Research in Plant Disease 2012;18(4):381-386.
Published online December 30, 2012.
독도의 토양 선충상
김동근 ( Dong Geun Kim ) , 박병용 ( Byung Yong Park ) , 류영현 ( Young Hyun Ryu )
 
Soil Nematode Fauna in Dokdo Island of Korea
Dong-Geun Kim, Byung-Yong Park1 and Young-Hyun Ryu
Institute for Natural Products Research, Euiseong, Gyeongbuk 769-803, Korea
1Crop Protection Division, Rural Development Administration, Suwon 441-707, Korea
Received: April 10, 2012   Revised: December 20, 2012   Accepted: December 20, 2012
Abstract
Nematode fauna in Dokdo island was investigated for two years between 2008 and 2009. Population density and biomass were 239,500 m2 (26,000?836,000) and 103.9 mg/m2 (3.0?388.6), respectively. Total of 31 species of nematodes were identified : Acrobeloides is the most important genus with prominence value (PV) of 117.8, followed by Rhabditidae (PV = 81.9), Prismatolaimus (PV = 39.0), and Aphelenchoides (PV = 31.4). Among feeding group, bacteriovorus nematode composed 77% of density and 62% of biomass followed by plantparasitic and fungivorus nematodes. A species of Pratylenchus having distinctive tail terminus is under study as a new species. Biological indices, Shannon and Wiener index (2.46), Simpson’s diversity index (0.86), Species evenness (0.73), Species richness (1.30) indicate that nematode fauna in Dokdo island is diverse and unique. This study may give a general idea of nematode fauna at the Dokdo island.
Key Words: Diversity index, Dokdo island, Feeding group, Species evenness, Nematodes


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