• 제목/요약/키워드: Species diversity indices

검색결과 377건 처리시간 0.024초

Habitat Distribution and Diversity of Ground Beetles (Coleoptera: Carabidae) on Geumo Mountain

  • Seon, Seong Hwan;Ha, Man-Leung;Kim, Byeong-Heul;Kim, Hyun;Lee, Chong-Kyu
    • Journal of Forest and Environmental Science
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    • 제38권3호
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    • pp.207-217
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    • 2022
  • We investigated the habitat distribution and diversity of ground beetles (Coleoptera: Carabidae), a bioindicator for assessing environmental changes on Geumo Mountain, in survey plots at different altitudes on the southern and northern slopes of Geumo Mountain in South Korea. From April to September 2021, we collected 1,384 individuals, 41 species, and 15 families of Carabidae from the survey sites. The dominant species collected was Synuchus cycloderus (347 individuals), followed by Carabus jankowskii (193 individuals). The monthly distributions of species richness and abundance were as follows: 24 beetles of 9 species in April, 115 beetles of 28 species in May, 288 beetles of 32 species in June, peaking at 379 beetles of 32 species in July, 354 beetles of 23 species in August, and 224 beetles of 14 species in September. Additionally, we collected 305 beetles of 32 species at 400 m, 326 beetles of 31 species at 500 m, 359 beetles of 27 species at 600 m, 582 beetles of 16 species at 700 m, and 112 beetles of 7 species at 800 m near the summit. The habitat distribution by slope was 307 beetles (20 species of 8 families) on the southern slope and 1,077 beetles (34 species of 15 families) on the northern slope. For the 307 beetles of 20 species collected from the southern slope, the diversity, evenness, and dominance indices were 0.981, 0.754, and 0.156, respectively. For the 1,077 beetles of 34 species collected from the northern slope, the diversity evenness, and dominance indices were 1.187, 0.775, and 0.101, respectively.

Fish Community Structure in the Pyeongchanggang River

  • Choi, Jun-Kil
    • Animal Systematics, Evolution and Diversity
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    • 제27권2호
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    • pp.151-158
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    • 2011
  • Fish community structure in the Pyeongchanggang River was investigated from April to November 2009. About 900 individuals representing 24 species from eight families at six sites in the Pyeongchanggang River were collected. It was similar to the 2001's survey and it was less than 2006's survey. The Korean endemic species, Zacco koreanus was the most abundant, whereas subdominant species were native species, such as Pungtungia herzi, Zacco platypus, Rhynchocypris kumgangensis and Rhynchocypris oxycephalus. Three endangered species were collected at the sampling area, Acheilognathus signifier (relative abundance [RA] 0.9%), Pseudopungtungia tenuicorpa (RA 1.4%), and Cottus koreanus (RA 3.6%). One natural monument species, Hemibarbus mylodon, was included. According to the analysis of ecological indicator characteristics, the relative proportion of tolerant species was 6.3% (57 individuals), whereas the proportion of sensitive species was 65.9% (593 individuals). Species evenness, richness and diversity indices decreased gradually through the month from April to November during the study. Community indices in Pyeongchanggang River showed a high evenness index (J'>0.6), a low level of species richness (R<3.5) and a medium level of diversity (1.5

동해 심해 생태계의 수심별 종조성 및 계절변동 (Seasonal variation of species composition by depths in deep sea ecosystem of the East Sea of Korea)

  • 손명호;이해원;홍병규;전영열
    • 수산해양기술연구
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    • 제46권4호
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    • pp.376-391
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    • 2010
  • To investigate seasonal variation and species composition by depth layers in the deep sea ecosystem of the East Sea of Korea, bottom trawl survey was conducted at 4 depth layers during spring and autumn from 2007 to 2009. A total of 47 species were collected and were composed of 23 fish species, 9 crustacea, 6 cephalopoda and 9 gastropoda. The main dominant species at each depth layers were Chionoecetes opilio in 300m, Berryteuthis magister in 500m, Chionoecetes japonicus in 700m and 900m. In spring, richness indices (R) showed low value of 2.01 in 500m depth, and high value of 2.16 in 300m depth. Diversity indices (H') showed low value of 1.53 in 300m depth, and high value of 2.09 in 700m depth. Dominance indices (D) showed low value of 0.15 in 700m depth, and high value of 0.31 in 300m depth. In Autumn, richness indices showed low value of 1.48 in 900m depth, and high value of 2.69 in 300m depth. Diversity' indices (H') showed low value of 1.13 in 300m depth, and high value of 2.23 in 700m depth. Dominance indices (D) showed low value of 0.14 in 700m depth, and high value of 0.54 in 300m depth. In spring, similarity analysis in each depth layers showed the difference between 900m and othe depth layer, on the contrary 500m and 700m showed the similarity. In autumn, similarity analyssis in each depth layers showed the difference between 700m and other depth layers, on the contrary 300m and 500m showed the similarity.

Ecological Attributes of Species Composition by Topographical Positions in the Natural Deciduous Forest

  • Kim, Ji-Hong;Lee, Hye-Seon;Hwang, Gwang-Mo
    • Journal of Forest and Environmental Science
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    • 제27권1호
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    • pp.17-22
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    • 2011
  • Based upon the vegetation data of woody plants by plot sampling method in the natural deciduous forest of Mt. Jeombong, the study was carried out to examine importance value, rank abundance curve, and species abundance curve, and comparatively evaluate seven different species diversity indices for Shannon-Wiener index, Simpson index, McIntosh index, Log series, Margalef index, Berger-Parker index, and species richness, according to topographic positions. The minimal area which meant only few more species were increased was 3.48 ha in total. The dominant species of valley were Carpinus cordata, Acer pseudo-sieboldianum, Quercus mongolica, Acer mono, and Abies holophylla, and the dominant species of mid-slope were Quercus mongolica, Acer pseudo-sieboldianum, Carpinus cordata, Tilia amurensis, and Fraxinus rhynchophylla. Moreover, the dominant species of ridge were Quercus mongolica, Acer pseudo-sieboldianum, Tilia amurensis, Fraxinus rhynchophylla, and Acer mono. According to rank abundance curve and species abundance curve, species evenness was also low. All of Log series, species richness, Margalef, and Shannon-Wiener index discriminated that valley had the highest diversity, and ridge had the lowest diversity; but, Simpson index, McIntosh index, and Berger-Parker index represented that mid-slope had the highest diversity, and ridge had the lowest diversity. Uniquely, in Berger-Parker index, mid-slope was the higher value than total.

Assessing Biodiversity of Benthic Macroinvertebrates and Influences of Several Environmental Factors on the Community Structure in Upo Wetland by Long-term Ecological Monitoring

  • Kim, Hyoung-Gon;Lee, Dong-Jun;Yoon, Chun-Sik;Cheong, Seon-Woo
    • 한국환경과학회지
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    • 제25권4호
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    • pp.459-472
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    • 2016
  • We assessed the distribution of benthic macroinvertebrate at four surveying sites in Upo Wetland, a Ramsar site and the largest wetland in Korea, from February 2006 to November 2013. A long-term ecological monitoring was done monthly by using quantitative sampling method with dip net for analyzing the community change and correlation between the biodiversity and the environmental factors because environmental factors have a decisive effect on the community structure of the benthic macroinvertebrates. Total samples from the Upo Wetland area were classified into 3 phyla, 6 classes, 17 orders, 68 families, 176 species, and 25,720 individuals. Among the 176 species, 62 of the species had not been previously reported in this area. Asellus sp., Diplonychus esakii, and Gyraulus chinensis were the most common species in Upo Wetland. The change patterns of annual species diversity and species richness were calculated by using the average number of monthly occurring species and individuals. Diversity index increased from March to May and decreased after that showing lower diversity indices in July and August. It increased again in September and in October. Richness index showed similar tendency and fell around February and July, followed by a rising tendency around May and October. Correlation and regression analyses were performed with the change of biodiversity and each environmental factor. We found that water temperature have very significant positive correlation with species diversity in spring, and have significant indices in autumn and winter. On the other hand, precipitation showed a significantly negative correlation value in summer and autumn suggesting it has an effect on the community structure of benthic macroinvertebrates.

한강 상류수계(가평)의 저서성 대형무척추동물 군집분석 및 생물학적 수질평가 (Analysis of Benthic Macroinvertebrate Community and Biological Evaluation of Water Quality in the Gapyung Region of the Upper North Han River, Korea)

  • 배경석;유승성;원두희;김민영;신재영
    • 한국환경보건학회지
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    • 제28권2호
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    • pp.149-160
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    • 2002
  • Analysis of benthic macroinvertebrate community structure and biological estimation of water quality by the benthic macroinvertebrates from the Mt. Myungji(1267m), Mt. Kalbong(840m), Mt. Daegeum(704m) and Mt. Jubal(489m) region of Gapyung-gun, Kyunggi-do were investigated from April to November, 2001. Total taxa of benthic macroinvertebrates were 105 species, 38 families, 13 orders, 5 classes in 4 phyla. Aquatic insects were 33 species in ephemeroptera, 5 species in odonata, 13 species in plecoptera, 2 species in hemiptera, 1 species in megaloptera, 27 species in trichoptera, 3 species in coleoptera and 13 species in diptera, respectively. Non-insects were 1 species in platyhelminthes, 5 species in gastropoda, 1 species in oligochaeta, 1 species in crustacea, respectively. Ephemeroptera, trichoptera and plecoptera as indicators in clean water were very abundantly. Occurrence species at each survey area was 67 species at Mt. Myungji and 69 species at Mt. Kalbong, 48 species at Mt. Daege.um and 47 species at Mt. Jubal, respectively. Mean species diversity indices at Mt. Myungji, Mt. Kalbong, Mt. Daegeum and Mt. Jubal were 3.30, 3.33, 2.59 and 3.43, respectively. According to the saprobic system based on the species diversity indices of benthic macroinvertebrates, Mt. Myungji, Mt. Kalbong and Mt. Jubal are determined as Limnosaprobic area, respectively, but Mt. Daegeum is determined as $\beta$-mesosaprobic area.

대둔산 도립공원 일대의 저서동물 군집과 생물학적 수질평가 (Biological Water Quality Evaluation and Benthic Macroinvertebrate Community at Creeks and Streams in Provincial Park of Mt. Daedun and Its Nearby Region)

  • 배경석;김교붕;유승성;원두희;유병태;신재영
    • 환경위생공학
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    • 제16권3호
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    • pp.62-71
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    • 2001
  • The present study was performed to examine the community structure of benthic macroinvertebrates in the provincial park of Mt. Daedun and its nearby region. Sampling was conducted two times in May.June and October.November, 2000. Main two areas are Mt. Anpyong (470.0m) and Mt. Daedun (877.0m) area. Total taxa of benthic macroinvertebrates were 111 species, 47 families, 15 orders, 6 classes in 4 phyla. Aquatic insects were composed of 29 species in ephemeroptera, 10 species in odonata, 7 species in plecoptera, 2 species in hemiptera, 2 species in megaloptera, 23 species trichuptera, 6 species in coleoptera and 17 species in diptera. Other non-insects were composed of 1 species in platyhelminthes, 8 species in gastropoda, 2 species in oligochaeta, 3 species in hirudinea and 1 species in crustacea. Ephemeroptera, trichoptera and plecoptera as indicators in clean water were very abundantly. Occurrence species at each surrey area was 77 species at Mt. Anpyong area and 89 species at Mt. Daedun area, respectively. Mean values of species diversity indices were 3.04 and 2.69, respectively. According to the saprobic system based on the species diversity indices of benthic macroinvertebrates, Mt. Anpyong region are determined as polysaprobic area or ${\beta}-mesosaprobic$ area and Mt. Daedun region are determined as polysaprobic area, $\beta-mesosaprobic$ area or ${\alpha}-mesosaprobic$ area.

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유기와 관행재배 배 과수원의 무척추동물의 종 다양성 연구 (Biodiversity of Invertebrate on Organic and Conventional Pear Orchards)

  • 김도익;김선곤;고숙주;강범용;최덕수;임경호;김상수
    • 한국유기농업학회지
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    • 제19권1호
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    • pp.93-107
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    • 2011
  • 유기 배 과수원의 생물종 다양성을 조사하기 위해 토양 미소동물은 토양채취를 하였으며 지상부의 생물 조사는 pitfall 트랩, malaise 트랩, 유아등을 사용하여 채집하였다. 토양채취에서는 유기재배에서 37종 1,184마리, 관행 재배 28종 501마리였으며 pitfall 트랩에서는 각각 38종 648마리, 29종 440마리였다. malaise 트랩과 유아등에서는 각각 55종 650마리, 47종 508마리와 23종 201마리, 9종 42마리였다. 토양채취에서 톡토기목이 389마리로 많이 채집되었는데 관행재배지 보다 5배 이상 많이 채집되었으며 pitfall 트랩에서도 183마리로 3배 이상 채집되어 지표생물로 선발되었다. 토양미소동물의 유기재배지의 종 다양도는 3월에 1.956, 8월에 2.638로 관행의 1.426, 2.011보다 더 높아 유기 재배지에서 생물 다양성이 더 높았다. Pitfall 트랩에서 주로 출현한 종들은 거미류, 톡토기류, 딱정벌레였다. 딱정벌레 중에 관행재배지에는 점박이먼지벌레, 폭탄먼지벌레가 유기재배지에서는 큰넓적송장벌레가 지표생물이 될 가능성이 높았다. malaise 트랩에 의한 곤충종은 벌목, 파리목이 많이 채집되었으며, 그중에서 벌류는 고치벌과 맵시벌이 주를 이루었다. 지상부 생물의 종 다양성 조사 결과, pitfall 트랩의 종다양도가 유기재배지에서 2.952, 관행 2.587이었으며, malaise 트랩은 유기 3.120, 관행 2.398, 유아등은 유기 2.010, 관행 1.507로 나타나 malaise 트랩에서의 종 다양도가 가장 높았다.

유기농업 논에서 저서성대형무척추동물의 다양성 (Biodiversity of Benthic Macroinvertebrate on Organic Rice Paddy Field)

  • 김종선;김도익;김선곤;강범용;고숙주;임경호;김홍재
    • 한국유기농업학회지
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    • 제17권2호
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    • pp.193-209
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    • 2009
  • 조사지역에서 출현한 저서성대형무척추동물은 총 3문 5강 13목 25과 32속 36종이었는데, 출현한 분류군별 양상을 보면 주로 정수역에서 출현하는 종들이 많았지만 일반적으로 유수역에서 출현하는 다슬기나 재첩, 각다귀 등도 출현하였다. 유기농법 지역에서 출현한 분류군은 3문 4강 12목 22과 27속 28종이었고, 관행농법을 하는 지역에서 출현한 분류군은 3문 5강 10목 19과 23속 25종으로 유기농법 지역에서 3종이 더 출현하였다. 출현 분류군별 특성은 크게 유의한 결과를 찾기 힘들었고, 관행농법지역에서 출현하지 않았으나 유기농법 지역에서만 출현한 종이 11종이었고, 관행농법 지역에서만 출현한 종이 8종이었다. 개체수는 두 지역간에 큰 차이가 있었는데, 관행농법 지역에서는 245개체가 출현한 반면 유기농법 지역에서 총 870개체가 출현하여 3.6배 이상 높게 나타났다. 종 다양도 지수는 1차 조사에서 관행농법 지역은 1.53-2.21의 범위와 유기농법 지역은 1.57-2.45의 범위를 나타내었다. 2차 조사에서는 각각 1.90-2.74와 0.71-2.61의 범위를 나타내어 우점도와 반대의 결과를 보여주었다.

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한강 주요 하천의 겨울철 조류상 변화 장기 모니터링: 기존 생물다양성과 계통적 생물다양성 평가 및 비교 (Wintering Avifauna Change Long-term Monitoring in Major Watershed Tributariesin Han River: Fundamental and Phylogenetic Biodiversity Assessment and Comparison)

  • 윤성호;홍미진;최진환;이후승;유정칠
    • 환경영향평가
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    • 제30권3호
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    • pp.164-174
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    • 2021
  • 개체수와 종수에 기초한 기존 생물다양성 평가와 달리, 계통적 다양성 평가는 계통유전적 다양성 및 생태적 다양성도 평가할 수 있다. 본 연구에서는 서울특별시 철새보호구역으로 지정되어 다년간의 생태모니터링이 용이한 한강의 주요 하천인 중랑천, 청계천 및 안양천의 지난 9년간의 겨울철 조류상 장기 모니터링 결과를 이용하여 기존의 다양성 평가와 계통적 다양성 평가를 각각 수행한 뒤 각 결과가 내포하는 정보에 대해 고찰했다. 분석결과 중랑천과 안양천은 전반적으로 조류 개체수가 시계열적으로 감소한 반면 청계천은 개체수 변동이 없었다. 종 풍부도는 청계천에서 시간에 따라 소폭 상승한 반면, 중랑천과 안양천은 연도별로 차이가 없었다. 기존 종 다양도는 안양천을 제외한 중랑천과 청계천에서 시간에 따라 증가했는데, 계통적 종 다양도는 청계천에서만 증가하는 추세를 보였다. 이러한 생물다양성 평가 지수의 변동은 각 조사구역 내에서 발생한 공사 등의 인위적 요인에 의한 것으로 판단되며, 종 다양도와 계통적 종 다양도는 같은 결과를 반영하지 않는다는 것을 보여준다. 따라서 본 연구는 생물다양성 평가에 있어 유전 및 생태적 관점과 같은 다양한 시각에서 고려할 필요가 있음을 시사한다.