• 한국균학회지
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• 제47권3호
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• pp.241-247
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• 2019

2017년 독도의 버섯상 조사를 통해 관속식물인 왕호장근의 기부에 발생한 목재부후균 버섯표본을 수집하였다. 수집된 목재부후균은 배착성으로 자라는 가죽질의 자실체를 형성하였고 자실층은 관공형태를 나타내었다. 또한 균사체계는 위이균사형이며 타원형의 담자포자를 형성하였다. 형태적 특징과 균류바코드 영역 (internal transcribed spacer of rDNA) 분석을 통하여 이 버섯을 Xylodon flaviporus (Berk. & M.A. Curtis ex Cooke) Riebesehl & Langer로 동정하였다. 이 버섯은 독도에서 서식이 확인된 두 번째 종이며, 다년생 초본식물인 왕호장근을 X. flaviporus의 새로운 기주식물로 보고하고자한다.

• 한국자원식물학회지
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• 제28권4호
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• pp.400-410
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• 2015

Juniperus chinensis (Cupressaceae) is a valuable woody plant resource, but this rare plant is only distributed in restricted regions in Korea. In this study, we surveyed the geographic distribution regions, variation of sex ratio and the dynamics of natural populations of J. chinensis. in order to establish conservation strategies for the sustainable conservation of this important resource tree. The 17 natural populations of J. chinensis are restrictively distributed in the shore cliffs of (1) Ulleungdo island, (2) Gyeongju-si to Gangneung-si of the eastern coast, the riverside cliff along (3) Donggang-river of Jungsun-gun and Pyeongchang-gun and (4) branch of Nakdonggang-river in Uiseong-gun. The populations in Ulleungdo island showed continuous population distribution of over 200 individuals, but populations in other regions had discontinuous population distribution of under 200. The population of J. chinensis surveyed in Korea was estimated in ca. 3,200 individuals. The sex ratio (male/female) among populations of J. chinensis was diverse with variation from 0.46~1.67 range, but showed no significance. The sex ratio of the total individuals by species level was 0.74, and the percentage of female tree was significantly higher than the male. The results of dynamics analysis within population among regions showed that seedlings and saplings of J. chinensis in three regions surveyed were continuously regenerating. The distribution of DBH class showed a stable population structure of inverse J shape graph, but fragmentation and decrease in populations because of invading broad-leaved shrubs and trees from the surroundings were concerned. Further studies, and in situ and ex situ conservation strategies for the sustainable conservation on natural populations of this rare resources woody plant, J. chinensis in Korea are recommended.

• 식물분류학회지
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• 제39권4호
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• pp.309-314
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• 2009

전남 구례군, 광주광역시 그리고 인천광역시에서 미기록 귀화식물 2종을 발견하였다. 유럽육절보리풀로 이름 붙인 Glyceria declinata $Br{\acute{e}}b$.(벼과)는 전남 구례군 구례읍 섬진강 부근과 광주광역시 동구 사동 광주천 부근에서 확인되었으며, 근연 분류군인 육절보리풀(G. acutiflora)과 비교하여 소수의 길이는 15-20mm로 짧고, 호영의 끝부분이 뭉툭한 특징으로 구별된다. 또한 처진미꾸리광이로 이름 붙인 Puccinellia distans (Jacq.) Parl. (벼과) 는 인천광역시 영종도, 용유도, 강화군 초지진 등에서 확인되었으며, 근연 분류군인 갯꾸러미풀(P. nipponica)에 비해 호영은 길이 1.8-2.5mm이고, 엽설은 길이 1-2mm로 더 작고, 개화기 후 화서의 밑 부분 가지가 밑으로 젖혀지는 특징으로 구별된다.

• 식물분류학회지
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• 제34권4호
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• pp.287-295
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• 2004

한반도의 서남 도서지역인 대흑산도에 서식하는 당근속(Daucus)식물의 외부형태학적 형질을 중심으로 하여 분류학적 재검토를 수행하였다. 또한, 대흑산도의 해안 지역에 서식하고 있는 당근류를 갯당근(Daucus littoralis Sibth. et Sm. var. koreana Nakai)으로 여러 도감에 기재되어 있어, 이들에 대한 식물명 및 분류학적 실체에 대하여 조사하였다. 갯당근으로 동정되어 있는 석엽표본과 현지 조사 결과, 해안에 서식하는 당근류는 잎 및 열매의 형태에서 차이를 보여 D. littoralis가 아닌 D. carota L. subsp. carota로 밝혀졌으며 상기 아종의 국명을 당근(D. carota subsp. sativa)와 구별하기 위해 산당근으로 신청하였고, 줄기가 곧으며 갈라지지 않는 미기록 분류군인 D. carota subsp. maritimus의 국명을 선당근으로 신청하였다.

• 한국환경복원기술학회지
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• 제25권3호
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• pp.29-45
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• 2022

For biodiversity conservation, the importance of beta-diversity which is changes in the composition of species according to environmental changes has become emphasized. However, given the systematic investigation of species distribution and the accumulation of large amounts of data in the Republic of Korea(ROK), research on the spatialization of beta-diversity using them is insufficient. Accordingly, this research investigated the applicability of the Generalized Dissimilarity Modeling(GDM) to ROK, which can predict and map the similarity of compositional turnover (beta-diversity) based on environmental variables. A brief overview of the statistical description on using GDM was presented, and a model was fitted using the flora distribution data(410,621points) from the National Ecosystem Survey and various environmental spatial data including climate, soil, topography, and land cover. Procedures and appropriated spatial units required to improve the explanatory power of the model were presented. As a result, it was found that geographical distance, temperature annual range, summer temperature, winter precipitation, and soil factors affect the dissimilarity of the vegetation community composition. In addition, as a result of predicting the similarity of vegetation composition across the nation, and classifying them into 20 and 100 zones, the similarity was high mainly in the central inland area, and tends to decrease toward the mountainous areas, southern coastal regions, and island including Jeju island, which means the composition of the vegetation community is unique and beta diversity is high. In addition, it was identified that the number of common species between zones decreased as the geographic distance between zones increased. It classified the spatial distribution of plant community composition in a quantitative and objective way, but additional research and verification are needed for practical application. It is expected that research on community-level biodiversity modeling in the ROK will be conducted more actively based on this study.

• 한국어류학회지
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• 제22권1호
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• pp.61-64
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• 2010

우리나라 제주도 남부 연안역에서 채집된 317개체 (체장 32.3~71.5mm)를 근거로 청베도라치과 한국미기록종인 Omobranchus loxozonus를 기재 보고한다. 본 종의 특징은 등지느러미 기조수가 XII~XIV, 19~22, 뒷지느러미 기조수 II, 22~24, 독특한 체색패턴을 갖는 점이며, 신한국명으로 '구름베도라치'를 제안한다

• 환경생물
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• 제26권3호
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• pp.226-232
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• 2008

Sampling of the ground beetles in four 'gotjawal' terrains of Jeju island was conducted from April to October, 2007, using pit-fall trap. Totally 2,887 individuals of 23 species belonged to 4 families were collected. The species diversity index was the highest at Aeweol gotjawal (AW), while it was the lowest in Hangyeong-Andeog gotjawal (HA). Clustering analysis revealed that the insect communities of four gotzawals were grouped in only one cluster. Jocheon-Hamdeog gotjawal (JH) formed a cluster with Gujwa-Sungsan gotjawal (GS) at the lowest chord distance (0.24). At the higher chord distance of 0.50, AW fused the cluster of JH and GS. HA fused with the rest three terrains, forming a single cluster at the highest chord distance of 0.98.

• Journal of Species Research
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• 제2권1호
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• pp.55-68
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• 2013

Previous surveys on Ulleung-do (Dagelet Isl.) found just ten earthworm taxa while the current survey unearthed a dozen species. Placement of parthenogenetic 'tube' Amynthas dageletensis Hong & Kim, 2005 is resolved as it clearly belongs in synonymy of Metaphire soulensis (Kobayashi, 1938) which becomes a new Ulleung-do record. Other new megascolecids are recorded since Amynthas heteropodus (Goto & Hatai, 1898) and A. baemsagolensis Hong & James, 2001 are confirmed as synonyms of A. corticis (Kinberg, 1867) and A. carnosus (Goto & Hatai, 1899), respectively. The latter taxon is differentiated and its synonym A. pingi (Stephenson, 1925) provisionally revived. New lumbricids are Bimastos parvus (Eisen, 1874), Eisenia japonica (Michaelsen, 1892) and questionably Dendrodrilus rubidus (Savigny, 1826). All confirmed species are common exotics with no endemics. Drawida moniligastrids were not yet located on this remote island for reasons unknown.

• Animal Systematics, Evolution and Diversity
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• 제22권1호
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• pp.105-108
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• 2006

Some sea urchins were collected from the subtidal rocky bottom along the coastal line in Jeju Island by SCUBA diving in April 2005 and identified on the basis of their morphological characteristics. Among them, Asthenosoma ijimai Yochiwara, 1897 was newly recorded from Korea and redescribed based on the specimen collected at 20m deep in southern breakwater of Seogwipo harbor. The order Echinothurioida including family Echinothuriidae and genus Asthenosoma was firstly recorded in Korea. Seventeen species of echinoids are reported to be distributed in Jeju Island of Korea.

• 식물분류학회지
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• 제46권2호
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• pp.129-148
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• 2016

Plant species on oceanic islands comprise nearly 25% of described vascular plants on only 5% of the Earth's land surface yet are among the most rare and endangered plants. Conservation of plant biodiversity on islands poses particular challenges because many species occur in a few and/or small populations, and their habitats on islands are often disturbed by the activity of humans or by natural processes such as landslides and volcanoes. In addition to described species, evidence is accumulating that there are likely significant numbers of "cryptic" species in oceanic archipelagos. Plant systematists, in collaboration with others in the botanical disciplines, are critical to the discovery of the subtle diversity in oceanic island floras. Molecular data will play an ever increasing role in revealing variation in island lineages. However, the input from plant systematists and other organismal biologists will continue to be important in calling attention to morphological and ecological variation in natural populations and in the discovery of "new" populations that can inform sampling for molecular analyses. Conversely, organismal biologists can provide basic information necessary for understanding the biology of the molecular variants, including diagnostic morphological characters, reproductive biology, habitat, etc. Such basic information is important when describing new species and arguing for their protection. Hybridization presents one of the most challenging problems in the conservation of insular plant diversity, with the process having the potential to decrease diversity in several ways including the merging of species into hybrid swarms or conversely hybridization may generate stable novel recombinants that merit recognition as new species. These processes are often operative in recent radiations in which intrinsic barriers to gene flow have not evolved. The knowledge and continued monitoring of plant populations in the dynamic landscapes on oceanic islands are critical to the preservation of their plant diversity.