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Çѱ¹È¯°æ»ýÅÂÇÐȸ / v.23, no.6, 2009³â, pp.553-563
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ȯ°æÆ¯¼º¿¡ µû¸¥ Áý¹ÚÁãÀÇ ¹ÝÇâÁ¤À§(Echolocation) ½Ã±×³Î ºÐ¼®
( Echolocation Signals of Pipistrellus abramus in Relation to Environmental Type ) |
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ȯ°æÆ¯¼º¿¡ µû¸¥ Áý¹ÚÁã(Pipistrellus abramus)ÀÇ ¹ÝÇâÁ¤À§ º¯È¸¦ ºÐ¼®Çϱâ À§ÇÏ¿© 2009³â 4¿ùºÎÅÍ 8¿ù±îÁö °æ»óºÏµµ °æÁֽà õºÏ¸é ÀÏ¿øÀÇ ÁÖ°£ ÈÞ½ÄÀå¼Ò¸¦ ´ë»óÀ¸·Î ½Ç½ÃÇÏ¿´´Ù. ȯ°æÆ¯¼º À¯ÇüÀº Àϸô ÈÄ ÃâÇö¼ø°£, ÃâÇö ÈÄ À̵¿, ³í °æÀÛÁö, »ê¸² °¡ÀåÀÚ¸®, °³¹æ°ø°£, ÁÖÅôÜÁö µî 6°³ À¯ÇüÀ¸·Î ±¸ºÐÇÏ¿© ºñ±³ÇÏ¿´´Ù. ºÐ¼®°á°ú ȯ°æÆ¯¼º¿¡ µû¸¥ Â÷ÀÌ ¹× ¼½ÄÁö°£ À̵¿°ú ¸ÔÀÌÆ÷ȹÀ» À§ÇÑ ºñÇà »çÀÌ¿¡¼´Â Â÷À̰¡ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¿ÜºÎ ȯ°æÀ¸·ÎÀÇ ÃâÇö ¼ø°£¿¡¼´Â ªÀº ½Ã°£ÀÇ FM ½Ã±×³Î¸¸ È®ÀεǾúÀ¸¸ç, °³¹æ °ø°£¿¡¼´Â ±ä ½Ã°£ÀÇ CF ½Ã±×³Î ÇüÅÂÀÇ À½À» ÀÌ¿ëÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±× ¿Ü ȯ°æÆ¯¼º¿¡¼´Â ÆÞ½ºÀÇ ÇüÅÂÀûÀÎ Â÷ÀÌ´Â ÀÖ¾úÁö¸¸ FM°ú CF ½Ã±×³ÎÀ» È¥ÇÕÇÏ¿© ÀÌ¿ëÇÏ´Â °ÍÀ¸·Î È®ÀεǾú´Ù. ¸ÔÀÌÆ÷ȹÀ» À§ÇÑ ºñÇà°ú ¼½ÄÁö°£ À̵¿À» À§ÇÑ ºñÇà¿¡¼´Â ÆÞ½ºÀÇ Áö¼Ó½Ã°£À» Á¦¿ÜÇÑ ÆÞ½º °£°Ý, ÃÖ°í Áøµ¿¼ö, °³½ÃºÎ¿Í Á¾°áºÎ Áøµ¿¼ö¿¡¼´Â µÎ °¡Áö ºñÇàÆÐÅÏ »çÀÌ¿¡¼ À¯ÀÇÀûÀÎ Â÷À̰¡ È®ÀεǾú´Ù. ÃâÇö¼ø°£À» Á¦¿ÜÇÏ°í ¼½ÄÁö°£ À̵¿À» À§ÇÑ ºñÇà½Ã¿¡´Â °ïÃæÀÇ ¹ÝÇâÀ» °¨ÁöÇÏ¿© °ïÃæÀÇ Å½»ö¿¡ ÀûÇÕÇÑ Çù´ë¿ªÀÇ FM ½Ã±×³Î°ú ±ä ÆÞ½º Áö¼Ó½Ã°£À» °¡Áö´Â ÇüŸ¦ º¸¿´À¸¸ç, ¸ÔÀÌÆ÷ȹÀ» À§ÇÑ ºñÇà¿¡¼´Â Æø³ÐÀº Ž»ö°ú Á¤È®ÇÑ À§Ä¡ÆÄ¾ÇÀ» À§ÇÑ ±¤´ë¿ªÀÇ FM ½Ã±×³Î°ú ªÀº ½Ã°£ÀÇ ÆÞ½º Áö¼Ó½Ã°£À» °®´Â °ÍÀ¸·Î È®ÀεǾú´Ù. |
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This study was conducted to analyze the changes in the echolocation of Pipistrellus abramus according to environmental characteristics. The survey was conducted in the day-roosting site of P. abramus located in Gyeongju City (North Gyeongsang Province) from April to August, 2009. The environmental characteristics during the research were classified in six categories: the emergence time after sunset moving time from day roost to feeding areas; rice fields; forest edges; open spaces; and residential areas. Analysis results showed that there are differences in environmental characteristics and also differences between the moving time to the habitat and the moving time to capture preys. At the emergence time from day roost, Pipistrellus abramus used a FM signal with a short pulse-duration. In open spaces, however, they used a CF signal with a long pulse-duration. In different environmental situations, they used both FM and CF signals, although the types of pulse which they used were different. Except pulse-duration, there were significant differences in pulse-interval, peak-frequency, starting-frequency and ending-frequency between the movement among habitats and the movement to capture preys. Except the emergence time from day-roost, they showed a narrow band FM signal and a long pulse-duration that are suitable to search for insects by sensing echoes of insects when they moved among their habitats. When they were out to capture their preys, they showed a broad band FM signal and a short pulse-duration which enabled them to widely search and accurately locate their preys. |
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Ű¿öµå |
¹ÝÇâ;Áøµ¿¼ö;ÆÞ½º;CF ½Ã±×³Î;FM ½Ã±×³Î;ECHO;FREQUENCY;PULSE;CF SIGNAL;FM SIGNAL; |
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Çѱ¹È¯°æ»ýÅÂÇÐȸÁö / v.23, no.6, 2009³â, pp.553-563
Çѱ¹È¯°æ»ýÅÂÇÐȸ
ISSN : 1229-3857
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200912368301441)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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