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Ovipositional Characteristics of the Ussur Brown Katydid, Paratlanticus ussuriensis (Orthoptera: Tettigoniidae)

갈색여치(Paratlanticus ussuriensis)의 산란 특성

  • Bang, Hea-Son (Division of Environmental Ecology, National Institute of Agricultural Science and Technology, RDA) ;
  • Na, Young-Eun (Division of Environmental Ecology, National Institute of Agricultural Science and Technology, RDA) ;
  • Han, Min-Su (Division of Environmental Ecology, National Institute of Agricultural Science and Technology, RDA) ;
  • Kim, Myung-Hyun (Division of Environmental Ecology, National Institute of Agricultural Science and Technology, RDA) ;
  • Roh, Kee-An (Division of Environmental Ecology, National Institute of Agricultural Science and Technology, RDA) ;
  • Lee, Jung-Taek (Division of Environmental Ecology, National Institute of Agricultural Science and Technology, RDA)
  • 방혜선 (농업과학기술원 환경생태과) ;
  • 나영은 (농업과학기술원 환경생태과) ;
  • 한민수 (농업과학기술원 환경생태과) ;
  • 김명현 (농업과학기술원 환경생태과) ;
  • 노기안 (농업과학기술원 환경생태과) ;
  • 이정택 (농업과학기술원 환경생태과)
  • Published : 2008.09.30

Abstract

Paratlanticus ussuriensis oviposited from early July to mid-September under laboratory condition. A female laid on average 145 eggs during the period of reproduction and over 54% of the eggs were laid within 2 weeks after the first laying. The average depth of egg-laying in soil was 19.4 mm under surface. The average major axis of an egg was 5.7 mm and the minor axis was 2.0 mm. Just before hatching, the egg swelled about twice the weight of a newly laid. In tests of ovipositional preference in different types of media, more eggs were laid in soil than in vermiculite or in $Oasis^{(R)}$ floral form. Females also prefer shaded places in the field for reproduction, away from sunshine. In terms of the strategy for egg survival, adult moves to the hill-side adjacent to orchard farm to find a proper place for their egg laying and its survival in winter.

최근 과수에 문제를 발생시키고 있는 갈색여치의 대발생 원인을 구명하기 위하여 갈색여치의 산란특성에 대한 연구를 수행하였다. 갈색여치는 실내실험에서 7월 초순부터 9월 초순까지 산란을 하며, 암컷 한 마리당 평균 145개의 알을 산란하였다. 일생 동안 산란하는 산란양의 54%를 산란 초기 2주 이내에 산란하였다. 평균 산란 깊이는 19.4 mm이었으며, 알의 크기는 산란 직후 장경이 약 5.7 mm, 단경이 2.0 mm이었다. 그러나 부화 직전의 알은 산란 직후 알 무게의 약 2배가량 증가하였다. 산란 배지 선호실험에서는 밭토양> 오아시스폼$^{(R)}$> 버미큘라이트 순으로 높은 산란 양을 보였다. 야외에서 산란장소는 성충이 서식한 과수원이 아닌, 수분이 유지되는 인근 야산 골짜기로 관찰되어, 겨울 동안의 토양온도와 습도가 알로 월동하는 갈색여치의 생존에 중요한 영향을 미칠 수 있는 요인으로 추정된다.

Keywords

References

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