| 马健，张熠玚，张雪艳，周晨，王蓓蓓，高博雅，胡高,2026,温带气旋影响长江下游地区褐飞虱后期发生的生态机制[J].环境昆虫学报,(1):29-40 |
| 温带气旋影响长江下游地区褐飞虱后期发生的生态机制 |
| Ecological mechanisms underlying the impact of temperate cyclones on the late-season occurrence of Nilaparvata lugens in the lower reaches of the Yangtze River |
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| DOI： |
| 中文关键词: 褐飞虱 迁飞 长江下游地区 温带气旋 广义线性模型 |
| 英文关键词:Nilaparvata lugens migration lower reaches of the Yangtze River temperate cyclone generalized linear model |
| 基金项目:国家重点研发计划（2021YFD1401102）；国家自然科学基金（32372521）；河南省农业科学院基本科研业务费专项(2026ZC57)资助 |
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| 中文摘要: |
| 【目的】长江下游稻区是我国褐飞虱的常年重发区。温带气旋作为典型的移动性锋面系统，其活动范围可跨越十余个经度，常带来大范围风雨，必然影响褐飞虱的迁飞行为。然而，温带气旋对褐飞虱迁飞的影响机制目前尚不明确。【方法】本研究基于2004-2019年6-9月长江下游地区20个站点的褐飞虱灯诱数据和温带气旋参数，通过相关性分析和广义线性模型构建研究了温带气旋对该区域8月份褐飞虱迁飞过程的影响。【结果】结果表明，8月份温带气旋对长江下游地区褐飞虱迁入峰有显著影响。江淮气旋的频率与该区域褐飞虱种群数量呈现显著的正相关（r = 0.684，P < 0.001），东海气旋的强度与褐飞虱种群数量呈现显著负相关（r = -0.627，P < 0.001）。江淮气旋发生频率高时，气旋东侧带来的高温、少雨、南风，有利于褐飞虱种群扩增并北迁至长江下游地区；相反，东海气旋较强时，气旋西侧带来的低温、强降雨和偏东风，导致褐飞虱北迁受阻，使长江下游地区褐飞虱种群数量较低。【结论】本研究明确了特定的温带气旋类型（江淮气旋、东海气旋）的时空特征显著影响了褐飞虱迁飞过程。这一发现不仅为长江下游地区褐飞虱的监测预警提供了重要支撑，也为研究气象条件驱动迁飞昆虫的机制提供了新视角。 |
| 英文摘要: |
| 【Aim】The rice-growing region in the lower reaches of the Yangtze River is a serious perennial outbreak area of the brown planthopper (BPH, Nilaparvata lugens) in China. As a typical mobile frontal system, temperate cyclones traverse over ten degrees of longitude, frequently causing extensive wind and rainfall that inevitably influence the migratory behavior of BPH. However, the impact mechanism of temperate cyclones on the migration of BPH remains unclear.【Methods】This study investigated the impact of temperate cyclones on August migration patterns in the region by analyzing light-trap data (June to September during 2004-2019) from 20 monitoring stations in the lower reaches of the Yangtze River and temperate cyclone parameters, employing correlation analysis and generalized linear models (GLMs).【Results】The results demonstrated significant effects of August temperate cyclones on BPH migration peaks in the area. The frequency of Jianghuai cyclones showed a significant positive correlation with population abundance (r = 0.684, P < 0.001), whereas the intensity of East China Sea cyclones exhibited a significant negative correlation (r = -0.627, P < 0.001). High-frequency Jianghuai cyclones promoted population growth and northward migration of BPH to the lower reaches of the Yangtze River through the eastern sector's warm temperatures, reduced precipitation, and southerly winds. Conversely, intense East China Sea cyclones hindered migration via the western sector's cool temperatures, heavy rainfall, and easterly winds, resulting in lower population levels.【Conclusion】This study establishes that spatio-temporal characteristics of specific temperate cyclone types (Jianghuai/East China Sea cyclones) significantly modulate BPH migration. These findings not only enhance early warning systems in the lower reaches of the Yangtze River but also provide novel insights into meteorological drivers of migratory insects. |
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