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Life table descriptions of tetrastichus sp. (hymenoptera: Eulophidae) on hyphatria cunea Drury

Animal Cells and Systems 2002년 6권 1호 p.19 ~ 22
이장훈, 이기상, 이해풍,
소속 상세정보
이장훈 ( Lee Jang-Hoon ) - Dongguk University Research Institute for Natural Science
이기상 ( Lee Ki-Sang ) - Sesil Corporation IPM Team
이해풍 ( Lee Hai-Poong ) - Dongguk University College of Natural Science Department of Biology

Abstract


Life table studies were conducted in the laboratory for the eulophid gregarious pupal parasitoid, Tetrastichus sp., on Hyphantria cunea Drury at a constant temperature of 28.2±2°C, 50?60% RH to evaluate their impact on the host and their potential biological control. Development of immature stage took 20.1±2.7 d; adult females lived for 23.2±2.2 (range, 16?27) d and produced a mean of 53.6±26.6 adult progeny per female, with a sex ratio of 1: 9.5 (M:F). The intrinsic rate of natural increase (rm) was 0.178/ female/day; the net reproductive rate (R0 ), 46.74; the capacity for increase (rc) 0.177; the finite rate of increase (λ) 1.195/female/day; thus each female contributed 46.74 individuals to the population in a mean generation time of 21.6 d. Biological factors in determining the life history trait variation of the parasitoid were discussed.

키워드

Tetrastichus sp. life table; Net reproductive rate; Capacity for increase; Finite rate of increase; Intrinsic rate of natural increase

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