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Your Position :Home->Past Journals Catalog->2019年56 No.2

Influence of temperature on the development and reproduction of Anisopteromalus calandrae (Hymenoptera: Pteromalidae)
Author of the article:GUO Jun1** DAI Ren-Huai1*** YANG Hong1, 2 YANG Mao-Fa1, 2 HU Da-Ming3 ZHANG Xiao-Min3 WANG Yan
Author's Workplace:1. Institute of Entomology, Guizhou University, Guiyang 550025, China; 2. College of Tobacco Science, Guizhou University, Guiyang 550025, China; 3. China Tobacco Guizhou Industrial CO., LTD, Guiyang 550025, China
Key Words:Anisopteromalus calandrae; developmental rate; developmental threshold temperature; effective accumulated temperature; mathematical model
Abstract: 

[Objectives]  To explore the influence of temperature on the development and reproduction of experimental populations of Anisopteromalus calandrae. [Methods]  The duration of different developmental stages of A. calandrae were measured at 5 different temperatures. The developmental threshold temperature and effective accumulated temperature were calculated using the least square method and the relationship between temperature and developmental stage was modelled using linear regression, a Logistic model and a “Wang-Lan-Dingmodel. [Results]  The hatching rate of A. calandrae first increased, then decreased, with temperature. The highest hatching rate of larvae (88.67%) occurred at 25 . Larval survival decreased with temperature and there was a significant negative correlation between temperature and the developmental duration of each instar; i.e. the developmental period was significantly shorter at higher temperatures. The lifespan of adult A. calandrae tended to decrease with temperature; average life expectancy at 22 was 17.88d, whereas that at 31 was only 9.89d. Female fecundity increased with temperature. The developmental threshold temperature and the effective accumulated temperature for a generation were 17.81 and 138.48 degree·days, respectively. A linear regression and Logistic model more closely approximated the relationship between development rate and temperature than the "Wang-Lan-Ding" model. [Conclusion]  Temperature has a significant effect on the development and reproduction of A. calandrae and the optimum temperature range for the growth and reproduction of this species is between 25-31 .

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