• 환경생물
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• 제30권2호
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• pp.151-155
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• 2012

Korean freshwater turtles are divided into native turtles, Chinemys reevesii in Geoemydidae, Pelodiscus sinensis in Trionychidae, and imported turtles, Trachemys scripta elegans, T. s. scripta, Pseudemys rubriventris and Ocadia sinensis. In this study, we determined the distribution of Korean freshwater turtles based on a field study and literature study, and considered the taxonomic position of unidentified native turtles. The study was carried out between May 2010 and November 2011 during the day time, and the capturing tool used to collect turtles consisted of net and metal frame. C. reevesii and P. sinensis were found in 16 and 11 places, respectively. C. reevesii, which inhabits the Korean peninsula, is a taxonomically controversial species, but it is presumed that the turtle belongs to Mauremys. Moreover recent taxonomic studies of the soft-shell turtle have shown that the Korean native species is P. maackii, and P. sinensis was imported from abroad and has been in the natural habitats of Korea since 1970s. The exterior shape and skeletal form of P. maackii and P. sinensis are nearly similar. However, the skin color and yellow spots on the shell could be used to distinguish the two species.

• 한국식품저장유통학회지
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• 제17권2호
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• pp.307-310
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• 2010

화분의 수와 종류에 있어서 차이를 나타내며 K/Na 비율이 3.9-27.9 배로 토종꿀에서 증가한 반면, Fe, Zn, Al은 토종꿀에서 검출되지 않았다. 토종꿀과 양봉꿀은 각각의 구성성분에 있어서 미시적인 차이가 인정되었다. 토종꿀 특이적인 단백질의 전기영동적인 판별과 동시에 본 연구에서 확인한 화분의 종류, K/Na ratio, 및 Fe, Zn, Al의 검출여부 등으로 판별을 확증할 수 있으리라 기대되며 이와 같은 예비적인 특성 비교는 지역의 토종꿀의 고품질화를 위하여 필요하다고 판단된다.

• 한국자원식물학회지
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• 제20권6호
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• pp.563-569
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• 2007

RAPD analysis showed that all the OTUs of 'Sandolbae' were the same species because amplified band patterns of all samples generated by each of 5 random primers were identical. Even though there were different environmental conditions, all the "Chuiangne" trees from three different places were the same species, and also all the "Cheongshilli" trees were the same species too. No genetic variations were detected between native Korean pears grown in the habitats and in the research field. Because 212 polymorphic bands were generated by 9 primers selected through primer screening, they were possible to analyze genetic relationship among naturally growing three native Korean pears and nine cultivars of Pyrus pyrifolia and P. communis. Based on the RAPD analysis, three main groups were formed. The first group represented the Six P. pyrifoia cultivars, the second group was the three native Korean pears, and the last group was the three P. communis cultivars. Genetic distance between 'Wonwhang' and 'Chojuro' was closer than other cultivars in group 1 since dissimilarity index value between these two cultivars was 50.82. However, genetic distance between 'Niitaka' and 'Chojuro' was the most distant compared to the others in group 1. In group 2, 'Sandlobae' was genetically closer to 'Chuiangne' than 'Cheongshilli' because dissimilarity index value between 'Sandlobae' and 'Chuiangne' was smaller, 50.82, than the value between 'Sandlobae' and 'Cheongshilli', 63.636. In group 3, 'Old Home' was genetically closer to 'Bartlett' than 'Kaiser Alexander(or Bosc)'. Group 3 composed of P. communis cultivars was genetically further than other two groups, P. pyrifolia cultivars and native Korean pears.

• 생약학회지
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• 제40권4호
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• pp.289-297
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• 2009

This study was carried out to investigate the ecological characteristic of native Lithospermum erythrorhizon population in Korea. The survey quadrates were located in the middle of native L. erythrorhizon habitats. As the result of the research, the ecological patterns of native habitats were found to be divided into inclined plane type, ridge type, mountain-roadside type, and rock bed type. The research revealed 90 taxa in total, in which 37 families, 63 genera, 23 varieties, 6 forma, 1 sub-species and 60 species were checked in the flora of native L. erythrorhizon habitats.

• 생약학회지
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• 제38권1호
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• pp.1-9
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• 2007

This study was conducted to investigate the native Phytolacca insularis in Ulleung Island for their distribution and ecological characteristics. P. insularis, called as "Sum-Ja-Ri-Gong", is very rare plant which is only restricted in Ulleung Island. It is a plant out of 217 endangered plant species designated by the Korea Forest Service (1996). The native sites were discovered several plants in the small communities at the area from 32m to 116m above the sea level in the seashore of Ulleung Island. The average vegetation height of herb layer in the native sites was 0.77m and average coverage percentage of vegetation layer was 75.56%. Average 11.89 species were emerged on a plot. P. insularis has a tendency to emerged with Galium spurium var. echinospermon and Artemisia lavandulaefolia community.

• 한국자원식물학회지
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• 제24권5호
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• pp.650-658
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• 2011

강화도, 울릉도 및 제주도 일원에서 2008년 11월 28일부터 동년 12월 31일까지 5회에 걸쳐 수집단이 작물 토종 유전자원을 탐색 수집한 결과 총 60작물 460점을 수집하였다. 강화도에서는 43작물 295점을 수집하였으며, 울릉도에서는 24작물 49점을 수집 하였고, 제주도에서는 42작물 116점을 수집하였다. 전체 수집한 작물 토종중 식량자원은 14작물 252점(54.8%)이었고, 원예작물이 117점(25.4%)이었으며, 특용작물은 91점(19.8%) 이였다. 식량작물 토종수집 결과는 3개도 공히 콩, 강낭콩 등이 가장 많았고 그 다음으로 옥수수, 수수가 많았다. 강화도에서 수집한 분홍감자와 울릉도의 울릉감자는 소멸직전의 귀한 작물 토종이었다. 원예작물 토종 수집결과 호박, 시금치, 갓, 오이, 상추 순으로 많았다. 강화의 긴호박, 토종오이, 시금치와 울릉도의 오이, 호박 및 제주도의 무, 얼갈이 배추, 고추 등은 오래 재배하여 온 가치 높은 토종자원들 이었다. 특용작물 토종 수집결과 참깨, 들깨, 박, 피마자 등이 많이 수집되었으며 제주도와 강화도에서 수집한 댑싸리는 오래전부터 내려오는 유용한 자원들이다. 수집된 작물 토종의 농가재배 년 수는 대체로 31-50년(작목별로 48.4~53.6%)이 가장 많았다. 대를 물려서 재배 하여 온 토종작물도 13.1~18.7%였다. 농가에서 작물토종을 보유하고 있으면서 분양해준 농부들은 여자가 82.9%로 남자 17.1%에 비하여 훨씬 많았으며, 씨앗은 61~80세(74.3%)의 여성들의 손에 의하여 보존되어 왔음을 보여주었다.

• 한국환경복원기술학회지
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• 제19권1호
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• pp.155-170
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• 2016

This study established the definition of invasive disturbance species for a sustainable management and biodiversity, and derived the influence factors caused by the species. To define the species, the paper reviewed similar words such as alien species and invasive species, using standard definitions. Also reviewed the results of recent research on the factors of the species. The paper defined the invasive disturbance species as an species whose establishment and spread threaten ecosystems, habitats or species with economic or environmental harm including native and non-native. Through the reviews, The factors were classified as geographic (altitude, slope, and soil, etc.), climate (temperature, precipitation, climate change, etc.) and, anthropogenic (land use, population, road, and human activity, etc.), and species & vegetation structure (species property, local-species richness, and canopy, etc.). Especially, human activity such as urbanization and highways may be associated with both higher disturbance and higher propagule pressure. In the further study, it is required development of mitigation strategies and vegetation structure model against invasive disturbance species in urban forest based on this study.

• 한국환경생태학회지
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• 제17권2호
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• pp.169-176
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• 2003

RAPD를 이용하여 국내에 생육하는 4종의 자생 민들레와 2종의 귀화 민들레 종간의 유전적인 유연관계를 분석하였다 Primer Screening을 통해 선발된 30개의 Primer를 이용하여 RAPD를 행한 결과, Polymorphic band 수는 141개로 나타나 민들레 종간의 유전적인 차이 분석이 가능하였다. Primer OPC12, OPD16, OPK16, OPK17, OPK20, OPSI에서는 각 종마다. 특정 밴드가 있는 것으로 조사되었다. 특히 OPS8에서는 564bp에서 귀화종인 서양민들레 종에서만 특이 밴드가 나타났다. RAPD분석결과 자생종과 귀화종 민들레들은 명확히 2군으로 구분되었다. 1군에는 서양민들레. 붉은씨서양민들레 등의 귀화종 그룹이었으며, II군은 민들레, 산민들레, 좀민들레, 횐민들레 등의 자생종 민들레 그룹으로 나뉘어졌다. Bootstrap 방법으로 6종의 유연관계를 분석한 결과도 비유사계수를 통한 방법으로 분석한 결과와 매우 유사하였다 우리 나라에서 자생하는 민들레속 6종의 주요형질을 조사한 결과 I군에 속하는 민들레류는 II군에 속한 종들에 비해 개화일수가 길고, 외총포편의 방향이 다르며 털의 유무 또한 다른 특징이 있었다. ll군에 속하는 횐민들레는 다른 민들레종과는 화색에서 확연한 차이를 보였으며 자생종들 속에서도 잎의 방향과 발아의 생리적 특성 등 유전적으로 여러 다른 점이 복합적으로 작용함으로서 II군내에서도 유전적 거리가 가장 먼 것으로 나타났다.

• 농업과학연구
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• 제46권2호
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• pp.351-359
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• 2019

The purpose of this study was to compare the growth performance, nutrient digestibility, fecal microflora, blood profiles and meat quality of broilers, Korean native chickens and white semi broilers under identical feeding conditions. Sixty 1-d chicks of each type were randomly placed into 12 pens per cage (5 chicks per cage) and fed commercial diets for 28, 49, and 28 days, respectively. The broilers showed a significantly higher (p < 0.05) growth performance from 0 to 4 weeks compared with the other types. Korean native chickens had a significantly higher (p < 0.05) digestibility of dry matter and nitrogen than that of the other species. The blood glucose was significantly higher in the Korean native chickens compared to the other species, and the blood cholesterol was significantly lower. The Lactobacillus content in Korean native chickens was significantly higher (p < 0.05) compared to the other species, and the E. coli content in the broilers was significantly higher (p < 0.05) than in the Korean native chickens and white semi broilers. In terms of meat quality, the breast meat of the broilers had a high water content and pH level. The breast meat of the white semi broilers had a significantly lower (p < 0.05) shear force than that of the other species. In conclusion, there was an interspecific physiological difference due to the age and body weight of the chickens. The broilers had a higher growth performance and meat quality compared to the Korean native chickens and white semi broilers.

• Journal of Ecology and Environment
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• 제45권2호
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• pp.88-96
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• 2021

Background: Sika deer, Cervus nippon, were originally introduced to South Korea from Japan and Taiwan for commercial farming purposes. Unfortunately, they were released into the wild during religious events and have since begun to impact the native ecosystem and species endemic to South Korea. The study of activity patterns can improve our understanding of the environmental impact of non-native species and their association with sympatric species. Using camera traps, we studied the diel and seasonal activity patterns of non-native sika deer and quantified the temporal overlap with sympatric mammalian species in the Muljangori-oreum wetlands of Hallasan National Park, South Korea. Results: A total of 970 trap events were recorded for five mammalian species from nine locations during the camera-trap survey. Siberian roe deer (Capreolus pygargus tianschanicus) had the highest number of recorded events (72.0%), followed by sika deer (Cervus nippon) (16.2%), wild boar (Sus scrofa) (5.0%), Asian badger (Meles leucurus) (4.5%), and the Jeju weasel (Mustela sibirica quelpartis) (2.0%). Sika deer had bimodal activity patterns throughout the year, with peaks throughout the spring-autumn twilight, and day and night time throughout the winter. Relating the daily activity of sika deer with other mammalian species, roe deer expressed the highest degree of overlap (Δ₄ = 0.80) while the Asian badger demonstrated the lowest overlap (Δ₄ = 0.37). Conclusions: Our data show that sika deer are a crepuscular species with seasonal variations in daily activity patterns. Additionally, we identified the temporal differences in activity peaks between different mammals in the Muljangori-oreum wetlands and found higher degree of overlap between sika deer and roe deer during twilight hours.