• 제목/요약/키워드: Vulnerable species

검색결과 204건 처리시간 0.026초

한반도 주요 산정의 식물종 분포와 기후변화 취약종 (Distribution of High Mountain Plants and Species Vulnerability Against Climate Change)

  • 공우석;김건옥;이슬기;박희나;조수현
    • 환경영향평가
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    • 제23권2호
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    • pp.119-136
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    • 2014
  • This work aims to select the potentially vulnerable plant species against climate change at alpine and subalpine belts of Mts. Sorak, Jiri, and Halla, from central, southern, southern insular high mountains of the Korean Peninsula, respectively. The selection of global warming related vulnerable plants were performed by adapting various criteria, such as flora, endemicity, rarity, floristically specific and valuable species, species composition at mountain summits, horizontal and vertical ranges of individual species, and their distributional pattern in the Korean Peninsula. Line and quadrat field surveys along the major trails from all directions at height above 1,500 meters above sea level of Mts, Sorak, Jiri and Halla were conducted each year during spring, summer, and autumn from 2010 to 2011. Based upon above mentioned eight criteria, high level of climate change related potentially vulnerable arboral plants, such as Rhododendron aureum, Taxus caespitosa, Pinus pumila, Oplopanax elatus, Vaccinium uliginosum, and Thuja koraiensis are noticed from at subalpine belt of Mt. Sorak. Species of Abies koreana, Rhododendron tschonoskii, Oplopanax elatus, Taxus cuspidata, Picea jezoensis, and Juniperus chinensis var. sargentii belong to climate change concerned vulnerable species at subalpine belt of Mt. Jiri. High level of climate change related species vulnerability is found at alpine and subalpine belts of Mt. Halla from Diapensia lapponica var. obovata, Salix blinii, Empetrum nigrum var. japonicum, Vaccinium uliginosum, Juniperus chinensis var. sargentii, Taxus cuspidata, Rhamnus taquetii, Abies koreana, Hugeria japonica, Prunus buergeriana, and Berberis amurensis var. quelpartensis. Countermeasures to save the global warming vulnerable plants in situ are required.

Identification of Molecular Markers for Population Diagnosis of Korean Fir (Abies koreana) Vulnerable to Climate Change

  • Kim, Dong Wook;Park, Da Young;Jeong, Dae Young;Park, Hyeong Cheol
    • Proceedings of the National Institute of Ecology of the Republic of Korea
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    • 제1권1호
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    • pp.68-73
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    • 2020
  • Korean fir (Abies koreana) is an evergreen coniferous tree species that is unique to South Korea. A. koreana is found in a limited sub-alpine habitat and is considered particularly vulnerable to climate change. Identification of populations vulnerable to climate change is an important component of conservation programs. In this study, a heat stress-induced transcriptome RNA-seq dataset was used to identify a subset of six genes for assessment as candidate marker genes for ecologically vulnerable populations. Samples of A. koreana were isolated from ecologically stable and vulnerable regions of the Halla and Jiri mountains, and the expression levels of the six candidate markers were assessed using quantitative real-time polymerase chain reaction. All six of the candidate genes exhibited higher expression levels in samples from vulnerable regions compared with stable regions. These results confirm that the six high temperature-induced genes can be used as diagnostic markers for the identification of populations of A. koreana that are experiencing stress due to the effects of climate change.

Genetic Variation and Conservation of the Endangered Species Cotoneaster wilsonii (Rosaceae) from Ulleung Island

  • Park, Jiwon;Lee, Junsoo;So, Soonku;Kim, Muyeol
    • 식물분류학회지
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    • 제39권3호
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    • pp.125-129
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    • 2009
  • The genetic diversity plays a significant role in determining a species' survival and perseverance. Endangered species often lack genetic variation, which makes them vulnerable to numerous dangers of extinction including selection, genetic drifts and human interference. Knowing an endangered species' genetic background greatly enhances conservation efforts since it reveals why, what and how to conserve that species. Cotoneaster wilsonii is an endangered plant species endemic to Ulleung island, but not enough genetic research has been done on this taxon for its effective conservation plans. In this study, three populations of C. wilsonii in Ulleung island underwent allozyme analysis through starch gel electrophoresis. 10 loci were analyzed and F-statistics was calculated. Overall data indicated that C. wilsonii possessed low genetic diversity with intense inbreeding, heterozygote deficiency and low differentiation among populations. These results implied that C. wilsonii was recently introduced to the Ulleung island from ancestor species, and did not have much time to differentiate. Current status of C. wilsonii habitats is very fragile and vulnerable, with increasing tourism constantly threatening the species' survival. It is very likely that C. wilsonii will become extinct in near future unless organized conservation protects its populations and genetic diversity.

서울시 및 경기도의 생태계교란식물 취약지역 평가 (Regional Vulnerability Assessment of Invasive Alien Plants in Seoul and Gyeonggi Province)

  • 박현철;이관규;이정환
    • 한국환경복원기술학회지
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    • 제18권6호
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    • pp.1-13
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    • 2015
  • This study was conducted to develop an environmental index for assessing the vulnerability of areas with invasive alien plants. To that end, "Regional Vulnerability Numerical Index" (RVNI) was developed with a spatial statistical technique and applied to Seoul and Gyeonggi-do area first. The results are as follows. First, RVNI was high in stream areas. Second, RVNI was lowest in mountain areas. It indicates that stream areas are vulnerable to invasive alien plants. In terms of regions, Guri City is most vulnerable and Gapyeong-gun is the least vulnerable. To expand and manage the invasive alien plants, a control protocol should be developed by considering the physiology and ecology by invasive alien plant. Also, related policies should be pursued based on the results. Thus, the findings of this study can be used as baseline data for setting policies for invasive alien species management.

자병산 일대의 호석회 및 혐석회식물의 분류 (Classification of Calcicoles and Calcifuges in Mt. Jabyeong)

  • 김병우;오영주
    • 동굴
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    • 제61호
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    • pp.17-46
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    • 2000
  • Mt. Jabyeong(872.5m), limestone region in the Taebaek mountains, located in 37° 32'N, 129° 25'E and in Sangye-ri, Okgye-myeon, Gangreung-si and Samok-ri, Imgye-myeon, Jeongseon-gun, Gangwon-do. The purposes of this study were to investigate the floristic composition from 1997 to 1998 in Mt. Jabyeong and report the distribution of Korean endemic plants, rare and vulnerable plants, calcicoles and calci fuges, The vascular plants in this area were composed of 93 families, 313 genera, 3 subspecies, 57 varieties, 13 forms, 495 species, totaling 568 taxa. Among the vascular plants, 21 taxa were Korean endemic plants and 7 taxa were rare and vulnerable plants. Calcicole and calcifuge plants in this study area were composed of 21 families, 30 genera, 36 species and 14 families, 15 genera, 17 species. The soil pH values of study site in Mt. chabyoung were ranging 7.4∼8, which showed that this site was a mostly limestone area with alkaline soil. And soil depth was formed to a relative thin layer, mostly 2~4cm thickness. This site showed high content of moisture and organic matter which were ranging 40-45% and 15-25%, respectively.

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보호지역 관리를 위한 생물다양성 평가 (The biodiversity representation assessment in South Korea's protected area network)

  • 최혜영;;주우영;권혁수
    • 한국환경복원기술학회지
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    • 제23권1호
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    • pp.77-87
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    • 2020
  • National parks and other protected areas often do not adequately protect national biodiversity because they were originally created for socio-economic and/or aesthetic values. The Korean government has committed to expanding the extent of protected areas to fulfill its commitments to the Aichi Biodiversity Convention. To do so, it is necessary to quantify the current levels of biodiversity representation within existing protected areas and to identify additional conservation needs for vulnerable species and ecological systems. In this study, we assess the proportion of species ranges found in South Korea's protected areas, for the species documented in the 3rd National Ecosystem Survey. We modeled the range distribution of 3,645 species in the following taxonomic groups; plants (1,545 species), mammals (35), birds (132), herptiles (35), and insects (1,898) using the MaxEnt species distribution model and calculated how much of each species' range is within protected areas. On average, 17.4% of plant species' ranges are represented in protected areas, while for mammals and insects an average 12.0% is currently conserved. Conservation representation for herptiles averages 9.3%, while it is 8.6% for birds. Although large proportions of species that have restricted distributions should be represented in protected areas, 17 plant species, two insects (Parnassius bremeri and Lasioglossum occidens), and one bird species (Phylloscopus inornatus) with ranges smaller than 1,000 ㎢ have less than 10% of their ranges within protected areas. Establishing specific conservation goals such as the protection of endangered species or vulnerable taxonomic groups will increase the efficiency of the biodiversity conservation strategies. In addition, lowland coastal areas are critical for biodiversity conservation because the protected areas in South Korea are mainly composed of high mountainous areas.

지구 온난화에 따른 국내 멸종위기 야생동물의 민감도 및 취약성 분석 (Analysis of Sensitivity and Vulnerability of Endangered Wild Animals to Global Warming)

  • 김진용;홍승범;신만석
    • 한국기후변화학회지
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    • 제9권3호
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    • pp.235-243
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    • 2018
  • Loss of favorable habitats for species due to temperature increase is one of the main concerns of climate change on the ecosystem, and endangered species might be much more sensitive to such unfavorable changes. This study aimed to analyze the impact of future climate change on endangered wild animals in South Korea by investigating thermal sensitivity and vulnerability to temperature increase. We determined thermal sensitivity by testing normality in species distribution according to temperature. Then, we defined the vulnerability when the future temperature range of South Korea completely deviate from the current temperature range of species distribution. We identified 13 species with higher thermal sensitivity. Based on IPCC future scenarios RCP 4.5 and RCP 8.5, the number of species vulnerable to future warming doubled from 3 under RCP4.5 to 7 under the RCP8.5 scenario. The species anticipated to be at risk under RCP 8.5 are flying squirrel (Pteromys volans aluco), ural owl (Pteromys volans aluco), black woodpecker (Dryocopus martius), tawny owl (Strix aluco), watercock (Gallicrex cinerea), schrenck?s bittern (Ixobrychus eurhythmus), and fairy pitta (Pitta nympha). The other 10 species showing very narrow temperature ranges even without normal distributions and out of the future temperature range may also need to be treated as vulnerable species, considering the inevitable observation scarcity of such endangered species.

가야산국립공원 기후변화취약종의 분포 및 보전방안 (Conservation Measures and Distribution of Vulnerable Species for Climate Change in Gayasan National Park)

  • 김윤영;임효선;한세희;지성진;소순구
    • 한국자원식물학회지
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    • 제30권2호
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    • pp.167-175
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    • 2017
  • 가야산국립공원 내의 기후변화 취약 산림식물 및 국가기후 변화 지표 생물종을 파악하기 위해 2016년 3월부터 10월까지 총 28회에 걸쳐 조사하였다. 그 결과 기후변화 취약종은 총 39분류군이 분포하였고 북방계 11분류군, 남방계 2분류군, 관심식물은 26분류군으로 확인되었으며, 이중 자생종은 33분류군으로 확인되었다. 가야산국립공원의 아고산지역에 분포하는 기후변화 취약종으로는 전나무, 구상나무, 잣나무, 사스래나무, 매발톱나무, 흰참꽃나무, 산앵도나무, 설앵초, 기생꽃, 백리향, 병풍쌈, 솔나리가 해당되었으며, 이들은 수직적 분포역이 매우 좁은 것으로 확인됨에 따라 지구온난화의 영향에 취약할 것으로 예상된다. 아울러, 기후변화 취약종에 포함되지 않지만 본 지역의 산정에 자생하고 있는 한라송이풀, 세모산부추, 숙은처녀치마 등의 고유종과 식물구계학적 특정식물 V등급에 해당하는 여우꼬리풀, 구름병아리난초 등도 기후변화에 매우 취약할 것으로 예상되므로 이들에 대한 보전 방안이 절실하게 요구되며, 산정에 분포하는 잔존종에 대한 장기적인 모니터링을 통하여 기후변화취약종을 보다 객관적이고 타당한 분류군으로 재선정할 필요가 있다고 판단된다.

전남지방에 분포하는 난대 자원식물 - 희귀특산 목본식물을 중심으로 - (Resoures Plants Distributed in the Warm-temperature Zone of Jeonnam Province)

  • 유한춘
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2019년도 춘계학술대회
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    • pp.23-23
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    • 2019
  • 전남지역은 도서지역이 많고 지역적 특성으로 인하여 다양한 식물들이 자생하고 있는데 이중 희귀특산식물은 217종으로 조사되었다. 그 중에서 난대림 지역에 생육하고 있는 목본 희귀식물 및 특산식물을 중심으로 지리적 분포위치와 생육상태 등을 보고하고자 한다. 전남지역에 분포하는 멸종위기종(CR)은 35종으로 나타났으며 이 중 목본식물은 초령목(신안), 섬다래(완도), 조도만두나무(진도), 덩굴옻나무(여수), 거문도닥나무(고흥, 여수)등이 비교적 양호하게 자생하고 있다. 위기종(EN)은 37종에서 목본식물은 왕자귀(목포, 무안), 백서향(신안), 나도은조롱(완도), 박달목서(여수, 신안) 등이 자생하고 있다. 취약종(VU)은 54종으로 목본식물은 백량금(완도, 신안), 황근(완도), 붓순나무(진도), 모감주나무(완도), 산닥나무(영암, 진도)등이 자생하고 있다. 약관심종(LC)은 36종으로 목본식물은 검팽나무(여수), 이팝나무(완도, 고흥), 녹나무(완도, 진도), 털조장나무(보성) 등이 양호하게 자생하고 있다.

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지리산 기후변화 취약수종 분포지의 산림식생 유형 및 희귀-특산식물 분포 특성 (Vegetation Type Classification and Endemic-Rare Plants Investigation in Forest Vegetation Area Distributed by Vulnerable Species to Climate Change, Mt. Jiri)

  • 김지동;박고은;임종환;윤충원
    • 한국산림과학회지
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    • 제107권2호
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    • pp.113-125
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    • 2018
  • 우리나라의 아고산대는 기후변화에 지역적 취약성을 띄는 지역으로, 아고산대의 산림식생은 기후변화에 따른 영향을 관찰할 수 있는 중요한 기초지표 중 하나이다. 본 연구는 지리산 아고산대의 기후변화 취약수종 분포지의 산림식생을 대상으로 하여 식물사회학적 식생 유형 및 희귀-특산식물 분포 특성에 대해 구명하였다. 2015년 3월부터 10월까지 37개소에서 식생조사를 실시하였고, 식물사회학적 식생유형 분류를 통해 종조성을 파악하고, 종의 우점도를 파악하기 위해 중요치를 이용하여 식생유형별 층위구조를 분석하였다. 그 결과 식생유형분류체계는 8개 종군유형과 5개의 식생단위로 구분되었다. 산림청 지정 특산식물은 9분류군, 희귀식물은 17분류군이 출현하였고, 북방계식물의 비율은 41.2%이며, 식생단위별 해발고도가 증가함에 따라 희귀-특산식물도 함께 증가하는 것으로 나타났다. 중요치 분석 결과, 구상나무는 모든 식생단위에서 평균상대우점치가 높게 나타났다. 또한 층위별로 보았을 때 식생단위 1을 제외한 단위들에서는 신갈나무, 당단풍나무 등의 수종과 경쟁관계에 놓여 있는 것으로 판단되었다. 본 연구의 결과는 기후변화로 인한 아고산대 산림식생의 변화를 이해하기 위한 기초 자료 뿐만 아니라 식생학적 접근을 통한 장기 모니터링의 기초지표로 활용될 것으로 판단되었다.