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한국생태학회 / v.32, no.1, 2009년, pp.19-25 
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( Impact of Pesticide Treatment on an Arthropod Community in the Korean Rice Ecosystem ) |
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| 초 록 |
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| An arthropod community in a rice ecosystem was surveyed to determine the impact of two insecticides frequently used in Korean rice ecosystems: carbofuran 3GR, which targets the rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae) in the early season and fenobucarb EC, which targets the brown planthopper, Nilaparvata lugens ($St{aa}l$) (Hemiptera: Delphacidae) in the mid- and late seasons, respectively. Overall, the application of the insecticides reduced density of total arthropods by 48.4% compared to the untreated field, but their impact on each functional group were different. Carbofuran GR treatment on 1 June reduced the L. oryzophilus population significantly until mid-season. The population of filterfeeding chironomids was also reduced by 50%, whereas the spider population was less disturbed. Fenobucarb EC treatment on 16 August significantly reduced N. lugens and detrivorous entomobryid populations until the late season. Both web-building and wandering spiders were also significantly disturbed by fenobucarb EC although the impact differed according to their behavioral differences. While the population of web-building spiders significantly decreased over time, that of wandering spiders recovered from the disturbance a few weeks later. |
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| 키워드 |
| Arthropod guilds;Insecticide application;Rice ecosystems;Trophic interactions; |
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Journal of Ecology and Field Biology / v.32, no.1, 2009년, pp.19-25
한국생태학회
ISSN : 1975-020X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200911440577775)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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