한 부분이 많이 있다. 그 예로 보호종이나 멸종위기어종과 같은 생물의 서식처 확보를 위한 연구가 아직까지는 많은 노력과 연구가 필요한 상태이다. 본 연구에서는 환경부에서 지정한 멸종위기 1급 어종인 퉁사리를 대상으로 서식환경 특성 연구를 진행하였으며, 퉁사리의 생태학적 서식특성과 현재 지석천 상류 유역에서 관찰되고 있는 서식구간을 중심으로 MD-SWMS (Multi-Dimensional, Surface Water Modeling System) 모형을 이용하여 수리특성 분석을 수행하였다. 이를 위해 하상재료 입도분석을 실시하였으며, 그 결과 입도가 큰 굵은모래 및 잔자갈, 굵은자갈로 구성되어 있음을 알 수 있었다. 또한, 수리학적 특성분석결과 서식구간 내에서는 비교적 빠른 유속이 나타났다. 이러한 퉁사리의 서식환경의 특성 분석으로 서식구간 내 입도가 큰 하상재료로 구성되어 있으며, 퇴적구간이 생성되지 않을 정도의 유사이송량과 유속이 필요할 것으로 분석되었다. 향후 퉁사리의 장기적인 서식환경 조성과 보존을 위해 대상구간의 유사이송의 연구와 실측 및 수변환경 모니터링을 통한 다양한 연구가 진행되어야 할 것으로 판단된다.

• Korean Journal of Poultry Science
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• v.49 no.3
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• pp.167-180
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• 2022

Aves including chickens are currently one of the most representative vertebrates on the planet. More than 10,000 bird species are distributed among various regions around the world. Dinosaurs, which evolved from archosaurs, were once assumed to have gone extinct during the Cretaceous-Paleozoic extinction period. Since the mid-1990s, abundant dinosaur fossils have been found in China and various other parts of the world. Research articles on phylogenetic, evolutionary, and genomic studies of fossil taxa show that birds are living theropod dinosaurs. This review describes the link between birds and dinosaurs based on studies of their skeletal structures, feathers, respiratory organs, chromosomes, and metabolism. Birds are the only theropod dinosaurs that survived the mass extinction 66 million years ago. Dinosaurs did not go extinct and we are still living in the age of the dinosaurs.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.26 no.6
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• pp.205-220
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• 2023

This study aimed to analyze the needs and interests of the public on endangered wildlife using complaint big data. We collected 1,203 complaints and their corresponding text data on endangered wildlife, pre-processed them, and constructed a document-term matrix for 1,739 text data. We performed LDA (Latent Dirichlet Allocation) topic modeling and network analysis. The results revealed that the complaints on endangered wildlife peaked in June-August, and the interest shifted from insects to various endangered wildlife in the living area, such as mammals, birds, and amphibians. In addition, the complaints on endangered wildlife could be categorized into 8 topics and 5 clusters, such as discovery report, habitat protection and response request, information inquiry, investigation and action request, and consultation request. The co-occurrence network analysis for each topic showed that the keywords reflecting the call center reporting procedure, such as photo, send, and take, had high centrality in common, and other keywords such as dung beetle, know, absence and think played an important role in the network. Through this analysis, we identified the main keywords and their relationships within each topic and derived the main issues for each topic. This study confirmed the increasing and diversifying public interest and complaints on endangered wildlife and highlighted the need for professional response. We also suggested developing and extending participatory conservation plans that align with the public's preferences and demands. This study demonstrated the feasibility of using complaint big data on endangered wildlife and its implications for policy decision-making and public promotion on endangered wildlife.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.26 no.6
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• pp.221-234
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• 2023

This study was conducted to develop a habitat assessment system for the endangered wildlife II Kirengeshoma koreana Nakai through in-depth interviews with experts based on field surveys and environmental characteristics through spatial data analysis and literature research. Evaluation factors were selected based on the survey results of 31 variables for 23 K. koreana habitats. Afterwards, the importance and evaluation range for each assessment factor were selected. The selection of survey variables, assessment factors, importance of each factor and assessment range was conducted through in-depth interviews with experts at each stage. As a result, the assessment factors and importance were 16% for precipitation of the wettest month, 10% for vegetation zone, 12% for vegetation type, 10% for crown canopy vitality, 14% for tree layer coverage, 13% for drainage grade, 12% for soil depth, and 13% for distance to stream including dry stream. This study provides basic ecological information and a habitat assessment system for K. koreana habitats. Therefore, it can be used as primary data for preparing an endangered wildlife conservation policy, preparing a habitat improvement plan, and selecting an alternative habitat.

• Journal of Korean Society of Forest Science
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• v.101 no.1
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• pp.7-19
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• 2012

After having announced legislation for threatened or endangered species on the List of Endangered and Threatened Wildlife and Plants in 2005, the Korea Ministry of Environment proposed (in June 2011) amending the list, thereby delisting or reclassifying endangered species using new quantitative criteria for two levels (I and II), as well as status reviews. The new legislation included 40 species remained in their original endangered status, but 19 species were delisted, 5 species were proposed as candidates for delisting, 29 species were given a new endangered listing, and 3 species were proposed for an endangered listing in Korea. We assessed the threatened status of 98 plants using the IUCN Red List Criteria (version 3.1) at the global level, and compared the Ministry's revised criteria with the IUCN Red List Criteria and ESA criteria used in the USA. Most species proposed by the Ministry do not qualify as threatened and one of the major difficulties found in applying IUCN Red List Criteria at the global scale was a lack of knowledge on the status of species at broader geographic scales and the perceived difficulty this causes. Under the current classification process, many endangered species, such as Abeliophyllum distichum, Leontice microrhyncha, Echinosophora koreensis, Leontopodium coreanum, Iris odaesanensis, and Corylopsis coreana at global level were excluded here. Knowledge gaps and uncertainties mean that the number of taxa at high risk of extinction may be substantially greater than is currently understood. Due to a lack of information on its taxonomic status, currently there is controversy over the Red List status of Physocarpus insularis. Also, Caragana koreana, which was an invalidly published name, should be excluded here. Although the Korea Ministry of Environment insisted this procedure was conducted by applying the modified IUCN threat categories and definitions, this evaluation has been carried out based only on subjective views and misapplication of the IUCN Red List Criteria. The current listings by the Korea Ministry of Environment should be challenged. We suggest that broad species concepts on endemic species are applied and also criteria that adequately address the proper quantitative knowledge should be used. It is suggested that the highest priorities for the Red List should be given to endemic species at least in the Korean peninsula first at global scale.

• Korean Journal of Environment and Ecology
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• v.16 no.4
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• pp.387-403
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• 2003

The vascular plants in Manbokdae-Yeowonjae section of the Baekdudaegan were consisted of 502 taxa; 104 families,305 genus,439 species, 60 varieties, 3 forma. From the floristic point of view, the Baekdudaegan of Manbokdae-Yeowonjae section belongs to the southern province in Korea. The rare and endangered plants designated by Korea Forest Service were Abies koreana, Pedicularis verticillata, Patrinia saniculaefolia, Hololeion maximowiczii, Lilium callolsum, Paeonia obovate, Tricyrtis dizutata and VioEa diamantica, and Cymbidium goeringii. The Korean endemic species were Abies koreana, Patrinia saniculaefolia, Vicia unijuga, Stewartia koreana, Cornus walteri, Weigela subsessilis, Saussurea seoulensis, Tyicyrtis dilatata, Hosta capitata, Clematis trichotoma et at.

• Korean Journal of Environment and Ecology
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• v.16 no.4
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• pp.345-358
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• 2003

The vascular plant species in the areas of Gonamsan and Shiribong in the Baekdudaegan were summarized as 295 texa: 89 families, 193 genus, 245 species, 44 varieties and 6 forms.10 taxa were recorded in the surveyed areas as the Korean endemic plants: Hosta capitat (Liliacease), Polygonatum lasianthum var. corenum (Liliaceae), Chloranthus japonicus (Cloranthaceae), Salix hulteni (Salicaoeae), Clematis richotoma (Ranunculaceae), Spiraea prunifolia for. simpliciflora (Rosaceae), Vicia unijuga (Fabaceae), Viola albida (Violaceae), cornus walter(Cornaceae), Weigela subsessilis (Caprifoliaceae).According to the list of Korean rare and endangered plants complied in the studied areas:Iris ensata var. spoyanea(Iridaceae), Viola albida (Vioaceae) and Aristolochia contorta (aristolochiaceae) Due to the rapid destruction and increase of visitors and the studied areas are located close to the villages, the naturalized plant species in the areas were more frequently appeared than the rare and endangered plant species.