Effect of Temperature on Hatching Rate of Nannophya pygmaea eggs (Odonata: Libellulidae)

꼬마잠자리(Nannophya pygmaea Rambur: Libellulidae, Odonata) 알의 부화에 미치는 온도의 영향

  • 김동건 (서울여자대학교 생물학과) ;
  • 염진화 (서울여자대학교 생물학과) ;
  • 윤태중 (서울여자대학교 생물학과) ;
  • 배연재 (서울여자대학교 생물학과)
  • Published : 2006.12.30

Abstract

The hatching rate of the eggs of Nannophya pygmaea Rambur, an endangered dragonfly species in Korea, was experimented in different temperature conditions ($10,\;15,\;20,\;25,\;and\;30^{\circ}C$) in laboratory. N. pygmaea eggs were collected from female adults inhabited a small wetland in Mungyong-si, Kyeongsangbuk-do, Korea, in July 2006. The hatching rate was evaluated from the number of hatched nymphs for the period of 100 days. As a result, the hatching rates were 83, 89, and 76% at $20,\;25,\;and\;30^{\circ}C$, respectively; however, eggs were not hatched at $10^{\circ}C\;and\;15^{\circ}C$ during the experiment period. The derived thermal threshold for egg hatching was $14.3^{\circ}C$, which is relatively higher than the values of other temperate dragonflies.

멸종위기종인 꼬마잠자리의 부화율을 5개의 온도조건($10,\;15,\;20,\;25,\;30^{\circ}C$)에서 조사하였다. 꼬마잠자리의 알은 2006년 7월 경상북도 문경시 일대의 한 작은 습지에 서식하는 암컷 성충으로부터 채취하였다. 부화율은 100일 동안 부화한 유충의 수로부터 구하였다. 꼬마잠자리의 알은 20, 25 및 $30^{\circ}C$의 온도조건에서 각각 83, 89 및 76%가 부화하였으며, $10^{\circ}C$$15^{\circ}C$에서는 실험기간동안 부화하지 않았다. 꼬마잠자리 알의 부화 임계온도는 $14.3^{\circ}C$로 추정되었으며, 다른 온대성 잠자리류보다 상대적으로 높았다.

Keywords

References

  1. Bae, Y.J. 1998. Insects' Life in Korea. I. Apterygota, Exopterygota (in part), and Aquatic Insects. Korean Entomological Institute, Korea University, Seoul
  2. Bae, Y.J., J.W. Yum and J.Y. Chao 1999. Morphology, habitat, and distributional records of Nannophya pygmaea Rambur (Libelluridae, Odonata). Korean J. Entomol. 29: 287-290
  3. Cho, P.S., 1958. A manual of the Odonata of Korea. Bull. Coll. Hum. Sci., Korea Univ., Seoul 3: 303-382, pl. 1-4
  4. Cho, P.S., 1969. Illustrated Encyclopedia of Flora & Fauna of Korea. Vol. 10 (Insecta II). Ministry of Education of Korea, Seoul
  5. Corbet, P. S., 1999. Dragonflies: Behavior and Ecology of Odonata. Cornell University Press, Ithaca, New York
  6. Ishida, S., K. Ishida, K. Kozima, and M. Sukimura, 1988. Illustrated Guide for Identification of the Japanese Odonata. Tokai University Press, Tokyo
  7. Kim, T.H., 1997. A proposal for protection of Nannophya pygmaea Rambur (Odonata) and its habitat in Korea. Korean J. Appl. Entomol. 36: 283-285
  8. Lee, S.M., 1996. The Dragonflies of Korean Peninsula (Odonata). Korean J. Nat. Conserv. 15: 73-114
  9. Lee, S.M., 2005. The biological notes of Nannophia pygmaea Rambur (Odonata: Libelluridae) from Korea. Lucanus 5: 11-12