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Çѱ¹»ýÅÂÇÐȸ / v.29, no.6, 2006³â, pp.545-550
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¼èÁ¦ºñ°¥¸Å±â Sterna albifronsÀÇ °ú»ê¶õ ¹× ÀÌÁ¾ ¾Ë È¥ÇÕ µÕÁö »ý¼º ¿øÀÎÀ¸·Î¼ ¾Ë ȸ¼ö Çൿ
( Egg Retrieval as a Source of Nests with Supernormal and Mixed Egg Clutch in Little Terns Sterna albifrons ) |
| ±èÁ¤ÈÆ;³²Çü±Ô;;À¯Á¤Ä¥; °æÈñ´ëÇб³ Çѱ¹Á¶·ù¿¬±¸¼Ò.»ý¹°Çаú;°æÈñ´ëÇб³ Çѱ¹Á¶·ù¿¬±¸¼Ò.»ý¹°Çаú;;°æÈñ´ëÇб³ Çѱ¹Á¶·ù¿¬±¸¼Ò.»ý¹°Çаú;
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| 2003$sim$2005³âÀÇ ¼èÁ¦ºñ°¥¸Å±â Sterna albifronsÀÇ ¹ø½Ä±â µ¿¾È Ãæ³² È«¼º±º °£¿ùÈ£ÀÇ ¹ø½Ä±ºÁý¿¡¼ ÃÑ 10°³ÀÇ °ú»ê¶õ¼öÀÇ µÕÁö(nest with supernormal clutch)¿Í 7°³ÀÇ ÀÌÁ¾ ¾Ë È¥ÇÕ µÕÁö(nests with mixed species clutch, ¼èÁ¦ºñ°¥¸Å±â¿Í Èò¹°¶¼»õÀÇ ¾ËÀÌ È¥ÇÕµÈ µÕÁö)°¡ °üÂûµÇ¾ú´Ù. ¼èÁ¦ºñ°¥¸Å±âÀÇ ¾Ë ȸ¼ö ÇൿÀº ÇÑ ¹è »ê¶õ¼ö¿Í °ü°è¾øÀÌ µÎ ¹øÂ° ¾Ë »ê¶õ ÀÌÈÄ ³ôÀº ºóµµ¸¦ º¸¿´´Ù. ¾Ë ȸ¼ö ÇൿÀº ¸ðµç Æ÷¶õ ´Ü°è¿¡¼ ¸Å¿ì ³ôÀº ºóµµ·Î ³ªÅ¸³µ´Ù. ¼èÁ¦ºñ°¥¸Å±â´Â µÕÁö¿¡¼ ¾à 15 cm ¶³¾îÁø ¾Ë¿¡ ´ëÇÏ¿© ³ôÀº ¾Ë ȸ¼ö Çൿ ºñÀ²À» º¸¿´À¸³ª 35$sim$55 cmÀÇ °Å¸®¿¡¼ ±Þ°ÝÈ÷ °¨¼ÒÇÏ¿´°í 60 cm °Å¸®¿¡¼´Â ¾Ë ȸ¼ö ÇൿÀÌ ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. ¼èÁ¦ºñ°¥¸Å±â´Â ¾ËÀÇ Á¾·ù ¹× Å©±â¿Í °ü°è¾øÀÌ µÕÁö Àαٿ¡ ¹èÄ¡µÈ ¾ËµéÀ» ÀÚ½ÅÀÇ µÕÁö·Î ÆíÀÔ½ÃŰ´Â ÇൿÀ» º¸¿´´Ù. º» Á¶»ç °á°ú´Â ¼èÁ¦ºñ°¥¸Å±âÀÇ ¾Ë ȸ¼ö ÇൿÀÌ °ú»ê¶õ¼öÀÇ µÕÁö ¹× ÀÌÁ¾ È¥ÇÕ µÕÁö¸¦ »ý¼ºÇÒ °¡´É¼ºÀÌ ÀÖÀ½À» ½Ã»çÇÑ´Ù. |
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| Ten supernormal clutches of little terns Sterna albifrons and seven clutches having mixed eggs by little terns and kentish plovers Charadrius alexandrinus were recorded during the breeding seasons of 2003$sim$2005 at Ganwol lake, Hongsung-gun, Chungcheongnam-do, Korea. The frequency of egg retrieval by Little Terns was higher after the second egg laying regardless of the clutch size and incubation stage. The frequency of egg retrieval was high at all incubation stage. When experimental eggs were placed within 15 cm from the nests, the percentage of egg retrieval was highest (almost 100%). However the percentage dropped rapidly over 35$sim$55 cm range and finally to zero at 60 cm distance. Little terns retrieved all kinds of eggs set near their nests regardless of its kind or size. This study suggests that egg retrieval by little terns may be a source of the nest with supernormal and mixed egg clutch observed in this species. |
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| Ű¿öµå |
| Egg retrieval;Little tern Sterna albifrons;Nest with mixed egg clutch;Nest with supernormal clutch; |
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Journal of Ecology and Field Biology / v.29, no.6, 2006³â, pp.545-550
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1975-020X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200606142024632)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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