• 제목/요약/키워드: habitat adaptation

검색결과 44건 처리시간 0.025초

생물다양성 보전을 위한 기후적응지역 설정 연구 -삵의 서식지를 중심으로- (Spatial Planning of Climate Adaptation Zone to Promote Climate Change Adaptation for Endangered Species)

  • 이동근;백경혜;박찬;김호걸
    • 한국환경복원기술학회지
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    • 제14권6호
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    • pp.111-117
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    • 2011
  • This study attempts to facilitate climate change adaptation in conservation area by spatial planning of climate adaptation zone for endangered species. Spatial area is South Korea and select leopard cat (Prionailurus bengalensis) as a target species of this study. In order to specify the climate adaptation zone, firstly, Maximum entropy method (Maxent) was used to identify suitable habitat, and then core habitat was selected for leopard cat. Secondly, land use resistance index was evaluated and least cost distance was analyzed for target species. In this step we choose dispersal capacity of leopard cat to reflect species ecological characteristic. Finally, climate adaptation zone is described and adaptation measures are suggested. The presented approach could be generalized for application into conservation planning and restoration process. Furthermore, spatial planning of climate adaptation zone could increase heterogeneity of habitat and improve adaptive capacity of species and habitat itself.

여우(Vulpes vulpes) 복원을 위한 증식·복원장 공간 계획에 관한 연구 - 소백산국립공원 지역을 사례로 - (Reproducing and Restoring Space Planning for Red Fox (Vulpes vulpes) Restoration - Focusing on Sobaeksan National Park -)

  • 조동길;심윤진;홍진표;차진열
    • 한국환경복원기술학회지
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    • 제16권4호
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    • pp.1-14
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    • 2013
  • A species restoration plan requires a process where the first is to thoroughly study the target species, second is to provide them with an onsite reproduction and adaptation period, and finally, third is to release them to their natural habitat. This study focuses on the space planning for target species' successful onsite reproduction and adaptation. For the study, a site planning near Sobaeksan National Park was implemented with Red Fox's behavior and habitat characteristics in mind for its recovery, reproduction, and natural adaptation. During site selection and planning, the basic aim was to incorporate the existing site as much as possible thus reducing the impact on the environment from the recovery plan. In addition, for a stable recovery of the Red Fox population, the site was classified into three different areas : core area, buffer zone, and transition area. Then, the facilities that help Red Fox's reproduction and adaptation such as reproduction center, foraging site, adaptation training center were planned. Under the condition that the site will be off limit to the public, a limited number of paths for monitoring was provided. For the site's vegetation, the existing species were planted as much as possible with the addition of plants that the Red Fox consume. The facilities included as Red Fox's habitat were fox burrows for hiding and ecological ponds for drinking. From this study, the recovery of the endangered fox species is expected as well as the contribution to an effort to increase of awareness toward the biological resources in Korea through Nagoya protocol. Furthermore, it has the potential to change the public's attitude toward endangered species recovery projects through publicizing and providing experience to the national park visitors.

사철쑥의 내륙과 해안 자생지 생육과 포장 이식의 적응 (Adaptation of Farm Field Transplanting and Growth Habitat of Artemisia capillaris in Korea)

  • 송홍선;김성민
    • 한국약용작물학회지
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    • 제21권1호
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    • pp.49-53
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    • 2013
  • This study was performed to evaluate the adaptability of farm field soil transplanting and habitat growth in inland and seashore areas of Artemisia capillaris in South Korea. In habitat, Artemisia capillaris was distributed both in the inland and seashore area as hemicryptophyte, and it grows individually on the slope of the open sunlight. The inland and seashore soils of habitat was the slightly acid and weakly alkaline, respectively. Plant height was 55.6 cm, and it was higher in inland than that of the seashore area. The stem and branch number was less in inland than that of the seashore area. Flowering period was mid-August, and flower of inland blossomed early 1 ~ 3 days than that of the seashore area. The flowering and fruiting rate was slightly lower in inland than that of the seashore area. After transplanting of Artemisia capillaris, plant height was 71.7 cm, and it was higher 16.1 cm than that of the habitat. The stem and branch number was more than that of the habitat, and flower blossomed early 3 ~ 4 days than that of the habitat. Transplanting survival rate was 85.1%, it was slightly higher in inland than that of the seashore area.

Insect Adaptations to Changing Environments - Temperature and Humidity

  • Singh, Tribhuwan;Bhat, Madan Mohan;Khan, Mohammad Ashraf
    • International Journal of Industrial Entomology and Biomaterials
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    • 제19권1호
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    • pp.155-164
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    • 2009
  • The most important factors in environment that influence the physiology of insects are temperature and humidity. Insects display a remarkable range of adaptations to changing environments and maintain their internal temperature (thermoregulation) and water content within tolerable limits, despite wide fluctuations in their surroundings. Adaptation is a complex and dynamic state that widely differs in species. Surviving under changing environment in insects depends on dispersal, habitat selection, habitat modification, relationship with ice and water, resistance to cold, diapause and developmental rate, sensitivity to environmental signals and syntheses of variety of cryoprotectant molecules. The mulberry silkworm (Bombyx mori) is very delicate and sensitive to environmental fluctuations and unable to survive naturally because of their domestication since ancient times. Thus, the adaptability to environmental conditions in the silkworm is quite different from those of wild insects. Temperature, humidity, air circulation, gases and photoperiod etc. shows a significant interaction in their effect on the physiology of silkworm depending upon the combination of factors and developmental stage affecting growth, development, productivity and quality of silk. An attempt has been made in this article to briefly discuss adaptation in insects with special emphasis on the role of environmental factors and their fluctuations and its significance in the physiology of mulberry silkworm, B. mori.

기후변화 리스크 평가를 위한 생태계 유형분류 방안 검토 - 국내 토지피복분류 적용성을 중심으로 - (A Study on Categorizing Ecosystem Groups for Climate Change Risk Assessment - Focused on Applicability of Land Cover Classification -)

  • 여인애;배해진;홍승범
    • 환경영향평가
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    • 제26권6호
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    • pp.385-403
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    • 2017
  • 본 연구는 국내 생태분야 리스크 평가 및 적응대책 수립의 공간적 기준이 될 수 있는 생태계 유형분류방안 검토를 목적으로 하였다. 이를 위해, 생태분야 기후변화 리스크 평가와 적응대책의 특징, 국내외 리스크 평가에서 적용하는 생태계/서식지 유형분류 현황 및 관련 데이터를 조사하였다. 영국을 비롯하여 유럽 등지에서 일반적으로 생물종다양성 및 생태계서비스 평가를 위한 공간정보DB로 토지피복분류가 널리 활용되고 있음에 착안하여, 국내 토지피복분류의 적용성을 정량적으로 검토하였다. 그 결과, 기후변화 리스크 평가 및 적응대책 수립을 위한 생태계 유형분류 시 현재 국내 대분류 토지피복 체계만으로는 분류군별 서식 경향성을 거의 알 수 없기에 대분류를 그대로 적용하는 것은 한계가 있을 것으로 생각된다. 우리나라 국토 피복 전반을 차지하는 산림 생태계(62.3%) 및 농경지 생태계(25.0%) 유형의 세분화와 함께, 국토대비 면적은 작지만 다양한 분류군이 서식하는 습지생태계(2.9%), 특수 분류군이 서식하는 연안(0.4%) 및 해양생태계(0.6%), 도시생태계(6.1%)에 대한 분류가 고려되어야 한다. 추후 산림, 농경지 피복분류에 있어 중분류 체계 이하의 세분화가 필요하며, 국토 대비 면적에 비해 분류군의 서식지 선호비율이 높은 내륙습지, 해양/해안 서식지, 도시와 자연생태계의 전이지역 등에 대한 반영 역시 필요할 것으로 생각된다.

Organism-environment interactions and differential gene expression patterns among open-coastal and estuarine populations of Porphyra umbilicalis Kützing (Rhodophyta) in the Northwest Atlantic

  • Eriksen, Renee L.;Klein, Anita S.
    • Fisheries and Aquatic Sciences
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    • 제21권8호
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    • pp.28.1-28.12
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    • 2018
  • Intertidal macroalgae are exposed to many abiotic stress factors, and they must regularly react to changes in their environment. We used RNA-seq to describe how Porphyra umbilicalis (Rhodophyta) changes gene expression patterns to interact with different habitats. Tissue samples were taken from a typical habitat along the open-coast of the Northwest Atlantic, as well as from a rare, atypical habitat in an estuarine tidal rapid environment. Differential gene expression analyses suggest that pathogic bacteria and viruses may be a significant factor influencing the transcriptome in the human-impacted estuarine environment, but the atypical habitat does not necessarily induce more stress in Porphyra umbilicalis growing there. We found genes related to nitrogen transport are over-expressed in tissue from the open-coastal site compared to those from the estuarine site, where environmental N levels approach hypertrophic levels. Low N levels impede growth, but high levels are toxic to cells, and we use qPCR to show this species regulates expression of a putative high-affinity $NH_4{^+}$ transporter under low and high N conditions. Differences in expression of this transporter in these habitats appear to be inherited from parent to offspring and have general implications for adaptation to habitat in other species that are capable of asexual reproduction, as well as more specific implications for this species' use in aquaculture.

생태분야 기후변화 적응의 흐름과 발전방향 - 국내외 정책 및 연구기반을 중심으로 - (A Study on Development of Climate Change Adaptation in Ecosystem Sector - Focused on Policy and Research Base in Major Countries -)

  • 여인애;홍승범;박은진
    • 환경영향평가
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    • 제28권1호
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    • pp.1-22
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    • 2019
  • 본 연구에서는 국가 생태분야 기후변화 리스크 평가와 연계한 적응 정책 및 연구의 방향성에 대한 시사점을 마련하고자 하였다. 본 논문에서 검토한 적응 정책과 연구에 대한 해외 모범사례의 공통점은 국가 적응정책 수립 시 과학적 근거기반 구축 및 불확실성 저감을 목표로 국가단위에서 기후변화가 생물다양성과 생태계에 미치는 영향 연구를 강조한다는 점이다. 이에 비추어 추후 국가 정책 마련 시 기후변화 협약과 생물다양성 협약 등 효율적 통합적 준수를 위한 적응체계를 유도하고, 적응의 경제적 가치평가를 통한 정책 반영, 과학적 연구 프로그램 강화 및 기술 개발의 측면을 보강하여 보다 성공적인 국가적응 정책 구조를 정착해 갈 수 있어야 할 것이다. 특히 생태계 분야 적응방안이 보다 실효성 있게 실행되기 위해서는 우리나라 서식지 및 종의 기후변화 리스크 요소(위해, 노출, 취약성)에 대한 과학적 진단과 분석을 바탕으로 리스크를 평가하고 이에 대한 적응방안을 통합하여 고민하는 노력이 필요할 것이다.

토양유실을 고려한 양서파충류의 서식지 관리지역 선정방법 (A Methodology for Selection of Habitat Management Areas for Amphibians and Reptiles Considering Soil Loss)

  • 김지연;이동근;모용원
    • 한국환경복원기술학회지
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    • 제21권6호
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    • pp.55-69
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    • 2018
  • As disaster risk and climate change volatility increase, there are more efforts to adapt to disasters such as forest fires, floods, and landslides. Most of the research, however, is about influence of human activities on disaster and there is few research on disaster adaptation for species. Previous studies focusing on biodiversity in selecting conservation areas have not addressed threats of disaster in the habitats for species. The natural disasters sometimes play role of drivers of ecological successions in the long run, but they might cause serious problems for the conservation of vulnerable species which are endangered. The purpose of this study is to determine whether soil loss (SL) is effective in selecting habitat management areas for amphibians and reptiles. RUSLE model was used to calculate soil loss (SL) and the distribution of each species (SD) was computed with MaxEnt model to find out the biodiversity index. In order to select the habitat management area, we estimated the different results depending if value of soil loss was applied or not by using MARXAN, a conservation priority selection tool. With using MARXAN, conservation goals can be achieved according to the scenario objectives, and the study has been made to meet the minimum habitat area. Finally, the results are expressed in two; 1) the result of soil loss and biodiversity with MATRIX method and 2) the result of regional difference calculated with MARXAN conservation prioritization considering soil loss. The first result indicates that the area with high soil loss and low species diversity have lower conservation values and thus can be managed as natural disturbances. In the area where soil loss is high and species diversity is also high, it becomes where a disaster mitigation action should be taken for the species. According to the conservation priorities of the second result, higher effectiveness of conservation was obtained with fewer area when it considered SL in addition to SD, compared to when considered only biodiversity. When the SL was not taken into consideration, forest area with high distribution of species were important, but when SL considered, the agricultural area or downstream of the river were represented to be a major part of habitats. If more species data or disaster parameters other than soil loss are added as variables later, it could contribute as a reference material for decision-making to achieve various purposes.

다중기후모형을 활용한 동북아시아의 미래 생물기후권역 변화분석 (Analysis of Future Bioclimatic Zones Using Multi-climate Models)

  • 최유영;임철희;류지은;전성우
    • 환경영향평가
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    • 제27권5호
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    • pp.489-508
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    • 2018
  • 기후변화에 대응하여 보다 적극적인 생물보전전략 수립을 위해 생물 서식환경의 변화예측이 필요하며, 생물기후권역은 유용한 생태계 관리체계를 제공할 수 있다. 이에 따라 본 연구에서는 생물기후권역구축을 통해 동북아시아의 생물 서식환경을 파악하고, 생물 서식관점에서 기후변화의 영향을 분석하였다. Worldclim에서 제공하는 현재(1970~2000년) 기후자료 및 17개 전 지구 기후모형의 예측자료(RCP4.5, RCP8.5)를 이용하여 2050년대와 2070년대의 변화를 모의하였다. 먼저 현재와 미래의 주요생물기후변수(Aridity index, growing degree days, potential evapotranspiration seasonality, temperature seasonality)를 구축하여 동북아시아의 생물기후환경 특성을 파악하고, 기후변화에 따른 시공간적 변화를 분석하였다. ISODATA 군집분석으로 현재의 생물기후권역을 구분하고, MLC(Maximum Likelihood Classification)를 통해 미래의 권역변화를 예측하였다. 기후변화에 따라 대부분의 권역이 북상하는 경향성을 확인할 수 있었으며, 권역의 면적과 위도 분포변화를 분석함으로써 권역의 축소가 가장 두드러지게 나타나는 중국 남부에 위치한 권역을 집중 관리권역으로 제시하였다. 본 연구는 한반도를 포함한 동북아시아 지역의 다양한 기후변화 시나리오에 따른 영향평가를 바탕으로 향후 기후변화에 대응한 생물종 혹은 생태계 관련 적응정책 수립 시 활용 가능한 기초자료를 제공할 수 있을 것으로 사료된다.