|
|
Çѱ¹È¯°æ»ýÅÂÇÐȸ / v.21, no.1, 2007³â, pp.30-37
|
¼·Î ´Ù¸¥ ȯ°æ¿¡¼ ¼½ÄÇÏ´Â ¼ö¸®ºÎ¾ûÀÌ(Bubo bubo)ÀÇ ¸ÔÀÌ ÀÌ¿ë
( Diets and Foraging Tactics of Eurasian Eagle Owls(Bubo bubo) in Two Different Habitat Types ) |
³²Çö¿µ;ÀÌ¿ì½Å;ÃÖâ¿ë; ¼¿ï´ëÇб³ »ý¸í°úÇкÎ;¼¿ï´ëÇб³ »ê¸²°úÇкÎ;±¹¸³°ø¿ø¿¬±¸¿ø ö»õ¿¬±¸¼¾ÅÍ;
|
|
|
 |
|
|
ÃÊ ·Ï |
Çѱ¹ÁߺΠÁö¿ª¿¡ ¼½ÄÇÏ´Â ¼ö¸®ºÎ¾ûÀÌ(Bubo bubo)ÀÇ ¸ÔÀ̸¦ È®ÀÎÇÏ°í ¼½Ä ȯ°æ¿¡ µû¸¥ ¸ÔÀ̽À¼ºÀ» ÆÄ¾ÇÇϱâ À§ÇÏ¿© »ç³ÉÈçÀû ¹× ¸ÔÀÌ ÀÜÁ¸¹° 82°³, ¼ÒȵÇÁö ¾ÊÀº ¸ÔÀÌ µ¢¾î¸®ÀÎ Æç¸´(pellet) 55°³¸¦ °¢°¢ ºÐ¼®ÇÏ¿´´Ù. ±× °á°ú Á¶·ù, Æ÷À¯·ù ¹× °ïÃæÀ¸·Î ±¸¼ºµÈ ÃÑ 150°³Ã¼ÀÇ ¸ÔÀ̰¡ È®ÀεǾúÀ¸¸ç, ±× Áß Á¶·ùÀÇ ÀÌ¿ë ºóµµ(56.67%) ¹× »ý¹°·®(78.04%)ÀÌ °¡Àå ³ô¾Ò´Ù. ÁýÁã·ù(Rattus spp.), ²æ(Phasianus colchicus), µîÁÙÁã(Apodemus agrarius)¸¦ ÈçÈ÷ ÀÌ¿ëÇÏ¿´À¸³ª, »ý¹°·® Ãø¸é¿¡¼ ²æÀÌ °¡Àå Áß¿äÇÑ ¸ÔÀÌ·Î ³ªÅ¸³µ´Ù. ôÃßµ¿¹°À» ±âÁØÀ¸·Î ÇÑ ¼ö¸®ºÎ¾ûÀÌ ¸ÔÀÌÀÇ Æò±Õ »ý¹°·®Àº 503.3gÀ¸·Î¼ ºñ±³Àû ´Ù¾çÇÑ Å©±âÀÇ ¸ÔÀ̸¦ Æ÷½ÄÇÏ¿´À¸³ª, °³È°Áö º¸´Ù »ê¸²Áö¿ª¿¡¼ ´õ Å©°í ´Ù¾çÇÑ ¸ÔÀ̸¦ ÀÌ¿ëÇÏ¿´´Ù. »ê¸²Áö¿ª¿¡¼´Â ²æ°ú ¿ø¾Ó(Aix galericulata) µîÀÇ Á¶·ù¸¦ ¸¹ÀÌ Æ÷½ÄÇÏ¿´À¸³ª, ƯÁ¤ ºÐ·ù±ºÀ» ¼±È£Çϱ⠺¸´Ù ÀûÁ¤ Å©±âÀÇ ¸ÔÀ̸¦ ¼±È£ÇÏ´Â ¾ç»óÀ» º¸¿´´Ù. ¹Ý¸é °³È°Áö¿¡¼´Â ¼ÒÇüÀÇ Æ¯Á¤ Æ÷À¯·ù(¼³Ä¡·ù)¿¡ ÀÇÁ¸ÇÏ¸é¼ Å« »ý¹°·®À» °¡Áø ²æ µîÀÇ Á¶·ù¸¦ ÀϺΠÀÌ¿ëÇÏ´Â ±âȸÁÖÀÇÀûÀÎ ¸ÔÀ̽À¼ºÀ» º¸¿´´Ù. |
|
Pellets and prey remains were analyzed to compare diets and foraging tactics of Eurasian eagle owls (Bubo bubo) in two different habitat types: forested areas and open fields. Overall 150 prey items of three taxa were identified from 66 pellets and 82 prey remains, and the birds were the most important prey in biomass (78.04%) and in frequency (56.67%). Eurasian eagle owls frequently used rats (Rattus spp.), ring-necked pheasants (Phasianus colchicus), and stripped field mice (Apodemus agrarius), but the ring-necked pheasant was most important in biomass in both habitat types. The owls generally foraged various prey in biomass but the mean mass of vertebrate prey used by the Eurasian eagle owls was 503.3g in central Korea. According to the comparison of diets in the two different habitat types, the owls used bigger and more diverse prey in forested areas than in open fields. In forested areas, the Eurasian eagle owls frequently foraged the pheasants and Mandarin ducks (Aix galericulata), but they preferred prey of particular sizes to prey of particular taxa. In open fields, however, the owls showed opportunistic foraging tactics by selecting many small mammals such as rodents or a few large birds. |
|
Ű¿öµå |
°³È°Áö;¸ÔÀ̽À¼º;»ê¸²Áö¿ª;ÀÜÁ¸¹°;Æç¸´;OPEN FIELDS;FORAGING TACTICS;FORESTED AREAS;PREY REMAINS;PELLETS; |
|
|
|
 |
|
Çѱ¹È¯°æ»ýÅÂÇÐȸÁö / v.21, no.1, 2007³â, pp.30-37
Çѱ¹È¯°æ»ýÅÂÇÐȸ
ISSN : 1229-3857
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200716419423918)
¾ð¾î : Çѱ¹¾î |
|
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|