• 제목/요약/키워드: INVADED SPECIES

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외국산 따개비류의 한국내 침입 (Invasion of Foreign Barnacles into Korea Waters)

  • 김일희
    • Animal Systematics, Evolution and Diversity
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    • 제8권2호
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    • pp.163-176
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    • 1992
  • 3종의 외국산 따개비가 한국의 조간대 해역에 침입한 것이 발견되었는데 이들은 Balanus amphitrite, B. eburneus 및 B. improvisus이다. 한국내에서 이 3종이 모두 발견되고 개체군이 가장 발달된 곳은 동남부 해역, 즉 부산 부근이다. B. amphitrite는 1970년도 초에 가장 먼저 한국에 침입한 것으로 추측되며 가장 널리 분포해 있으나 목포 이북의 서해에는 아직 침입해 있지 않은 상태이다. B. improvisus는 동해의 복쪽까지 확산해 있으나 B. eburneus는 동남부 해역에 국한되어 있다. B. amphitrite는 재래종인 B. albicostatus와 경쟁을 하고 있는데 이 두 종이 혼생하고 있는 여러 지역에서 후자의 재래종이 배타되고 있는 실정이다. 서해는 아직 외래 따개비의 침입을 받고 있지 않은데 그 이유는 현재 모르고 있다.

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임도사면의 생태적 녹화를 위한 자생식물 선정 및 관속식물상 - 경상남도와 전라남도 임도를 중심으로 - (Native Plants Selection for Ecological Replantation and Vascular Plants in Forest Road Slope - In Case Study on Forest Road of Gyeongsangnam-do and Jeollanam-do -)

  • 이미정;이준우;전권석;지윤의;김명준;김종윤;송호경
    • 한국환경생태학회지
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    • 제17권3호
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    • pp.201-209
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    • 2003
  • 본 연구는 전라남도와 경상남도의 4개 시$.$군에서 개설 후 1∼15년 경과한 임도에서 경과년수별로 절토 사면에 조사구를 설치하고. 식생조사와 환경인자를 조사하였다. 경과년수에 따라 침입하는 종 수와 피복도는 점차 증가하였으며, 초본류의 출현비율은 감소하였고, 목본류의 출현비율은 증가하였다. Ordination 분석을 실시한 결과 종의 분포에 영향을 미치는 요인은 시공 후 경과년수, 절토경사, 해발고, 절토사면 방향 등으로 나타났다. 임도사면의 녹화를 위해서는 시공 초기에 파종하던 종 이외에 쑥. 뱀딸기, 참억새, 칡, 산초나무, 붉나무, 병꽃나무 등이 적합할 것으로 판단된다. 임도사면에 출현한 관속식물은 77과 190속 233종 38변종으로 총 271종이며. 그 중 귀화식물은 18종이 출현하였다. 출현종의 빈도 우선순위를 보면. 산딸기, 쑥, 산초나무, 칡, 소나무. 조록싸리, 큰까치 수영, 싸리. 이고들빼기. 참억새, 개망초 등의 순이다.

녹화공법에 따른 고속도로 암반비탈면의 식생 특성 분석 (An analysis on vegetation characteristics of the rocky slopes in expressway according to the type of greening works)

  • 이수호;전기성;이제만;김경훈;김동엽;임상준;박영대
    • 한국환경복원기술학회지
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    • 제26권1호
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    • pp.1-16
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    • 2023
  • The current study aims to analyze the vegetation characteristics of the rocky slopes in expressway applied by different types of greening work. A field survey on the current status of vegetation were conducted in 50 rock slopes along 13 expressways in two years, 2020 to 2021. Specifically, the type of implemented greening and slope stabilization work, the soil properties, the vegetation coverage, and the emerged species were investigated on a every single slope. As the result of the implemented work types, the soil-media hydroseeding and the gabion work appeared to be the most implemented greening and slope stabilization work, respectively. As a result of the vegetation survey, 126 classification groups (42 families, 93 genera and 126 species) were identified in total and it was observed 26 IAP species and 5 invasive species were growing. The longer the time after greening work, the more frequent appearance of IAP species were observed. Woody species such as Robinia pseudoacacia and Lespedeza bicolo, and perennial herbs such as Artemisia princeps, Erigeron annuus, and Festuca arundinacea were appeared with high frequencies at the rocky slopes in expressway. It was also observed Pinus densiflora, Quercus dentata, Rubus crataegifolius and Miscanthus sinensis which had invaded from the adjacent forests naturally, and the largest number of species were invaded between 5~10 years usually after greening work in this study.

임도사면의 생태적 녹화를 위한 자생식물 선정 - 강원도지역 임도를 중심으로 - (Native Plants Selection for Ecological Replantation in Forest Road Slope - In case study on forest road of Gangwon-do -)

  • 이미정;이준우;전권석;김효정;최윤호;정도현;송호경
    • 한국환경복원기술학회지
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    • 제6권4호
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    • pp.24-32
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    • 2003
  • This study was carried out to select proper species for early stage replantation of forest road cut-slope. From one to fourteen year elapsed forest roads in Gangwon-do, sample plots were selected, and their vegetations and environmental factors were investigated. Invaded species with high frequency ordered Lespedeza cyrtobotrya, Lysimachia clethroides, Rubus crataegifolius, Patrinia villosa, Spodiopogon sibiricus, Pueraria thunbergiana, Youngia denticulata, Dactylis glomerata, Rhus chinensis, and Pinus densiflora. North cut-slope have the highest value of invaded species number and plant coverage, and so, north aspect could be best for plant invasion. According to ordination, distribution of species were influenced by elapsed year, cut-slope aspect, and cut-slope. Lespedeza bicolor, Lespedeza cyrtobotrya, Artemisia stolonifera, Miscanthus sinensis, Rubus crataegifolius, Rhus chinensis, Lindera obtusiloba, and Pinus densiflora were considered with proper species for replantation at south slope. Also, Lespedeza bicolor, Lespedeza cyrtobotrya, Arundinella hirta, Artemisia keiskeana, Astilbe chinensis var. davidii, Rubus crataegifolius, Weigela subsessilis, Stephanandra incisa, and Rhododendron mucronulatum were considered with proper species as replantation at north slope.

외래침입해충인 갈색날개매미충(노린재목: 꽃매미상과: 큰날개매미충과)의 재동정 결과 보고 (On the Scientific Name of the Invaded Planthopper (Hemiptera: Fulgoroidea: Ricaniidae) in Korea)

  • 박재국;정성훈
    • 한국응용곤충학회지
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    • 제59권4호
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    • pp.317-323
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    • 2020
  • 갈색날개매미충(노린재목: 꽃매미상과)은 한반도 침입해충 중 하나이다. 하지만, 그동안 정확한 종 동정이 되지않아, 분류학적으로 또는 농업적으로 혼선을 야기시키는 문제가 발생하였다. 이번 연구에서는 한반도에서 발생된 표본들의 관찰을 통하여 이 종의 학명을 Ricania sublimata로 확인하였다. 또한 한국산 큰날개매미충속에 대한 검색표를 제공한다.

관리조방적 옥상녹화지의 식재식물에 따른 이입식물 출현 양상 (An Occurrence Aspect of Invasive Plants According to Planted Plants in Extensive Rooftop Greening)

  • 한이채;이은희
    • 한국환경복원기술학회지
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    • 제14권3호
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    • pp.71-84
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    • 2011
  • The purpose of this study is to suggest sustainable management of rooftop greening areas. This research is conducted to analyze birth-and-breeding state of planted plants set in extensive rooftop greening, and to examine occurrence aspect of invasive plants and its changes, some features of invasive plants on which can make a basic material for management program of planted plants as a whole. The experimental site is on the rooftop green area of Seoul Women's University which was constructed in 2007. The using method was monitoring rooftop greening areas and analyzing occurrence aspect of invasive plants and its changes by planted plants. Invasive plants were investigated six times overall in April, June, September, November of 2008, and April & June of 2009. As a result, 26 families and 66 species were found invaded. Of which 14 species of Gramineae were invaded the most remarkably. Through these study, it could be inferred some features of invasive plants and major region for it. After the analysis get done about feature of invasive plants, it shows that some invasive plants of all 66 species in total came out, otherwise occurred in a certain time of season. Within the researches eriod showed a higher incidence was found in Artemisia princeps, Conyza canadensis, Coreopsis anceolata, Equisetum arvense, Erigeron annuus, Oxalis corniculata, invasive plant have a lower incidence of plants were identified as Aster koraiensis, Dendranthema zawadsbum. So, when the plan to set a management device regarding occurrence aspect of invasive plants in accordance with planted plants on extensive rooftop greening, it was found that a sustainable & rational management device is desperately needed there for invasive & planted plants of the target area.

난대 기후대의 상록활엽수림 복원모형(II) -희귀 및 멸종위기식물과 귀화식물 - (Restoration Model of Evergreen Broad-leaved Forests in Warm Temperate Region(II) - Rare, Endangered and Naturalized Plants -)

  • 김용식;오구균
    • 한국환경생태학회지
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    • 제10권1호
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    • pp.128-139
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    • 1996
  • 우리나라에서 비교적 잘 보존되어 있는 난대상록활엽수림의 12개 지역을 대상으로 이 지역에 주로 출현하는 상록수종과 생육하고 있는 희귀 및 멸종위기 식물과 귀화식물을 조사하였다. 난대상록활엽수림에 70% 이상 공통적으로 고르게 출현하는 수종으로는 녹나무과의 생달나무, 후박나무 등 28과 34속 37종류로 파아고디었으묘, 이들 수종은 상록활엽수림의 복원모형을 만드는데 중요한 지표가 되리라 판단된다. 면적 100m$^{2}$당 종수는 보길도가 5.511로 가장 높았으묘, 미조리(4.677), 맹선리(2.481) 등의 순이었다. 관찰된 희귀 및 멸종위기식물은 물푸레나무과의 이팝나무를 포함한 4종 등 총 24과 32종이었으며 보길도에서 13과12종 1변종 등 13종류로 가장 많은 희귀 및 멸종위기식물이 파악되었다. 귀화 및 도입식물의 경우 국화과는 7종, 콩과는 5종, 자리공과는 2종을 파악되었다. 이 외에 비름과, 자작나무과, 능소화과, 명아주과, 닭의장풀과, 측백나무과, 꿀풀과, 아욱과, 분꽃과, 소나무과, 마디풀과 및 낙우송과 등 12과는 각 1종씩 총 12종이 확인되었다. 보길도의 경우 낙우송과의 삼나무 등 총 9과 13속 13종으로 가장 많은 도입 또는 귀화식물이 식재되어 있음을 확인하였다. 또한 격리된 소규모 도서 생태계의 합리적인 보전을 위한 관리계획 수립의 필요성을 논하였다.

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Prosopis juliflora invasion and environmental factors on density of soil seed bank in Afar Region, Northeast Ethiopia

  • Shiferaw, Wakshum;Bekele, Tamrat;Demissew, Sebsebe;Aynekulu, Ermias
    • Journal of Ecology and Environment
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    • 제43권4호
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    • pp.400-420
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    • 2019
  • The aims of the study were to analyze (1) the effects of Prosopis juliflora (Prosopis) on the spatial distribution and soil seed banks (SSB) diversity and density, (2) the effects of environmental factors on SSB diversity and density (number of seeds in the soil per unit area), and (3) the effects of animal fecal droppings on SSB diversity, density, and dispersal. Aboveground vegetation data were collected from different Prosopis-infested habitats from quadrats (20 × 20 m) in Prosopis thickets, Prosopis + native species stand, non-invaded woodlands, and open grazing lands. In each Prosopis-infested habitats, soil samples were collected from the litter layer and three successive soil layer, i.e., 0-3 cm, 3-6 cm, and 6-9 cm. Seeds from soil samples and animal fecal matter were separated in the green house using the seedling emergence technique. Invasion of Prosopis had significant effects on the soil seed bank diversity. Results revealed that the mean value of the Shannon diversity of non-invaded woodlands was being higher by 19.2%, 18.5%, and 11.0% than Prosopis thickets; Prosopis + native species stand and open grazing lands, respectively. The seed diversity and richness, recovered from 6-9-cm-deep layer were the highest. On the other hand, the density of Prosopis seeds was the highest in the litter layer. About 156 of seeds/kg (92.9%) of seeds were germinated from cattle fecal matter. However, in a small proportion of seedlings, 12 of seeds/kg (7.1%) were germinated from shot fecal matter. Thus, as the seeds in the soil were low in the study areas, in situ and ex situ conservation of original plants and reseeding of persistent grass species such as Cynodon dactylon, Cenchrus ciliaris, Chrysopogon plumulosus, and Brachiaria ramosa are recommended.

Predicting the Invasion Pathway of Balanus perforatus in Korean Seawaters

  • Choi, Keun-Hyung;Choi, Hyun-Woo;Kim, Il-Hoi;Hong, Jae-Sang
    • Ocean and Polar Research
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    • 제35권1호
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    • pp.63-68
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    • 2013
  • The European Common Barnacle Balanus perforatus Brugiere (Crustacea, Cirripedia) has been introduced into the east coast of Korea, presumably via the ballast water of ships. The species has since been spreading along both the northern and southern coast to the east, most likely due to alongshore currents. We predicted the potential range expansion of Balanus perforatus in Korean waters using Genetic Algorithm for Rule-set Prediction (GARP), an environmental niche modeling technique. The results show that much of the southern coastal waters of Korea could be colonized by the spread of the nonindigenous species, but that the west coast is unlikely to be invaded. More sampling on the west coast would enhance the predictability of the model. To our knowledge, this is the first report of its kind for predicting marine nonindigenous species in Korean waters using GARP modeling.

Epibionts associated with floating Sargassum horneri in the Korea Strait

  • Kim, Hye Mi;Jo, Jihoon;Park, Chungoo;Choi, Byoung-Ju;Lee, Hyun-Gwan;Kim, Kwang Young
    • ALGAE
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    • 제34권4호
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    • pp.303-313
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    • 2019
  • Floating seaweed rafts are a surface-pelagic habitat that serve as substrates for benthic flora and fauna. Since 2008, Sargassum horneri clumps have periodically invaded the Korea Strait. In this study, the polymerase chain reaction-free small-organelles enriched metagenomics method was adopted to identify the species of epibiotic eukaryotes present in floating S. horneri fronds. A total of 185 species were identified, of which about 63% were previously undetected or unreported in Korean waters. The rafts harbored a diverse assemblage of eukaryotic species, including 39 Alveolata, 4 Archaeplastida, 95 Opisthokonts, 4 Rhizaria, and 43 Stramenopiles. Of these 185 taxa, 48 species were found at both Sargassum rafts collection stations and included 24 Stramenopiles, 17 Alveolata, and 7 Opisthokonts. Among these, the highest proportion (50%) of species was photo-autotrophic in basic trophic modes, while the proportion of phagotrophic, osmo- or saprotrophic, and parasitic modes were 43.8%, 4.2%, and 2.1%, respectively. This study demonstrates the contribution of floating Sargassum rafts as dispersal vectors that facilitate the spread of alien species.