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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.42, no.1, 2009³â, pp.107-114
½ÇÀáÀÚ¸® À¯Ãæ°ú ¾î·ù¿¡¼­ ºÐºñµÈ Ä«ÀÌ·Î¸ó¿¡ ÀÇÇÑ ¹°º­·è·ùÀÇ »ýȰ»ç¿Í Çüź¯È­
( The Life History and Morphological Changes of Daphnia (D. pulex and D. galeata) Induced by the Larval Damselfly (Cercion sp.) and Fish (Micropterus salmoides) Kairomones )
¶ó±àȯ;Á¶È¿³à;ÃÖÇöÁÖ;±èÇö¿ì; ¼øÃµ´ëÇб³ ȯ°æ±³À°Çаú;¼øÃµ´ëÇб³ ȯ°æ±³À°Çаú;¼øÃµ´ëÇб³ ȯ°æ±³À°Çаú;¼øÃµ´ëÇб³ ȯ°æ±³À°Çаú;
 
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Daphnia pulex¿Í D. galeata¿¡ ´ëÇÑ ½ÇÀáÀÚ¸®·ù À¯ÃæÀÇ Æ÷½Ä Ư¼º°ú À̵éÀÌ Æ÷½ÄÀڷμ­ ºÐºñÇÏ´Â È­Çй°Áú¿¡ ÀÇÇØ À¯µµµÇ´Â µÎ Á¾ÀÇ ¹°º­·èÀÇ »ýȰ»ç ¹× ÇüÅÂÀû ¹æ¾î ¹ÝÀÀÀ» ¾î·ù Æ÷½ÄÀÚÀÎ ¹è½º¿¡ ´ëÇØ ³ªÅ¸³»´Â ¹ÝÀÀ°ú ºñ±³ºÐ¼® ÇÏ¿´´Ù. ½ÇÀáÀÚ¸®·ùÀÇ À¯ÃæÀº ³·°ú ¹ã¿¡ °ü°è¾øÀÌ ¼·½ÄȰµ¿À» ÇÏ¸ç »ó´ëÀûÀ¸·Î ÀÛÀº Å©±âÀÇ ¹°º­·èÀ» ÁÖ·Î Æ÷½ÄÇÏ¿´°í, ¼ÒÇüÀÇ D. galeata¿¡ ´ëÇÑ Æ÷½ÄÀ²ÀÌ ³ô¾Ò´Ù. D. pulex´Â ½ÇÀáÀÚ¸®·ù À¯Ãæ°ú ¹è½º°¡ ºÐºñÇÑ Ä«ÀÌ·Î¸ó¿¡ ´ëÇÏ¿© »ýȰ»ç ¹× ÇüÅÂÀû º¯È­¸¦ ³ªÅ¸³»¾ú´Ù. D. galeata´Â ½ÇÀáÀÚ¸®·ù À¯Ãæ¿¡ »ó´ëÀûÀ¸·Î ³ôÀº Æ÷½Ä¾Ð¿¡µµ ºÒ±¸ÇÏ°í ¹è½ºÀÇ Ä«ÀÌ·Î¸ó¿¡ ´ëÇÑ ¹ÝÀÀ¸¸À» ³ªÅ¸³Â´Ù. º» ½ÇÇèÀÇ °á°ú´Â ´Ù¾çÇÑ Æ÷½ÄÀÚ¿¡ ´ëÀÀÇÏ´Â »ýÁ¸Àü·«ÀÌ ¹°º­·è Á¾¿¡ µû¶ó ´Ù¸¦ ¼ö ÀÖÀ½À» º¸¿©ÁÖ¾ú´Ù.
We investigated the predation behavior of larval damselfly on Daphnia pulex and D. galeata, and compared the life history and morphological defenses in two Daphnia species against larval damselfly and fish kairomones. Larval damselflies showed size-dependent predation behavior and preyed upon smaller daphnids easily regardless light condition. Overall, small D. galeata juveniles were more vulnerable than D. pulex to the larval damselfly predation. D. pulex displayed life history and morphological changes as the anti-predator defenses against larval damselfly as well as large mouth bass, while D. galeata showed the anti-predator defenses to the large mouth bass. Thus, our results revealed that two Daphnia species exhibits different anti-predator defense strategy to increase survivorship.
 
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larval damselfly;fish;Daphnia;morphology;kairomone;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.42, no.1, 2009³â, pp.107-114
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200912651518774)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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