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Çѱ¹»ýÅÂÇÐȸ / v.28, no.5, 2005³â, pp.287-293
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( Occurrence and Population Dynamics of Spiders in Transplanting Rice Fields under Different Levels of Pest Management )
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º» ¿¬±¸´Â 1996³âºÎÅÍ 1998³â±îÁö °æ±âµµ È­¼º½Ã ¹ß¾È Áö¿ªÀÇ À̾ÓÀç¹èÇÑ ³í¿¡¼­ ¹ß»ýÇÏ´Â °Å¹ÌÀÇ °³Ã¼±º µ¿Å ¹× ±ºÁýÀڷḦ ¹ÙÅÁÀ¸·Î °üÇàÀÇ »ìÃæÁ¦ »ìÆ÷°¡ °Å¹Ì±ºÁý¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®Çϱâ À§ÇØ ¼öÇàµÇ¾ú´Ù. 3³â°£ Á¶»ç¿¡¼­ Á¶»ç Æ÷Àåµé¿¡¼­ °Å¹Ì±ºÁýÀº ¿¬°£ º¯À̰¡ ÀûÀº ¾ÈÁ¤µÈ ¹ß»ýÀ» º¸¿´À¸¸ç, ¹ß»ý¹Ðµµ¿¡¼­ õÀû±ºÀÇ 90% ÀÌ»óÀ» Â÷ÁöÇÏ´Â ÃÖ´ë ¿ìÁ¡±ºÀ̾ú´Ù. ÀÌ Áö¿ªÀÇ º­ »ýÀ°±â°£µ¿¾È ´ÜÀ§¸éÀû´ç$(0.25m^2)$ Æò±Õ °Å¹Ì¹Ðµµ´Â ¾à 10¸¶¸® Á¤µµ¿´À¸¸ç, ´Á´ë °Å¹Ì°ú(Lycosidae), °¥°Å¹Ì°ú(Tetragnathidae), Á¢½Ã°Å¹Ì°ú(Linyphiidae)°¡ ¿ìÁ¡ÇÏ¿´´Ù. °Å¹Ì±ºÁýÀÇ ¹Ðµµ´Â º»´ä Ãʱ⿡ º­ÀÇ À̾Ӱú ÇÔ²² ÀÌÀÔÀ¸·Î ÀÎÇØ Çü¼ºµÇ±â ½ÃÀÛÇÏ¿© Áß±âºÎÅÍ ±Þ°ÝÇÑ ¹Ðµµ Áõ°¡¸¦ º¸À̸ç, Èı⿡ ÃÖ°í¹Ðµµ¸¦ À¯ÁöÇÏ´Ù°¡ ¼öÈ®½Ã±â¿¡ ¹Ðµµ°¡ °¨¼ÒÇÏ´Â ÆÐÅÏÀ» °¡Á³´Ù. ƯÈ÷, ºñ·¡ ÇØÃæÀÇ ¹ß»ýÀÌ Àû¾ú´ø ÇØ¿¡´Â °üÇàÀûÀÎ »ìÃæÁ¦ »ìÆ÷¿¡ ÀÇÇÑ °Å¹Ì±ºÁýÀÇ ±³¶õ È¿°ú°¡ Àû°Ô ³ªÅ¸³µ´Ù. ¿ìÁ¡Á¾ÀΠȲ»êÀû°Å¹Ì¿Í ÅΰŹ̴ ´Ù¼Ò ´Ù¸¥ °³Ã¼±º µ¿Å¸¦ °¡Á³´Âµ¥, Ȳ»êÀû°Å¹Ì´Â 7¿ù Áß¼øºÎÅÍ ¹Ðµµ°¡ ±Þ°ÝÈ÷ Áõ°¡Çϰí, Èı⿡´Â ¼ºÃ¼º¸´Ù´Â À¯Ã¼µéÀÇ ¹ß»ýºñÀ²ÀÌ ³ô¾Ò´ø ¹Ý¸é, ÅΰŹ̴ 8¿ù ¸»ºÎÅÍ ¹Ðµµ°¡ ±Þ°ÝÈ÷ Áõ°¡ÇÏ¿´°í, Èı⿡ ¼ºÃ¼ÇüÅ·Π´ëºÎºÐ ¹ß°ßµÇ¾ú´Ù.
This study was conducted to evaluate the effect of the conventional pesticide application system on the rice spider community based on the quantitative investigation of arthropod community in the rice fields in Saran area, Hwasung-si, Kyeonggi-do from 1996 to 1998. Spiders were the highest dominant group comprising over 90% of all natural enemies in their density, and showed very stable yearly occurrence. In these fiekds the mean density of spiders was about 10 individuals/$0.25m^2$ during the rice growing season, and three families including Lycosidae, Tetragnathidae and Linyphiidae were very abundant. The colonization of spiders occurred in early season and they showed rapid density increase in mid-season. They maintained the highest density to the late season and their density decreased at harvest season. In the years of the low rice pest occurrence, the disturbance effect on spider community by pesticides were less. Two dominant species, Pirata subpiraticus and Pachygnatha clerki, had different population dynamics; Pirata subpiraticus showed the rapid density increase in the mid-July, and most of them remained immature stages, however, in the case of Pachygnaths clerki population, they rapidly increased in the late August and most of them remained adult stage during the late growing season.
 
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Arthropod community;Pesticide;Rice field;Spider;
 
The Korean Journal of Ecology / v.28, no.5, 2005³â, pp.287-293
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200509905769527)
¾ð¾î : Çѱ¹¾î
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