• 한국환경생태학회지
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• 제30권5호
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• pp.896-907
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• 2016

본 연구는 희귀 및 특산식물과 멸종위기야생식물 II급으로 지정되어 있는 세뿔투구꽃의 자생지 환경을 조사하여 보전 및 복원 시 기초자료를 제공하고자 한다. 조사결과 세뿔투구꽃의 자생지는 해발고도 260-728m범위와 경사 $4-39^{\circ}$의 계곡부에 주로 생육하는 것으로 조사되었다. 식생 및 관속식물 조사결과 7개 지역의 20개 방형구내에서 조사된 관속식물은 총 147분류군이 출현하였으며, 각 조사구내 초본층 피도와 빈도를 기초로 한 세뿔투구꽃의 중요치를 산출한 결과 평균 24.3%로 나타났다. 종다양도는 1.23로 산출되었으며, 우점도와 균등도는 각각 0.22와 0.77로 확인되었다. 토양분석 결과 토성은 미사질양토(4site)와 사질양토(2site), 양토(1site) 순으로 나타났으며, 유기물함량은 7.83%, 전질소함량은 0.35%, pH는 5.69으로 측정되었다. 환경요인과 개체군특성에 기초한 상관분석에서는 세뿔투구꽃의 자생지에서 엽록소와 경사도간의 강한 부의상관이 인정되었고, 개화율과 토양습도는 부의상관이 인정되었다. 자생지의 안정적인 유지를 위해서는 서식지 보전이 중요하며 서식지 주변에 보호구역을 설정이 필요하다고 판단된다.

• 한국자원식물학회지
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• 제11권2호
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• pp.163-167
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• 1998

To produce several high-quality species of Chwinamul (Aster scaber, A. Tataricus, Ligularia fischeri), leaves of the plants grown in different natural habitats were anlayzed. Contents in vitamin C and $\beta$-carotene were generally higher in plants grown in the field. However, Aster scaber picked form Yongwol and A. tataricus from Mt.Taryong contained relatively higher vitamin c and $\beta$ carotene. Crude protein and fat contents varied depending on the growing area. Ca content was markedly higher in the plants grown in the natural havitats.

• 한국환경생태학회:학술대회논문집
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• 한국환경생태학회 2011년 학술대회 논문집 2호
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• pp.179-184
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• 2010

• 한국환경생태학회:학술대회논문집
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• 한국환경생태학회 2010년 학술대회 논문집
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• pp.1-14
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• 2010

• 한국환경복원기술학회지
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• 제23권5호
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• pp.45-58
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• 2020

This study was conducted to comprehend the spatial distribution characteristics, habitats and appearances of Hydropotes inermis by using the biotope mapping in Daebudo Island, Ansan-si. The result is base data to understand status and manage potential inhabitation of Hydropotes inermis in Daebudo Island through the Maximum Entropy model. The study used 105 traces from the primary investigation and 452 traces in the secondary investigation. The biotope types were distinquished Hydropotes inermis habitats largest from the order of natural forest (15.1%), natural coast (13.7%), marshy cultivated land (12.6%), and dry cultivated land (11.7%), and from the inhabitation trace results. Hydropotes inermis appearanced biotope types were the greatest in the order of cultivated land (49.73%) > forest (18.85%) > coast (7.00%) > grassland (6.28%). Since forests in Daebudo Island have low slope and altitude, it was concluded that Hydropotes inermis would live in most of the forests. A high number of Hydropotes inermis was found to appear in areas where the grassland is formed including cultivated lands (include unused paddies and fields) and marshy grasslands, which would result in direct damage of crops. According to the Maxent modeling analysis that used location information of Hydropotes inermis, the AUC value was 0.635 based on the ROC curve. In Daebudo Island, areas with over 0.635 potential inhabitation value are distributed all over the place, and it was concluded that each population would have a different scope of influence and home range. Hydropotes inermis living in Daebudo Island have high habitat suitability mainly around the cultivated lands near the roads, but due to the bare lands and roads, it is expected that their habitats would be fragmented and damaged, which would have a direct and indirect effect in maintaining the Hydropotes inermis population. Also, considering habitat disturbance, diverse methods for reducing damage including capturing some individuals within the limit that does not disperse Hydropotes inermis population in Daebudo Island must be carried out.

• 한국어류학회지
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• 제20권2호
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• pp.97-104
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• 2008

한국산 고유 담수 어종인 참갈겨니와 눈동자개의 안구 외부형태와 망막구조를 광학현미경과 전자현미경으로 비교 조사하였다. 참갈겨니는 안구의 크기뿐만 아니라 수평안경/체장, 수평안경/두장의 비율이 모두 눈동자개보다 크게 나타났고 다만, 수정체직경/수평안경은 눈동자개가 더 크게 나타났다. 망막의 시각세포층에서 참갈겨니는 크게 단일원뿔세포와 이중원뿔세포, 두 종류의 원뿔세포를 가지며 단일원뿔세포는 긴단일원뿔세포와 짧은단일원뿔세포로 나뉜다. 반면 눈동자개는 긴단일원뿔세포와 짧은단일원뿔세포로 구분할 수 없는 단지 단일원뿔세포로만 구성되어 있었다. 또한 원뿔세포의 배열구조에 있어서도 참갈겨니는 보다 치밀한 열구조로 배열되어 있는 반면 눈동자개는 성긴 불규칙한 구조로 배열되어 있었다. 이상과 같이 참갈겨니와 눈동자개의 안구 및 망막의 구조적 차이는 2종 간의 생태학적 특성과 밀접한 관련이 있는 것으로 생각된다.

• Journal of Forest and Environmental Science
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• 제35권1호
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• pp.61-68
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• 2019

The purpose of this study is to evaluate the natural habitat of Hotaria unmunsana Doi, which was first discovered at Mt. Unmun also represents a landscape indicator species for Daegu and Gyeongbuk provinces, and Luciola lateralis Motschulsky, which is the object of experiential activation at festivals in some cities in the region. The spatial range of this study is limited by Daegu City and Gyeongbuk province, and is used to predict the preference of firefly for altitude, slope, direction, shaded relief, riparian buffer zone, river environment, and farmland to analyze the area that best matches the habitat of fireflies. As a result, fireflies are highly influenced by altitude and there may be no large-scale habitats in some areas through the Nakdong and the Baekdu mountain ranges, which occur at high altitude. In most of the cities, we found major habitats around the streams and wetlands. By region, the sites were widely distributed around the cities focused on Nakdong River, and many habitats emerged around the Nakdong River tributary and gentle slopes. In order to preserve and spread the habitat of fireflies, the physical environment as well as their relationship with food chains and symbiotic organisms should be established, and excessive use of pesticides and herbicides in agricultural areas should be avoided.

• Proceedings of the National Institute of Ecology of the Republic of Korea
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• 제3권3호
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• pp.129-138
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• 2022

Reintroduction programs have been promoted across the world to recover and rehabilitate endangered birds through ex situ captive breeding and releasing to the nature. The ultimate aims of these reintroduction programs are recovery of sustainable populations in natural habitats. To ensure the success of the reintroduction programs, it is necessary to examine the followings in order to increase the success rate of releasing along with the development of captive breeding techniques: 1) Adequate habitat provision, 2) adaptability of captive-bred individuals, 3) survivability of released individuals, and 4) social interest and will. Before releasing captive-bred individuals, it should be reviewed whether there are habitats in which the limiting factor is removed, and assessed their long-term safety. The quantity and quality of the released individuals must be considered to increase the chances for mate selection, maintain genetic diversity, and acquire the ability to adapt to the wild. The release method must be decided in consideration of characteristics of the target habitats and individuals, and rational means such as careful observation, evaluation, and feedback must be provided throughout the release process. For the long-term success of recovery projects, social awareness, sustainable support, and related experts are needed. Satisfying these criteria can help to increase the success rates of reintroduction programs. For the bird reintroduction program in the future, the feasibility of the methods and procedures must be closely reviewed before starting.

• 대한환경공학회지
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• 제31권8호
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• pp.611-618
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• 2009

도로건설은 생물서식지를 단절시키고 고립시키는 등 생태환경 훼손이 우려되고 있으며, 도로건설에 따른 환경영향을 최소화하고 생물서식환경을 보존하기 위한 종합적인 평가기법의 개발 및 적용에 관한 연구가 필요하다. 따라서 본 연구에서는 자연생태계의 자연성뿐만 아니라 동물이 서식하는 생태계의 기능을 고려한 보전가치평가기법을 적용하여 이를 도면화 할 수 있는 서식처평가지도를 개발하고자 하였다. 서식처보전가치평가에 적용한 평가 항목은 크게 자연성, 희귀성, 기능성 항목의 3가지 항목으로 선정하였으며 이에 따른 세부평가항목을 구성하였다. GIS를 이용하여 평가기준에 따라 중요도에 대한 수치지도를 작성하였다. 연구결과 나타난 수치지도는 단순히 동물과 식물의 종 조성이나 분포에만 한정된 것이 아니라 서식처 보전을 위한 종합적인 생태계 평가기법이 가능함을 보여주었고, 이를 통하여 생태계 파괴 및 생물 서식처 단절을 최소화 한 환경친화적인 도로건설에 이용될 수 있을 것으로 판단된다.

• 한국미생물·생명공학회지
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• 제47권4호
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• pp.555-564
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• 2019

Biodiesel is produced through the transesterification process in the presence of alcohol and a catalyst that catalyzes the conversion of triglycerides to esters and glycerol compounds. A more optimal product conversion can be achieved using enzymes, such as lipase. Lipase is reported to be produced in osmophilic yeasts due to the low water content in their natural habitats. Wild forest honey is one of the osmophilic natural habitats in Indonesia. However, lipase-producing yeast has not been reported in the Indonesian honey. In this study, we screened the lipase-producing yeasts isolated from wild forest honey collected from Central Sulawesi. The production profile and activity of lipase were determined at different pH values and temperatures. One promising yeast was isolated from the honey, which was identified as Zygosaccharomyces mellis SG 1.2 based on ITS sequence. The maximum lipase production (24.56 ± 1.30 U/mg biomass) was achieved by culturing the strain in a medium containing 2% olive oil as a carbon source at pH 7 and 30℃ for 40 h. The optimum pH and temperature for lipase activity were 6 and 55℃, respectively. The enzyme maintained 80% of its activity upon incubation at 25℃ for 4 h. However, the enzyme activity decreased by more than 50% upon incubation at 35 and 40℃ for 2 h. This is the first study to report the lipase producing capability of Z. mellis. Further studies are needed to optimize the enzyme production.