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낙동강하구에서 쇠제비갈매기의 번식 상황의 변화

Changes of the Breeding State of Little Tern (Sterna albifrons) in the Nakdong Estuary, Busan, Republic of Korea

  • 발행 : 2009.11.30

초록

본 연구는 1990년대 중 후반기(1995년, 1996년, 1998년)와 2000년대 중반기(2004년, 2005년)에 조사한 쇠제비갈매기의 번식에 관한 자료를 분석하여 낙동강 하구의 최남단에 위치하고 있는 신자도와 도요등에서의 쇠제비갈매기(Little Tern Sterna albifrons)의 번식 상황의 변화를 알아보고자 수행하였다. 신자도에서는 1995년에 쇠제비갈매기의 둥지 638개를 조사하였는데, 한배 산란 수는 평균 2.48개이었고, 1996년에는 총 106 둥지를 조사하였는데, 한배 산란 수는 2.35개이었으며, 2004년에는 총 94 둥지를 조사하였는데 한배 산란 수는 평균 2.16개이었다. 2005년에는 총 456 둥지를 조사하였는데 한배산란 수는 평균 2.53개 이었고, 4년간의 한배 산란 수에는 통계적으로 유의한 차이가 있었다(p<0.001). 도요등에서는 1998년에 총 263 둥지를 조사하였고 한배 산란 수는 평균 2.18개이 었고, 2004년에는 총 1,023 둥지를 조사하였는데 한배 산란수는 평균 2.33개이었으며, 2005년에는 총 1,123 둥지를 조사하였는데 한배 산란 수는 평균 2.52개 이었다. 3년간의 한배 산란수에는 통계적으로 유의한 차이가 있었다(p<0.001). 신자도에서의 쇠제비갈매기의 부화 성공률은 54.5%이었으며, D형 둥지와 A형 둥지에서 높았고 C형 둥지에서 낮았다. 부화 실패 요인으로서는 범람이 가장 큰 요인이었으며 특히 C형 둥지에서 그러하였다. 도요등에서의 부화 성공률은 73.2%이었으며, D형 둥지와 A형 둥지에서 높았고 C형 둥지에서 낮았다. 부화 실패요인으로서는 범람이 가장 큰 요인이었으며 특히 C형 둥지에서의 영향이 컸다. 낙동강 하구의 사주는 앞으로도 많은 변화가 예상되지만, 쇠제비갈매기 등의 번식지로서의 기능을 다하기 위해서는 포식자의 퇴치와 사주의 육화 방지와 모래가 있는 나대지를 유지하기 위하여 갈대제거 등 지속적인 관리가 절실히 요구된다.

This study was conducted to determine the characteristics in breeding of the little tern Sterna albifrons in Shinja-do and Doyo-Deung in Nakdong estuary. The data was obtained in the middle and late 1990's and in the mid 2000's, which were analysed for the breeding information of the little tern. In Shinja-Do, a total of 638 nests were observed in 1995, and the average numbers of eggs laid per nest were 2.48. In 2004 and 2005, 94 and 456 nests were observed, and the average number of eggs laid per nest was 2.16 and 2.53, respectively. There was a significant difference between the average numbers of eggs laid per nest for the 3 respective years. In Doyo-Deung, a total of 269 nests were observed in 1998, and the average number of eggs laid per nest was 2.16. In 2004 and 2005, 1,023 and 1,123 nests were observed, and the average numbers of eggs laid per nest were 2.33 and 2.52, respectively. There was a significant difference (p<0.001) between the average number of eggs laid per nest as well. Hatching success rate by nesting site in Shinja-Do was calculated in 1995. Type A nest (nest located on dry sand land) showed a 56.8% success rate, and type B nest (nest located on the land with dwarf grass), type C nest (nest located on moist land) and type D nest (nest located on the land with shells) showed 55.3%, 36.6% and 59.3% success rates, respectively. The average hatching success rate in Shinja-Do was 54.5%. The most crucial factor for hatching failure was flood, especially, for the type C nests. The hatching success rate by the nesting site in Doyo-Deung showed an average of 73.2%. It was high in type D nest (83.8%) and type A nest (75.9%), and low in type C nest (59.7%). Again, the most crucial factor for hatching failure was flood, especially, for the type C nests. Nakdong estuary has been through many changes over time, particularly in recent. Therefore, continuous efforts to keep it a breeding place for the little tern are urgently required, including overall management of land, protection of reef and sand, etc.

키워드

참고문헌

  1. Ban, Y. B. 2004. Changes of geographical features at the barrier islands located at the southern area of Myungho Island in Nakdong estuary. Busan Research 1, 53-9
  2. Burger, J. and M. Gochfeld. 1985. Nest site selection by laughing gulls: comparison of tropical colonies (Culebra, Puerto Rico) with temperate colonies (New Jersey). Con-dor 87, 364-373 https://doi.org/10.2307/1367217
  3. Clancy, G. P. 1987. The breeding status of the little tern(Sterna albifrons) on the South Wales North coast, 1979 to 1982. Corella 11, 59-64
  4. Cramp, S. 1985. The Birds of the Western Paleartic. Vol. 4. Oxford University Press
  5. Hayasi, H. and T. Okada. 1992. The breeding status of the little tern Sterna albifrons in Japan. Strix 11, 157-168(In Japanese with English summary)
  6. Holloway, M. 1993. The variable breeding success of the little tern Sterna albifrons in South-east India and protective measures needed for its conservation. BioI. Conserv. 65, 1-8 https://doi.org/10.1016/0006-3207(93)90189-8
  7. Hong, S. B. 1997. Fauna of water birds and breeding behavior of little tern and kentish plover in the Nakdong estuary, R. O. Korea. D. Thesis, Hokkaido Univ. Hokkaido
  8. Hong, S. B. 2003. The avifauna of Nakdong estuary. Korean J. Orni. 10, 51-63
  9. Hong, S. B. 2004a. Regional characteristics of bird community in Nakdong River basin. Korean J. Ecol. 27, 269-281
  10. Hong, S. B. 2004b. Regional characteristics of bird in Nakdong estuary. Korean J. Orni. 11, 55-70
  11. Hong, S. B., Y. T. Woo and S. Higashi. 1998. Effects of clutch size and egg-laying order on the breeding success in the little tern Sterna albifrons on the Nakdong estuary, Republic of Korea. Ibis 140, 408-414 https://doi.org/10.1111/j.1474-919X.1998.tb04601.x
  12. Hong, S. B. and S. Higashi. 2008. Nesting site preference and hatching success of the kentish plover Charadrius alexandrinus) in the Nakdong estuary, Busan, Republic of Korea. J. Ecol. Field BioI. 31, 201-206 https://doi.org/10.5141/JEFB.2008.31.3.201
  13. Koo, T. H. 1994. Ecological studies of birds in West-Nakdong River. Korean J. Orni. 1, 73-81
  14. Larkins, D. 1984. Little tern breeding colony on artificial site at port Botany, New South Wales. Corella 8, 1-10
  15. Lee, C. I. 1983. A synecological study on the marine birds communities in Nakdong estuary. D. thesis, Dongguk Univ. Seoul. pp. 6
  16. Lee, C. I. 1983. A synecological study on the marine birds communities in Nakdong estuary. Korean J. Ecol. 22, 625-631
  17. Lee, I. S. and S. B. Hong. 2008. Understanding the visitation aspect of dabbling ducks (Anas spp.) in the long period at Nakdong estuary, Busan, Republic of Korea. Korean J. Ecol. 22, 625-631
  18. Lloyd, C. S., C. J. Bibby, and M. J. Everett. 1975. Breeding terns in Britain and Ireland in 1969-1974. British Birds 68, 221-237
  19. Morris, A. K. 1979. The declining status of the little tern in New South Wales. Corella 3, 105-110
  20. Norman, R. K. and D. R. Saunders. 1969. Status of little tern in Great Britain and Ireland in 1967. British Birds 62, 4-13
  21. Oh, G. H. 1993. Report to the ecosystem of visiting site of migratory birds in Nakdong estuary. Bull. Inst. Ornith. Kunnghee Univ. 347-459
  22. Parslow, J. L. F. 1967. Changes in status among breeding birds in Britain and Ireland. British Birds 60, 177-202
  23. Smith, P. 1990. The biology and management of the little tern (Sterna albifrons) in NSW. NSW Natn. Parks Widl. Servo species Mamt. Rep. 1
  24. Toba, E. 1994. Decrease of the nest of the little tern(Sterna albifrons) along the Sai and Chikuma Rivers in the Nagano basin and the protection of colonies. Strix 13, 93-101
  25. van Sluis, J. W. and l. Lijklema. 1983. Water quality aspects of the Nakdong estuary barrage. Wat. Sci. Tech. 16, 243-252
  26. Won, P. O. 1986. Birds on the Nakdong estuary. Bull. Inst. Ornith. Kyung Hee Univ. I, 1-19
  27. Won, P. O. 1989. Birds on the Naktong estuary (4). Theses Collection. Kyung Hee Univ., Seoul. Korea 18, 223-242

피인용 문헌

  1. The Visitation Aspect of Great Crested Grebe (Podiceps cristatus) in the Long Period at Nakdong Estuary, Busan, Republic of Korea vol.4, pp.4, 2011, https://doi.org/10.7229/jkn.2011.4.4.325
  2. Status of Birds in the Nakdong River Estuary Bird Sanctuary before the Four Major Rivers Project vol.17, pp.3, 2015, https://doi.org/10.17663/JWR.2015.17.3.264
  3. Understanding the Visitation Aspect of Black-headed Gull (Larus ridibundus) in the Long Period at Nakdong Estuary, Busan, Republic of Korea vol.4, pp.3, 2011, https://doi.org/10.7229/jkn.2011.4.3.205