Comparative developmental times and laboratory life tables for Drosophlia suzukii and Drosophila melanogaster (Diptera: Drosophilidae)

  • Qing-Cai Lin College of Plant Protection, Shandong Agricultural University, Taian 271000, China Institute of Plant Protection, Shandong Academy of Agricultural sciences, Jinan 250000, China
  • Yi-Fan Zhai Institute of Plant Protection, Shandong Academy of Agricultural sciences, Jinan 250000, China
  • An-Sheng Zhang Institute of Plant Protection, Shandong Academy of Agricultural sciences, Jinan 250000, China
  • Xing-Yuan Men Institute of Plant Protection, Shandong Academy of Agricultural sciences, Jinan 250000, China
  • Xiao-Yan Zhang College of Plant Protection, Yunnan Agricultural University, Kunming 650000, China
  • Frank G. Zalom Department of Entomology and Nematology, University of California, Davis, CA 95616, USA
  • Cheng-Gang Zhou College of Plant Protection, Shandong Agricultural University, Taian 271000, China
  • Yi Yu Institute of Plant Protection, Shandong Academy of Agricultural sciences, Jinan 250000, China
Keywords: intrinsic rate of increase, finite rate of increase, net reproduction rate, mean generation time

Abstract

Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) and Drosophila melanogaster Meigen were studied in a laboratory at 25 °C, 60% RH and 16:8 h L:D. Stage-specific developmental times, reproduction, stage-specific survival rates, and adult sex ratios were recorded and organized in separate life tables for each species. The intrinsic rate of increase (r), the finite rate of increase (λ), the net reproduction rate (R0) and the mean generation time (T) were 0.12 day–1, 1.13 day–1, 27.57 offspring, and 28.04 days, respectively, for D. suzukii and 0.17 day–1, 1.19 day–1, 38.17 offspring, and 21.27 days, respectively, for D. melanogaster. The use of the age-stage, two-sex life table method to study D. suzukii and D. melanogaster yielded considerably more accurate and useful data than would have been obtained by using the female-only age-specific life table. These life tables can be used for population growth projections, designing mass-rearing programs, and for pest management.

 

Drosophila suzukii (Matsumura) y Drosophila melanogaster Meigen (Diptera: Drosophilidae) fueron estudiados en un laboratorio a 25 ° C, con 60% de humedad relativa y 16:8 h L:O (Luz: Oscuridad). El tiempo de desarrollo, la reproducción, la tasa de sobrevivencia de cada estadio específico, y la proporción de sexos para los adultos fueron registrados y organizados en tablas de vida independientes para cada especie. La tasa intrínseca de crecimiento (r), la tasa finita de crecimiento (λ), la tasa neta de reproducción (R0) y el tiempo medio de generación (T) fueron 0.12 dias–1, 1.13 dias–1, 27.57 progenie y 28.04 días para D. suzukii, respectivamente, y 0.17 dias–1, 1.19 dias–1, 38.17 progenie, y 21.27 días, respectivamente, para D. melanogaster. El uso del método de hacer una tabla de vida segun la edad del estadio y los dos sexos para estudiar D. suzukii y D. melanogaster resultó en datos considerablemente más precisos y útiles de los que se habría obtenido mediante el uso de la tabla de vida de las edades específicas basada sólo en hembras. Estas tablas de vida pueden ser utilizadas para las proyecciones de crecimiento de la población, para el diseño de programas de criar en masa, y para el manejo de plagas.

 

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Author Biographies

Qing-Cai Lin, College of Plant Protection, Shandong Agricultural University, Taian 271000, China Institute of Plant Protection, Shandong Academy of Agricultural sciences, Jinan 250000, China

Qing-Cai Lin and Yi-Fan Zhai contributed equally to this work.

Yi-Fan Zhai, Institute of Plant Protection, Shandong Academy of Agricultural sciences, Jinan 250000, China
Qing-Cai Lin and Yi-Fan Zhai contributed equally to this work.
Section
Research Papers