Responses of Thrips hawaiiensis and Thrips flavus populations to elevated CO2 concentrations

文献类型： 外文期刊

第一作者： Gu, Zhaoyang

作者： Gu, Zhaoyang;Zhang, Ting;Long, Shaocheng;Wang, Chun;Chen, Qiuchi;Chen, Jie;Feng, Ziyi;Cao, Yu;Li, Shuai

作者机构：

关键词： Thrips hawaiiensis; Thrips flavus; life table; population development; CO2 concentration increase

期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.2； 五年影响因子：2.3 ）

ISSN： 0022-0493

年卷期： 2023 年 116 卷 2 期

页码：

收录情况： SCI

摘要： Increased atmospheric CO2 concentrations may directly affect insect behavior. Thrips hawaiiensis Morgan and T. flavus Schrank are economically important thrips pests native to China. We studied the development, survival, and oviposition of these two thrips under elevated CO2 concentrations (800 mu l liter(-1)) and ambient CO2 (400 mu l liter(-1); control) conditions. Both thrips species developed faster but had lower survival rates under elevated CO2 levels compared with control conditions (developmental time: 13.25 days vs. 12.53 days in T. hawaiiensis, 12.18 days vs. 11.61 days in T. flavus; adult survival rate: 70.00% vs. 64.00% in T. hawaiiensis, 65.00% vs. 57.00% in T. flavus under control vs. 800 mu l liter(-1) CO2 conditions, respectively). The fecundity, net reproductive rate (R-0), and intrinsic rate of increase (r(m)) of the two species were also lower under elevated CO2 concentrations (fecundity: 47.96 vs. 35.44 in T. hawaiiensis, 36.68 vs. 27.88 in T. flavus; R-0: 19.83 vs. 13.62 in T. hawaiiensis, 14.02 vs. 9.86 in T. flavus; and r(m): 0.131 vs. 0.121 in T. hawaiiensis, 0.113 vs. 0.104 in T. flavus under control and 800 mu l liter(-1) CO2 conditions, respectively). T. hawaiiensis developed slower but had a higher survival rate, fecundity, R-0, and r(m) compared with T. flavus at each CO2 concentration. In summary, elevated CO2 concentrations negatively affected T. hawaiiensis and T. flavus populations. In a world with higher CO2 concentrations, T. hawaiiensis might be competitively superior to T. flavus where they co-occur.

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