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DOI10.1002/ps.5344
The importance of timing of heat events for predicting the dynamics of aphid pest populations
Zhao, Fei1,2; Xing, Kun1; Hoffmann, Ary A.3; Ma, Chun-sen2
发表日期2019
ISSN1526-498X
EISSN1526-4998
卷号75期号:7页码:1866-1874
英文摘要

BACKGROUND Heatwaves are increasing in frequency and there is growing interest in their impact on pest organisms. Previous work indicates that effects depend on the timing of the stress event, whose impact needs to be characterized across the full set of developmental stages and exposure periods of an organism. Here, we undertake such a detailed assessment using heat stress (20-35 degrees C diurnal cycle) across the nymph and adult stages of the English grain aphid, Sitobion avenae (Fabricius). RESULTS Stress-related mortality increased with stress duration at all stages; effects were less severe at the late nymphal stage. Effects on longevity adults after stress showed a complex pattern with nymphal heat stress, increasing with stress duration at the late nymphal stage, but decreasing with duration at the early nymphal stage. Longevity was also reduced by adult stress although to a lesser extent, and patterns were not connected to duration. Post-stress productivity decreased following adult and nymphal stress and the decrease tended to be correlated with stress duration. The rate of offspring production was more affected by adult stress than nymphal stress. Productivity and longevity effects, when combined, showed that the largest effect of heat stress occurred at the early nymphal stage. CONCLUSION These findings highlight the complex ways in which heat stress at a particular life stage influences later fitness and they also emphasize the importance of considering multiple fitness components when assessing stress effects. (c) 2019 Society of Chemical Industry


WOS研究方向Agriculture ; Entomology
来源期刊PEST MANAGEMENT SCIENCE
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/100188
作者单位1.Shanxi Acad Agr Sci, Shanxi Key Lab Integrated Pest Management Agr, Inst Plant Protect, Taiyuan, Shanxi, Peoples R China;
2.Chinese Acad Agr Sci, Climate Change Biol Res Grp, State Key Lab Biol Plant Dis & Insect Pests, Inst Plant Protect, Beijing, Peoples R China;
3.Univ Melbourne, Pest & Environm Adaptat Res Grp, Sch BioSci, Bio21 Inst, Parkville, Vic, Australia
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GB/T 7714
Zhao, Fei,Xing, Kun,Hoffmann, Ary A.,et al. The importance of timing of heat events for predicting the dynamics of aphid pest populations[J],2019,75(7):1866-1874.
APA Zhao, Fei,Xing, Kun,Hoffmann, Ary A.,&Ma, Chun-sen.(2019).The importance of timing of heat events for predicting the dynamics of aphid pest populations.PEST MANAGEMENT SCIENCE,75(7),1866-1874.
MLA Zhao, Fei,et al."The importance of timing of heat events for predicting the dynamics of aphid pest populations".PEST MANAGEMENT SCIENCE 75.7(2019):1866-1874.
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