헤리티지:역사와 과학 (Korean Journal of Heritage: History & Science)

국립문화유산연구원 (National Research Institute of Cultural Heritage)
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남생이의 성적 이형성

The sexual dimorphism of Mauremys reevesii

  • 오정우 (국립문화재연구원 자연문화재연구실) ;
  • 남상헌 ((사)한국남생이보호협회) ;
  • 이성경 (국립문화재연구원 자연문화재연구실) ;
  • 강정훈 (국립문화재연구원 자연문화재연구실)
  • OH Jungwoo (Natural Heritage Division, National Research Institute of Cultural Heritage) ;
  • NAM Sangheon (Association of Korean Reeve's Turtle Conservation) ;
  • LEE Sungkyung (Natural Heritage Division, National Research Institute of Cultural Heritage) ;
  • KANG Junghoon (Natural Heritage Division, National Research Institute of Cultural Heritage)
  • 투고 : 2022.12.30
  • 심사 : 2023.01.26
  • 발행 : 2023.03.30
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초록

본 연구는 천연기념물인 남생이(Mauremys reevesii)의 암컷과 수컷의 성적 이형성의 특징을 알아보기 위해 총 21마리의 남생이를 머리, 배갑(Carapace), 복갑(Plastron)의 21개의 부위를 머리길이(HL)와 배갑길이(CL)를 기준으로 총 19개 부위의 비율 값을 도출하였다. 비율 값을 비교한 결과 남생이 수컷은 암컷보다 머리길이, 머리폭, 머리높이가 더 크고, 배갑과 복갑의 경우 모든 측정부위에서 암컷이 수컷보다 큰 것을 알 수 있었다. 암컷은 짝짓기 후 체내 수정을 통해 산란 전까지 체내에서 알을 성장시키기 때문에 암컷이 전체적으로 수컷보다 큰 것으로 판단된다. 측정된 수치의 비율 값을 통계 분석한 결과, 복갑길이(PL), 골교길이(BL), 후갑판길이(GL), 견갑판길이(IH), 항갑판길이(IAN), 고-항갑판길이(FA), 머리높이(HH)에서 통계적으로 유의한 차이를 보였다. 복갑의 부위에서 통계적으로 유의한 것으로 보아 남생이는 성장함에 따라 복갑의 각 갑판에 직접적으로 작용하는 것으로 판단된다. 또한, 남생이 수컷의 머리 크기는 암컷 보다 작지만 비율적으로 봤을 때 더 큰 것을 알 수 있었다. 남생이는 교미 전 수컷이 머리를 흔들며 구애행동을 하는 습성으로 인해 체구에 비해 오히려 머리가 더 큰 것이라 사료된다. 이번 연구를 통해 남생이의 성적 이형성 특징을 파악할 수 있었다. 하지만 대부분 구조된 개체가 대부분이기 때문에 서식환경과 연령을 정확히 파악할 순 없었다. 추후 서식지와 연령이 명확한 개체를 대상으로 추가적인 연구를 진행한다면 성장하면서 발달하는 신체적 차이에 관한 특징을 규명할 수 있을 것으로 보인다.

In this study, a total of 21 parts of the head, carapace, and plastron of 21 tortoises were examined to investigate the characteristics of male and female sexual dimorphism of the Reeve's turtle (Mauremys reevesii), a natural monument in Korea. The ratio values of a total of 19 areas were derived from Head Length (HL) and Carapace Length (CL). As a result of comparing the ratio values, it was found that male tortoises had larger head length, head width, and head height than females compared to the size of the carapace. Since females grow eggs inside the body through internal fertilization after mating, female carapaces are judged to be larger than males overall. As a result of statistical analysis of the ratio values of the measured values, Plastron Length (PL), Bridge Length (BL), Gular Length (GL), Interhumeral Length (IH), Interanal Length (IAN), Femoral-Anal seam (FA) and Head Height (HH) showed statistically significant differences. Statistically significant in the part of the plastron, it is judged that the tortoise acts directly on each deck of the plastron as it grows. In addition, the head size of male tortoises was smaller than that of females, but it was found to be larger in proportion. It is considered that the tortoise has a rather large head compared to the body due to the male's habit of shaking his head and courtship behavior before mating. This study, we were able to identify the characteristics of sexual dimorphism in Reeve's turtle. However, since most of them were rescued, it was not possible to accurately determine habitat and age. In the future, if additional studies are conducted on individuals with clear habitats and ages, it is expected that the characteristics of the physical differences that develop as they grow can be identified.

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참고문헌

  1. 강영선.윤일병, 1975, 「한국동식물도감 제17권 동물편(양서.파충류)」, 「문교부」, p.191.
  2. Buhlmann, K.A., R. Hudson and A.G.J. Rhodin, 2002, 'A global action plan for conservation of tortoise and freshwater turtles', Conservation International and Chelonian Research Foundation. Washington, D.C., pp.1~30.
  3. Du, W.G. and J.W. Shen, 2007, 'Growth and sexual size dimorphism in the Chinese three-keeled pond turtle(Chinemys reevesii)', Acta Herpetologica Sinica 11, pp.42~47(in Chinese with English abstract).
  4. Gibbons, J.W. and J.E. Lovich, 1990, 'Sexual dimorphism in turtles with emphasis on the slider turtle (Trachemys scripta)', Herpetological Monographs (4), pp.1~29. https://doi.org/10.2307/1466966
  5. Heppell, S.S., 1998, 'Application of life-history theory and poulation medel analysis to turtle conservation', Copeia 2, pp.367~375. https://doi.org/10.2307/1447430
  6. Iverson, J.B. and W.P. McCord, 1994, 'Variation in East Asian turtles of the genus Mauremys (Bataguridae; Testudines)', Jourmal of Herpetology (28), pp.178~187. https://doi.org/10.2307/1564618
  7. Jung, Y.J., I.H. Kim and D.S. Park, 2016, 'The Possibility Assessment of Age Estimation of the Endangered Reeves' Turtle (Mauremys reevesii) Based on the Number of Growth Lines on Dorsal Scutes', Korean Journal of Environment Ecology 30(6), pp.970~976(in Korea with English abstract). https://doi.org/10.13047/KJEE.2016.30.6.970
  8. Klemens, M.W., 2000, 'Turtle conservation', Smithsonian Institution Press. Washington, D.C., pp.1~32.
  9. Liu, C.C. and S.C. Hu, 1939, 'Notes on growth of Geoclemys reevesii'. Peking Natl. His. Bull, 14(1939), pp.253~267.
  10. Lovich, J.E., Y. Yasukawa and H. Ota, 2011, 'Mauremys reevesii (Gray 1831) - Reeves' Turtle, Chinese Three-Keeled Pond Turtle. Conservation Biology of Freshwater Turtles and Tortoises', Chelonian Research Monographs 5, pp.1~10. https://doi.org/10.3854/crm.5.050.reevesii.v1.2011
  11. Mao S.H., 1971, 'Turtles of Taiwan: a natural history of the turtles', Taipei: Commercial Press, p.128.
  12. National Research Institute of Cultural Heritage, 2015, 'A Study on distribution and change of natural monument (animals)', National Research Institute of Cultural Heritage. Korea: Daejeon, pp.78~125.
  13. National Research Institute of Cultural Heritage, 2016, 'A Study on distribution and change of natural monument (animals)', National Research Institute of Cultural Heritage. Korea: Daejeon, pp.50~106.
  14. Park, Y.S., M.H. Chang, J.Y. Cha, D.G. Cho, S.H. Kim and S.W. Lee, 2015, 'A Study on Site Selection for Reeve's Turtle (Mauremys reevesii) Habitats Using Habitat Suitability Index', Journal of the Korea Society of Environmental Restoration Technology 18(3), pp.109~118(in Korea with English abstract). https://doi.org/10.13087/kosert.2015.18.3.109
  15. Rhymer, J.M. and D. Simberloff, 1996, 'Extinction by hybridization and introgression', Annual Review of Ecology and Systematics 27, pp.83~109. https://doi.org/10.1146/annurev.ecolsys.27.1.83
  16. Shim, Y.J., D.G. Cho, J.P. Hong, D.H, Kim, Y.S. Park and H.C. Sung, 2015, 'Site Selection of Narrow-mouth Frog (Kaloula borealis) Habitat Restoration Using Habitat Suitability Index', Journal of the Korea Society of Environmental Restoration Technology 18(2), pp.33~44(in Korean with English abstract). https://doi.org/10.13087/kosert.2015.18.2.33
  17. Song, J.Y., 2007, 'Current status and distribution of reptiles in the Republic of Korea. Korean Journal of Environmental Biology 25, pp.124~238(in Korean with English abstract).
  18. Song, J.Y. and K.S. Koo, 2014, 'Distribution and Movement of Reeves's Turtle (Mauremys reevesii) in South Korea', Chinese Journal of Wildlife 35, pp.329~334.
  19. Toda, N., M. Saka, Y. Ueda, H. Hoshi, T. Uemura and Y. Kamata, 2004, 'Comparative analyses of serum vitellogenin levels in male and female Reeves' pond turtles (Chinemys reevesii) by an immunological assay', Journal of Comparative Physiology B, 174(1), pp.13~20. https://doi.org/10.1007/s00360-003-0384-2
  20. Wyneken, J., 2001, 'The Anatomy of Sea Turtles. Southeast Fisheries Science Center', United States of America: Miami, pp.1~60.
  21. Xia, X., L. Wang, L. Nie, Z. Huang, Y. Jiang, W. Jing and L. Liu, 2011, 'Interspecific hybridization between Mauremys reevesii and Mauremys sinensis: Evidence from morphology and DNA sequence data', African Journal of Biotechnology Vol. 10(35), pp.6716~6724.
  22. Yabe, T., 1994, 'Population structure and male melanism in the Reeve's turtle, Chinemys reevesii', Japanese Journal of Herpetology 15, pp.131~137. https://doi.org/10.5358/hsj1972.15.4_131
  23. Yabe, T., 2009, 'Melanism in the Chinese three-keeled pond turtle Chinemys reevesii', Bulletin of the Herpetological Society of Japan 2009, pp.187~190.
  24. Yasukawa, Y., H. Ota and J.B. lverson, 1996, 'Geographic Variation and Sexual Size Dimorphism in Mauremys mutica (Cantor, 1842) (Reptilia: Bataguridae), with Description of a New Subspecies from the Southern Ryukyus, Japan', Zoolagical Science 13, pp.303~317.  https://doi.org/10.2108/zsj.13.303
  25. 국가법령정보센터, https://www.law.go.kr/행정규칙/유입주의생물지정고시(접속일: 2022.11.08.) 
  26. 「천연기념물 '남생이'를 아시나요」, 「서울신문」, 2014.03.14., p.17.